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247 verified UnitedHealthcare Gastroenterologists in Washington, DC
Zocdoc verifies all providers before they can appear in Zocdoc search results. Every provider that appears in search is open to new patients.
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Availability last updated 10/22/2026
Availability last updated 10/22/2026
Gastroenterologist
4.67
·15 reviews
very professional and thorough. listened and asked questions by Hermione C.Click to read more
8 mi · 6502 Kenilworth Ave, Ste 100, Riverdale, MD 20737
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Excellent wait time · Expertise in gastroenteritis + 9 more ·
Read bio
Dr. Rai is the Medical Director of Gastro Center of Maryland and Cascades Endoscopy Center. He is a Board-Certified Gastroenterologist and Hepatologist with over 20 years of experience. Dr. Rai completed his Bachelor of Medicine, Bachelor of Surgery at the All India Institute of Medical Sciences,...Click to read more
Nurse Practitioner (Virtual)
Washington, DC
In-network · UnitedHealthcare
Accepting new patients · Offers video visits ·
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Yuna is a board-certified Family Nurse Practitioner dedicated to delivering comprehensive, patient-centered primary care at Ace Primary Care in Fairfax, VA. She earned her Bachelor of Science in Nursing from the University of Oklahoma and her Master of Science in Nursing from Georgetown University....Click to read more
Nurse Practitioner (Virtual)
Washington, DC
In-network · UnitedHealthcare
Accepting new patients · Offers video visits ·
Read bio
Yuna is a board-certified Family Nurse Practitioner dedicated to delivering comprehensive, patient-centered primary care at Ace Primary Care in Fairfax, VA. She earned her Bachelor of Science in Nursing from the University of Oklahoma and her Master of Science in Nursing from Georgetown University....Click to read more
Adult Nurse Practitioner (Virtual)
5.00
·1 review
Fantastic doctor. I was so pleased with my virtual visit at Ace Primary Care. I will recommend to all of my friends and family. Thanks again! by SJClick to read more
Washington, DC
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Charlyn Tupaz is a nurse practitioner specializing in adult-gerontology primary care, with 18 years of healthcare experience. She believes great care starts with a trusting relationship and takes time to listen to her patients and understand their goals. Charlyn focuses on preventive care, wellness...Click to read more
Gastroenterologist
4.88
·434 reviews
Very happy with Dr Lowe. He was attentive and knowledgeable and made me feel in good hands with my colonoscopy. - Apr 5, 2025Click to read more
9 mi · 5622 Shields Dr, Bethesda, MD 20817
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more
Gastroenterologist
4.81
·306 reviews
Clear communicator, cares about her patients, friendly and helpful staff - highly recommendedClick to read more
9 mi · 5622 Shields Dr, Bethesda, MD 20817
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in colonoscopy + 3 more ·
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Dr. Pia Prakash completed her medical training in Washington, D.C. She received her Bachelor in Arts and Sciences from The George Washington University with a major in Psychology. She then attended the George Washington University School of Medicine where she received her medical degree and complete...Click to read more
Gastroenterologist
4.65
·69 reviews
Great doctor, give me a lot of good advice and plan for treatment wellClick to read more
9 mi · 10301 Georgia Ave, Ste 208, Silver Spring, MD 20902
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Dr. Robert Byrne is an experienced gastroenterologist who practices at the Gastro Center of MD. He offers services to people in Riverdale and Gaithersburg, MD. Dr. Byrne is committed to providing exceptional, patient-centered care for digestive and liver disorders. He listens to each patient and cr...Click to read more
Gastroenterologist
4.82
·431 reviews
Dr. Xu is an excellent Gastroenterologist. He provided outstanding professional expertise, knowledge and care services. - Jun 24, 2025 by Qihui H.Click to read more
9 mi · 10301 Georgia Ave, Ste 208, Silver Spring, MD 20902
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 4 more
Gastroenterologist
4.92
·103 reviews
He was very kind and opening to hearing what I had to say. - Oct 15, 2025Click to read more
9 mi · 10301 Georgia Ave, Ste 208, Silver Spring, MD 20902
