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315 verified UnitedHealthcare Gastroenterologists in Commack, NY
Zocdoc verifies all providers before they can appear in Zocdoc search results. Every provider that appears in search is open to new patients.
In-network providersInsurance logo
Availability last updated 11/09/2026
Availability last updated 11/09/2026

Dr. Alan Schuller, MD

Gastroenterologist
4.87
·112 reviews
THis was amazing - Dec 6, 2023 by Michael M.Click to read more
7.5 mi · 200 W Carver St, Ste 1, Huntington, NY 11743
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in atrial fibrillation and atrial flutter + 5 more ·
Read bio
Alan M. Schuller, MD earned a B.S. with distinction from Cornell University and his Doctor of Medicine degree from the State University of New York, Upstate Medical University. He trained in Internal Medicine at Saint Luke's-Roosevelt Hospital Center in New York City and completed a Gastroenterology...Click to read more
Next available: today

Dr. Imran Zaffer, MD

Gastroenterologist
4.70
·64 reviews
The doctor was very courteous and knowledgeable and asked in detail my prior history concerning my illness. He explained thoroughly the following steps we will be dealing with which will allow him a thorough and accurate plan of care and the staff were extremely friendly and knowledgeable in explain...Click to read more
5.5 mi · 755 Park Ave, Ste 200, Huntington, NY 11743
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Excellent wait timeExpertise in acute hemorrhoids + 8 more
Next available: Wed, Nov 18

Dr. Paul Pervil, MD

Gastroenterologist
4.92
·64 reviews
Professional, knowledgeable and friendly staff. Over the years, I have always had faith in Dr. Pervil as a thorough and caring doctor, and will continue recommending him to all! - Mar 28, 2024 by Lorraine M.Click to read more
11.5 mi · 575 Underhill Blvd, Ste 200, Syosset, NY 11791
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommendedExpertise in acute stomach inflammation/infection + 5 more
Next available: today

Dr. Soren Gandhi, MD

Gastroenterologist
4.74
·78 reviews
First time at Dr Gandhi’s office. He seems proffesional.Office was very clean,staff friendly,overal 10 stars from me. - Aug 13, 2025 by Elda T.Click to read more
11.5 mi · 575 Underhill Blvd, Ste 200, Syosset, NY 11791
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in acid reflux + 4 more ·
Read bio
Dr. Soren Gandhi is excited to be practicing on Long Island in his hometown of Syosset. He enjoys serving his community and helping guide people to live their healthiest lives. His areas of clinical expertise include colon cancer screening, acid reflux, constipation, and hemorrhoid management. He is...Click to read more
Next available: today

Dr. Robert Hitscherich, MD

Gastroenterologist
4.97
·58 reviews
Great doctor - Dec 16, 2025 by Diana G.Click to read more
9 mi · 1600 Old Country Rd,, Plainview,, NY 11803
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in irritable bowel syndrome (ibs) + 5 more ·
Read bio
Robert M. Hitscherich, MD, is a Board-Certified Gastroenterologist and Internal Medicine physician. He earned his Doctor of Medicine degree from Tufts University. He completed his internship at Cornell University and a three-year medical residency at New York Presbyterian Hospital. Dr. Hitscherich s...Click to read more
Next available: Wed, Dec 2

Dr. Timothy Wong, MD

Gastroenterologist
4.73
·134 reviews
Friendly and professional with clear communication. The staff were friendly and the waiting room was clean and comfortable. - Apr 19, 2025 by Ian S.Click to read more
11.5 mi · 175 Jericho Tpke suite 200, Syosset, NY 11791
In-network · UnitedHealthcare
Accepting new patients · Expertise in chronic indigestion without clear cause + 1 more ·
Read bio
*Please be aware that we have a 24-hour cancellation policy.* Dr. Wong is board certified in Internal Medicine and Gastroenterology. He earned his Doctor of Medicine from the State University of New York, Downstate Medical Center. He completed his internship and residency in Internal Medicine at Be...Click to read more
Next available: Fri, Nov 13