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Rushi Talati is an experienced gastroenterologist at Gastro Center of MD in Riverdale, Gaithersburg, and Olney, MD. He also offers services to people with digestive conditions that affect their quality of life. Dr. Talati understands patients' conditions and prepares individualized treatment pl...Click to read more
Gastroenterologist
4.88
·434 reviews
Very happy with Dr Lowe. He was attentive and knowledgeable and made me feel in good hands with my colonoscopy. - Apr 5, 2025Click to read more
9 mi · 10301 Georgia Ave, Ste 208, Silver Spring, MD 20902
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more
Family Physician
4 mi · 925 S Glebe Rd, Arlington, VA 22204
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Dr. Abe is a board-certified family medicine physician passionate about providing compassionate, personalized care. He completed his family medicine residency at UPMC Presbyterian Shadyside in Pittsburgh, PA and previously practiced medicine in Japan. Having grown up in the DMV and spent many years...Click to read more
Family Nurse Practitioner
4.67
·3 reviews
I thought the appointment was at 1:00, I showed up at 12:30, it wasn't until 4:45! They were able to get me in by 2:00 even though it was my mistake arriving so early. lVery nice! - Oct 1, 2026 by Sherrilynne H.Click to read more
4 mi · 4340 Connecticut Ave NW, Ste C, Washington, DC 20008
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
Read bio
June Bong, MSN, FNP-C, is a board-certified Family Nurse Practitioner with experience in primary care, preventive medicine, and chronic disease management. She is passionate about building meaningful relationships with her patients and helping them feel comfortable, heard, and supported throughout t...Click to read more
Gastroenterologist
4.58
·43 reviews
He listened to my concerns and gave multiple options on how to move forwardClick to read more
13 mi · 2557 Chain Bridge Rd, Vienna, VA 22181
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Excellent wait time · Expertise in upper gi endoscopy + 1 more ·
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**DISCLAIMER: After scheduling, you will receive intake forms via your patient portal or email. Prompt completion and submission of these documents is required. This step is essential for our clinical team to complete the necessary preparations for your appointment and to ensure your visit begins on...Click to read more
Gastroenterologist
4.58
·43 reviews
He listened to my concerns and gave multiple options on how to move forwardClick to read more
13 mi · 2557 Chain Bridge Rd, Vienna, VA 22181
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Excellent wait time · Expertise in upper gi endoscopy + 1 more ·
Read bio
**DISCLAIMER: After scheduling, you will receive intake forms via your patient portal or email. Prompt completion and submission of these documents is required. This step is essential for our clinical team to complete the necessary preparations for your appointment and to ensure your visit begins on...Click to read more
Internist
5.00
·3 reviews
7 mi · 7137 Arlington Rd, Bethesda, MD 20814
In-network · UnitedHealthcare
Accepting new patients · 16 years of experience · Highly recommended · Excellent wait time ·
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Dr. Bridgette C. Provost is a highly accomplished physician with a diverse background in multiple medical specialties, focusing on integrative medicine and holistic care. She is dedicated to providing comprehensive health care and addressing health disparities. Driven by a passion for improving heal...Click to read more
Family Nurse Practitioner
4.67
·15 reviews
7 mi · 7137 Arlington Rd, Bethesda, MD 20814
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
Read bio
Carlos Olivares, NP, earned his Bachelors of Science in Nursing from Kaplan University in 2012 and then went on to complete his Master's of Science in Nursing from Bowie State University in 2015. His experience as a family nurse practitioner includes emergency and urgent care as well as family healt...Click to read more
Primary Care Doctor
5.00
·34 reviews
Dr. Ikem was extremely nice and a great listener. I would 100% recommend her to anyone. - Apr 10, 2024 by Sarah G.Click to read more
7 mi · 8700 Georgia Ave, Ste 400, Silver Spring, MD 20910
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Ifechukwude (Iffie) Ikem, MD is a primary care physician specializing in Family and Social Medicine, recognized for her unwavering commitment to advancing healthcare. She completed her residency in Family and Social Medicine at Montefiore Medical Center-Albert Einstein School of Medicine, following ...Click to read more
Family Nurse Practitioner
5.00
·6 reviews
I now consider Ms. Bates to be my regular health practitioner. She’s a credit to the industry & a lovely person! - Jul 15, 2024 by Michelle K.Click to read more
7 mi · 8700 Georgia Ave, Ste 400, Silver Spring, MD 20910
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in acute urinary tract infection + 1 more ·
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Kelly W. Bates, DNP, FNP-BC, is a board certified Family Nurse Practitioner and a member of American Academy of Nurse Practitioners. Bates began her nursing education at Johns Hopkins School of Nursing and then went on to earn her Doctor of Nursing Practice degree at University of North Carolina at ...Click to read more
Nurse Practitioner (Gastroenterology)
5.00
·3 reviews
8 mi · 6502 Kenilworth Ave, Ste 100, Riverdale, MD 20737
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Xinna Yi is a board-certified Family Nurse Practitioner with a Master of Science in Nursing from Wilkes University, which she completed in 2023. She brings a wealth of experience from her work in a family practice clinic and her previous role as a registered nurse specializing in cardiology. Before ...Click to read more
Physician Assistant (Gastroenterology)
4.95
·19 reviews
I would definitely recommend my PA MELISSA To a friend. She was very thorough and extremely helpful and nice! - Mar 20, 2026 by Gloria G.Click to read more
9 mi · 5622 Shields Dr, Bethesda, MD 20817
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Ms. Melissa Nickols is an experienced physician assistant who specializes in gastroenterology. She is based out of Maryland and offers in-person services at Gastro Center of MD in Silver Spring, Riverdale, and Gaithersburg. As part of her formal education, Ms. Nickols acquired a master's degree in ...Click to read more
Gastroenterologist
4.88
·434 reviews
Very happy with Dr Lowe. He was attentive and knowledgeable and made me feel in good hands with my colonoscopy. - Apr 5, 2025Click to read more
17 mi · 15225 Shady Grove Rd,, Ste 304, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more
Family Nurse Practitioner
4.49
·37 reviews
Love this doctor!! Highly recommend. Super patient and caring. - May 10, 2025 by Alexandra R.Click to read more
11 mi · 7319 Hanover Pkwy, Ste B, Greenbelt, MD 20770
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
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Ms. Yvonne Tubene is a compassionate, friendly, and reliable family nurse practitioner offering her services at AMC Healthcare Hydration in Lanham, MD. She also takes virtual appointments. Ms. Tubene earned her associate's degree from Anne Arundel Community College, her bachelor's degree from the...Click to read more
Family Nurse Practitioner
4.77
·13 reviews
It was nice, quiet, and personal.Click to read more
11 mi · 7319 Hanover Pkwy, Ste B, Greenbelt, MD 20770
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Kehinde Adedulu, Nurse Practitioner, has a wealth of experience in healthcare. She began her career as a Registered Nurse (RN), specializing in emergency care. Mariama earned her Bachelor's degree from the University of Maryland and completed her Master's in Nursing at Walden University. With her ex...Click to read more
Family Nurse Practitioner
11 mi · 7319 Hanover Pkwy, Ste B, Greenbelt, MD 20770
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
Compassionate and results-driven Family Nurse Practitioner with 13 years of experience in acute care, emergency nursing, telehealth, case management, and utilization review. Proven expertise in patient assessment, chronic disease management, and evidence-based practice. Committed to enhancing patien...Click to read more
Family Nurse Practitioner
4.41
·32 reviews
Great hospitality - Sep 11, 2024 by Bintou T.Click to read more
11 mi · 7319 Hanover Pkwy, Ste B, Greenbelt, MD 20770
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
Mariama Koroma, Nurse Practitioner, has a wealth of experience in healthcare. She began her career as a Registered Nurse (RN), specializing in emergency care. Mariama earned her Bachelor's degree from the University of Maryland and completed her Master's in Nursing at Walden University. With her ext...Click to read more
Family Nurse Practitioner
5.00
·6 reviews
Professional, knowledgeable, with a kind and caring demeanor. What else could I ask for. by JHClick to read more
11 mi · 7319 Hanover Pkwy, Ste B, Greenbelt, MD 20770
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time
Physician Assistant
4.31
·29 reviews
Great staff! Provider listened to my concerns and went above and beyond to ensure we explored multiple possibilities regarding my health. - Mar 14, 2023Click to read more
11 mi · 2070 Chain Bridge Rd, Ste 150, Vienna, VA 22182