Dr. Christopher Tomaino, MD

Gastroenterologist
4.82
·79 reviews
Doctor listened to my issues and explained the cause. Set up test to confirm. - Jul 27, 2026 by Thomas L.Click to read more
15.5 mi · 153 N Ocean Ave, Patchogue, NY 11772
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in acute stomach inflammation/infection + 5 more ·
Read bio
Christopher Tomaino, MD, a board-certified gastroenterologist at East Coast Gastroenterology and Endoscopy in Patchogue, New York, offers comprehensive care for a variety of gastrointestinal symptoms and disorders. Dr. Tomaino earned his Doctor of Medicine degree from the American University of the ...Click to read more
Next available: today

Rukhsar Asef, PA-C

Physician Assistant
9.5 mi · 760 Sunrise Hwy, West Babylon, NY 11704
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Ms. Rukhsar Asef is a committed and compassionate physician assistant. She practices with Jeffrey Nakhjavan in West Babylon, NY. ​ Ms. Asef earned her bachelor’s degree from the University of Michigan and her master’s degree in physician assistant studies from the School of Health Sciences of Touro ...Click to read more
Next available: today

Dr. Adam Beckerman, MD

Gastroenterologist
4.89
·133 reviews
I am pleased to announce that after my first visit this afternoon I took one dose of the recommended medication and feel a little better. I look forward to my return visit in two weeks. by Kevin K.Click to read more
14.5 mi · 850 Hicksville Rd, Ste 100, Seaford, NY 11783
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in acute gastrointestinal bleeding + 6 more ·
Read bio
Adam H. Beckerman MD is Board Certified in Gastroenterology and Internal Medicine. Dr. Beckerman received the George M. Jaffin Scholarly Activity Award and is an honored member of Top Gastroenterologists. Dr. Beckerman completed his internship and residency at North Shore University Hospital, Corne...Click to read more
Next available: tomorrow

Dr. Theodore Perlman, MD

Gastroenterologist
4.86
·110 reviews
Great Doctor. Takes the time to listen very thorough - Apr 24, 2018 by James S.Click to read more
14.5 mi · 850 Hicksville Rd, Ste 100, Seaford, NY 11783
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Expertise in irritable bowel syndrome (ibs) + 3 more ·
Read bio
Theodore Perlman MD is a Board Certified Gastroenterologist and Internist. He is fluent in Hebrew, English and speaks conversational Hungarian. Dr. Perlman attended Semmelweis University School of Medicine in Hungary. Dr. Perlman completed both his residency and internship at Nassau University Medi...Click to read more
Next available: tomorrow

Dr. Seth Persky, MD

Gastroenterologist
4.84
·32 reviews
11.5 mi · 8 Technology Dr, Ste 101, Setauket- East Setauket, NY 11733
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in irritable bowel syndrome (ibs) + 4 more ·
Read bio
Dr. Seth Persky is an experienced gastroenterologist who practices at Northwell Health Gastroenterology-Eastern. He offers services to people in Wading River and Setauket-East Setauket, NY, and is also affiliated with Mather Hospital. Dr. Persky is committed to providing exceptional, patient-center...Click to read more
Next available: Tue, Jan 5

Dr. William Cohn, MD

Gastroenterologist
4.94
·33 reviews
11.5 mi · 8 Technology Dr, Ste 101, Setauket- East Setauket, NY 11733
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in chronic indigestion without clear cause + 5 more ·
Read bio
Dr. William Cohn is a highly regarded gastroenterologist. He practices at Northwell Health Gastroenterology - Eastern, serving patients in Wading River and Setauket-East Setauket, NY. He earned his medical degree from VCU School of Medicine, where he also completed his residency in internal medicine...Click to read more
Next available: Wed, Jan 6