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
Diviya Muruganandam, PA-C, is a board-certified physician assistant at Virginia Family Medicine’s Tysons and Fairfax locations. She earned her Master’s in Physician Assistant Studies from Wingate University in North Carolina, graduating with high distinction (Pi Alpha, The National Honors Society of...Click to read more
Nurse Practitioner
4.20
·10 reviews
Khadijatu was very pleasant, and was very professional. The wait time was good. I would recommend this provider. by OYClick to read more
12 mi · 12301 Old Columbia Pike, Silver Spring, MD 20904
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
Premier Choice Primary & Urgent Care, LLC is a medical center that accepts both scheduled and walk-in appointments. We also provide telehealth and medical home care services—if you cannot come to us, we will come to you. All major insurances are accepted, including Medicare, MD-Medicaid, and DC-Medi...Click to read more
Nurse Practitioner
4.00
·4 reviews
Very nice experience by RAClick to read more
12 mi · 12301 Old Columbia Pike, Silver Spring, MD 20904
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Excellent wait time · Expertise in lower back pain ·
Read bio
Premier Choice Primary & Urgent Care, LLC is a medical center that accepts both scheduled and walk-in appointments. We also provide telehealth and medical home care services-if you cannot come to us, we will come to you. All major insurances are accepted, including Medicare, MD-Medicaid, and DC-Medi...Click to read more
Physician Assistant
5.00
·2 reviews
She is one of the best doctors that I have. She took her time to listen and to review my issue. She cares for her patient. - Oct 16, 2026 by Diem Loan D.Click to read more
13 mi · 9401 Lee Hwy, Ste 302, Fairfax, VA 22031
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Juliana Samar, PA-C, DMSc, is a highly trained physician assistant at Prima Medicine with a strong foundation in primary care, dermatology, preventive medicine, and patient-centered chronic disease management. She earned her Doctorate in Medical Science from Shenandoah University and completed advan...Click to read more
Physician Assistant
4.31
·29 reviews
Great staff! Provider listened to my concerns and went above and beyond to ensure we explored multiple possibilities regarding my health. - Mar 14, 2023Click to read more
13 mi · 9401 Lee Hwy, Ste 400, Fairfax, VA 22031
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
Diviya Muruganandam, PA-C, is a board-certified physician assistant at Virginia Family Medicine’s Tysons and Fairfax locations. She earned her Master’s in Physician Assistant Studies from Wingate University in North Carolina, graduating with high distinction (Pi Alpha, The National Honors Society of...Click to read more
Gastroenterologist
4.65
·69 reviews
Great doctor, give me a lot of good advice and plan for treatment wellClick to read more
20 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Dr. Robert Byrne is an experienced gastroenterologist who practices at the Gastro Center of MD. He offers services to people in Riverdale and Gaithersburg, MD. Dr. Byrne is committed to providing exceptional, patient-centered care for digestive and liver disorders. He listens to each patient and cr...Click to read more
Gastroenterologist
4.70
·40 reviews
Great staff. The doctor was very communicative and listened to all my concerns. - Jan 27, 2026 by Carlos A.Click to read more
20 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Dr. Jennie Zhang is a distinguished gastroenterologist. She practices at the Gastro Center of MD, serving patients in Silver Spring, Riverdale, and Olney, MD. Dr. Zhang completed her medical degree at the West Virginia School of Osteopathic Medicine and her residency in internal medicine at the Uni...Click to read more
Gastroenterologist
4.82
·431 reviews
Dr. Xu is an excellent Gastroenterologist. He provided outstanding professional expertise, knowledge and care services. - Jun 24, 2025 by Qihui H.Click to read more
20 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 4 more
Gastroenterologist
4.92
·103 reviews
He was very kind and opening to hearing what I had to say. - Oct 15, 2025Click to read more
20 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Rushi Talati is an experienced gastroenterologist at Gastro Center of MD in Riverdale, Gaithersburg, and Olney, MD. He also offers services to people with digestive conditions that affect their quality of life. Dr. Talati understands patients' conditions and prepares individualized treatment pl...Click to read more
Gastroenterologist
4.67
·15 reviews
very professional and thorough. listened and asked questions by Hermione C.Click to read more
22 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Excellent wait time · Expertise in gastroenteritis + 9 more ·
Read bio
Dr. Rai is the Medical Director of Gastro Center of Maryland and Cascades Endoscopy Center. He is a Board-Certified Gastroenterologist and Hepatologist with over 20 years of experience. Dr. Rai completed his Bachelor of Medicine, Bachelor of Surgery at the All India Institute of Medical Sciences,...Click to read more
Gastroenterologist
4.82
·431 reviews
Dr. Xu is an excellent Gastroenterologist. He provided outstanding professional expertise, knowledge and care services. - Jun 24, 2025 by Qihui H.Click to read more
22 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 4 more
Gastroenterologist
4.92
·218 reviews
My experience was great. The staff members were very professional. - May 1, 2025 by Chereka M.Click to read more
22 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Alexander Mamunes is a reliable and accomplished internist. Catering to the people of Columbia and Timonium, MD, he works at the Gastro Center of MD, treating various complex chronic disorders in adults. As a part of his educational training, Dr. Mamunes acquired his medical degree from the Un...Click to read more
Gastroenterologist
4.83
·118 reviews
Dr. Passi was personable and made me feel comfortable. She provided thorough recommendations and answered my questions.Click to read more
22 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in acute gastrointestinal bleeding + 5 more ·
Read bio
Dr. Monica Passi is a distinguished gastroenterologist. She practices at the Gastro Center of MD and sees patients in Riverdale and Annapolis, MD.  Dr. Passi completed her medical degree from George Washington University and her internship in internal medicine at North Shore University Hospital. Sh...Click to read more
Gastroenterologist
4.82
·431 reviews
Dr. Xu is an excellent Gastroenterologist. He provided outstanding professional expertise, knowledge and care services. - Jun 24, 2025 by Qihui H.Click to read more
22 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 4 more
Gastroenterologist
4.81
·306 reviews
Clear communicator, cares about her patients, friendly and helpful staff - highly recommendedClick to read more
22 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in colonoscopy + 3 more ·
Read bio
Dr. Pia Prakash completed her medical training in Washington, D.C. She received her Bachelor in Arts and Sciences from The George Washington University with a major in Psychology. She then attended the George Washington University School of Medicine where she received her medical degree and complete...Click to read more
Gastroenterologist
4.88
·434 reviews
Very happy with Dr Lowe. He was attentive and knowledgeable and made me feel in good hands with my colonoscopy. - Apr 5, 2025Click to read more
22 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more
Gastroenterologist
4.82
·317 reviews
A medical emergency caused the doctor to be late to my appointment. Other than that, it was a great experience - Jul 11, 2025Click to read more
22 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in acid reflux + 4 more ·
Read bio
Dr. Josh Rosenbloom is a Board-Certified physician who specializes in both Gastroenterology and hepatology. Dr. Rosenbloom received his medical degree from Des Moines University and completed his internal medicine residency and Gastroenterology fellowship at St. John Providence health system through...Click to read more
Gastroenterologist
4.90
·552 reviews
Great experience very friendly, knowledgeable staff. Would definitely recommend to anyone looking for a G.I. doctor. - May 16, 2023 by Gary N.Click to read more
22 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · 18 years of experience · Highly recommended · Expertise in colonoscopy + 3 more ·
Read bio
Farzin Rashti, M.D., FACP is Board Certified in Gastroenterology & Hepatology and Internal Medicine and is dedicated to offering his patients superior personalized care in a respectful and supportive environment. Dr. Rashti works toward developing a partnership with his patients and forms a unique c...Click to read more
Gastroenterologist
4.84
·44 reviews
Knows what he is talking about. Funny and charming. Easy going by GPClick to read more
22 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 2 more ·
Read bio
Dr. Shaffer Mok is a skilled gastroenterologist. He practices at Gastro Center of MD in Owings Mills, Nottingham, and Lutherville Timonium, MD. With a patient-centered approach, Dr. Mok takes the time to understand each individual's symptoms, concerns, and lifestyle, fostering a trusting and collab...Click to read more
Gastroenterologist
4.88
·241 reviews
Great and exceptional service. Doctor Castillo is a great listener and he is caring. - Jan 10, 2022 by Franklyn I.Click to read more
22 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 2 more ·
Read bio
Serving the communities of Olney and Columbia, MD, Dr. Eduardo Castillo is an attending physician at Gastro Center of Maryland. An accomplished gastroenterologist, he looks forward to providing his patients with the proper tools and advice they need to improve or maintain their overall health. Dr...Click to read more
Nurse Practitioner (Gastroenterology)
4.78
·18 reviews
18 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time
Physician Assistant (Gastroenterology)
4.56
·9 reviews
18 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients
Nurse Practitioner (Gastroenterology)
5.00
·3 reviews
18 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Xinna Yi is a board-certified Family Nurse Practitioner with a Master of Science in Nursing from Wilkes University, which she completed in 2023. She brings a wealth of experience from her work in a family practice clinic and her previous role as a registered nurse specializing in cardiology. Before ...Click to read more
Physician Assistant (Gastroenterology)
4.95
·19 reviews
I would definitely recommend my PA MELISSA To a friend. She was very thorough and extremely helpful and nice! - Mar 20, 2026 by Gloria G.Click to read more
20 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Ms. Melissa Nickols is an experienced physician assistant who specializes in gastroenterology. She is based out of Maryland and offers in-person services at Gastro Center of MD in Silver Spring, Riverdale, and Gaithersburg. As part of her formal education, Ms. Nickols acquired a master's degree in ...Click to read more
Nurse Practitioner (Gastroenterology)
5.00
·3 reviews
20 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Xinna Yi is a board-certified Family Nurse Practitioner with a Master of Science in Nursing from Wilkes University, which she completed in 2023. She brings a wealth of experience from her work in a family practice clinic and her previous role as a registered nurse specializing in cardiology. Before ...Click to read more
Adult Nurse Practitioner
22 mi · 21631 Ridgetop Cir, Ste 155, Sterling, VA 20166
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Wendy is a certified and licensed Adult Nurse Practitioner with over 15 years of clinical experience. She holds a Bachelor's degree in Nursing from Georgetown University and a Master's in Nursing from The Catholic University of America. Wendy brings a holistic approach to wellness with a strong back...Click to read more
Nurse Practitioner (Gastroenterology)
4.93
·85 reviews
She is really wonderful. She addressed all of my concerns! - Sep 21, 2026 by Lainey D.Click to read more
22 mi · 46169 Westlake Dr Ste 200, Sterling, VA 20165
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
*$75 cancellation fee if cancelled within 48 hours of the appointment* Maria Layao FNP-BC is a dedicated and compassionate nurse practitioner who cares for patients with Crohn’s disease, ulcerative colitis, infectious colitis, GERD, Barrett’s esophagus, viral hepatitis, liver disease, and many othe...Click to read more
Nurse Practitioner (Gastroenterology)
4.91
·107 reviews
Great all in. - Feb 16, 2026 by Bassem S.Click to read more
22 mi · 46169 Westlake Dr Ste 200, Sterling, VA 20165
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
*$75 cancellation fee if cancelled within 48 hours of the appointment* Courtney Ngo, MSN, FNP-C, is a board-certified family nurse practitioner committed to providing patient-centered, quality care. She earned her bachelor's degree from Virginia Tech and completed her master's in nursing at The Geo...Click to read more
Gastroenterologist
4.90
·552 reviews
Great experience very friendly, knowledgeable staff. Would definitely recommend to anyone looking for a G.I. doctor. - May 16, 2023 by Gary N.Click to read more
28.5 mi · 1419 Frst Dr, Annapolis, MD 21403
In-network · UnitedHealthcare
Accepting new patients · 18 years of experience · Highly recommended · Expertise in colonoscopy + 3 more ·
Read bio
Farzin Rashti, M.D., FACP is Board Certified in Gastroenterology & Hepatology and Internal Medicine and is dedicated to offering his patients superior personalized care in a respectful and supportive environment. Dr. Rashti works toward developing a partnership with his patients and forms a unique c...Click to read more
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Primary Care Physician
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In the business of finding quality care for patients

Patients trust Zocdoc
Thanks Zocdoc! You have been a lifesaver. I was able to find some of the best doctors. This app makes looking for quality care a lot easier.
Michael L
So easy to use and works EVERY time!! As a busy woman, I need to be able to schedule things quickly, and this makes that simple!! Thank you!!
Deborah P.
My previous eye doctor has just moved away & I needed to be seen fast, so I turned to Zocdoc. Have always found great doctors through it.
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Frequently asked questions

How can I make a same-day appointment with a Gastroenterologist in Washington who takes UnitedHealthcare insurance?

On average, patients who use Zocdoc can search for a Gastroenterologist in Washington who takes UnitedHealthcare insurance, book an appointment, and see the Gastroenterologist within 24 hours. Same-day appointments are often available, you can search for real-time availability of Gastroenterologists in Washington who accept UnitedHealthcare insurance and make an appointment online.


How can I find a Gastroenterologist in Washington who takes UnitedHealthcare?

Zocdoc lets you search specifically for a Gastroenterologist in Washington who takes UnitedHealthcare. Just choose your carrier and plan from the drop-down menu at the top of the page. If you’re not sure which plan you have, you can use Zocdoc’s insurance checker to find out.


How can I book an appointment online with a UnitedHealthcare Gastroenterologist in Washington?

Zocdoc is a free online service that helps patients find UnitedHealthcare Gastroenterologists in Washington and book appointments instantly. You can search for UnitedHealthcare Gastroenterologists in Washington by symptom or visit reason. Based on that information, you’ll see a list of providers who meet your search criteria, along with their available appointment slots.


How can I find a female Gastroenterologist in Washington who takes UnitedHealthcare insurance?

When you search for UnitedHealthcare Gastroenterologists in Washington on Zocdoc, you can filter your results by gender, in addition to other criteria. That way, you’ll only see UnitedHealthcare Gastroenterologists in Washington who match your preferences.


How can I find a UnitedHealthcare Gastroenterologist in Washington who sees patients after hours?

On Zocdoc, you can search specifically for UnitedHealthcare Gastroenterologists in Washington with availability after 5 p.m.


How can I find a top-rated UnitedHealthcare Gastroenterologist in Washington?

You can use Zocdoc to find UnitedHealthcare Gastroenterologists in Washington who are highly rated by other patients. These ratings are based on verified reviews submitted by real patients. Every time a patient completes an appointment booked on Zocdoc, they’re invited to review their experience. Each review must comply with Zocdoc’s guidelines.


How can I find a video visit with a Gastroenterologist online in Washington?

Gastroenterologists in Washington on Zocdoc who see patients through online video visits will have a purple video icon on their profiles. You can also filter your search results to show only Gastroenterologists who offer video visits.


Are video visits with a Gastroenterologist online covered by UnitedHealthcare?

Most insurers provide coverage for video visits at the same cost as in-person visits. You can search on Zocdoc specifically for Gastroenterologists in Washington who accept UnitedHealthcare for video visits by selecting your carrier and plan from the drop-down menu at the top of the page. We recommend you check with your insurance carrier directly to confirm your coverage and out of pocket costs for video visits.


How can I find a UnitedHealthcare Gastroenterologist in Washington who sees patients in the morning or evening?

Zocdoc lets you search specifically for a Gastroenterologist who has appointments available before 10:00 am, or after 5:00 pm. Just choose the special hours filter at the top of our search page.


How can I find a UnitedHealthcare Gastroenterologist in Washington who sees patients during the weekend?

Zocdoc let's you see real-time availability for UnitedHealthcare Gastroenterologists in Washington. Many UnitedHealthcare Gastroenterologists offer appointments on Saturdays and Sundays.


Zocdoc›Gastroenterologists›Washington, DC›UnitedHealthcare