Dr. Derek Gindi, MD

Gastroenterologist
5.00
·4 reviews
Great experience. From the front desk, MA/Nurse, and Dr. Gindi. Everyone was friendly and welcoming, and Dr. Gindi’s bedside manner was incredible. He took his time to answer all questions and be great feedback. - Jul 22, 2026 by Frank P.Click to read more
11.5 mi · 8 Technology Dr, Ste 101, Setauket- East Setauket, NY 11733
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Derek Gindi is a gastroenterologist dedicated to providing exceptional, patient-centered care for a full spectrum of digestive disorders. He sees patients at Northwell Health Gastroenterology-Eastern in Wading River and Setauket- East Setauket, NY. Dr. Gindi's practice philosophy emphasizes cle...Click to read more
Next available: Wed, Jan 6

Dr. H Cohn, MD

Gastroenterologist
4.87
·39 reviews
The experience at the office was great. I love the doctor. He took his time. Discussed everything and I left very satisfied. - Nov 17, 2025 by Juliana C.Click to read more
11.5 mi · 8 Technology Dr, Ste 101, Setauket- East Setauket, NY 11733
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in acid reflux + 5 more ·
Read bio
Dr. Cohn completed his residency in internal medicine at Boston University Medical Center before beginning his NIH-sponsored fellowship in gastroenterology at Case Western University School of Medicine's flagship teaching hospital, University Hospitals Cleveland Medical Center. Though Dr. Cohn enjoy...Click to read more
Next available: Tue, Jan 12

Dr. Tricia Narine, MD

Family Physician
4.67
·92 reviews
Amazing doctor! She is very thorough with her evaluation of your symptoms and also takes into consideration all factors before finalizing treatment plan. She also ensures all patients feels comfortable and welcome. Would highly recommend!! by JKClick to read more
10.5 mi · 1070 Old Country Rd, Plainview, NY 11803
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time · Expertise in acute urinary tract infection + 4 more ·
Read bio
Dr. Tricia Narine is a highly trusted family physician. She offers in-person services at Heart and Health Medical in Plainview, New York. As part of her formal education and training, Dr. Narine completed a medical degree at Albany Medical College and a residency in family medicine at Jamaica Hospi...Click to read more
Next available: today

Dr. Anthony Razzano, MD

Gastroenterologist
4.95
·223 reviews
I was happy with my appointment and the doctor was very easy to talk to and informative. - Sep 26, 2025 by Michael A.Click to read more
16.5 mi · 2155 Wantagh Ave, Wantagh, NY 11793
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in colonoscopy + 4 more ·
Read bio
Attention: This provider does not facilitate Medicaid bookings through Zocdoc. If you have a Medicaid plan, please contact the office.Click to read more
Next available: tomorrow

Dr. Corina Serer, MD

Gastroenterologist
4.79
·153 reviews
She is caring and Easy to talk to. She will take time to explain things if needed. - Nov 15, 2019 by Kathleen A.Click to read more
14.5 mi · 850 Hicksville Rd, Ste 100, Seaford, NY 11783
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in chronic indigestion without clear cause + 6 more ·
Read bio
Corina Serer, MD, AGF, has been in practice since 2000. She earned her medical degree from Universitatea de Medicina și Farmacie Carol Davila Facultatea de Medicina. She completed her internship at Flushing Hospital Medical Center and her fellowship at New York Hospital Queens. Dr. Serer believes in...Click to read more
Next available: Tue, Nov 24

Dr. Jarred Marshak, MD

Gastroenterologist
4.88
·188 reviews
Very impressed with the doctor, and the office. Glad we picked the office. by LGClick to read more
16.5 mi · 2155 Wantagh Ave, Wantagh, NY 11793
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in colonoscopy + 7 more ·
Read bio
Attention: This provider does not facilitate Medicaid bookings through Zocdoc. If you have a Medicaid plan, please contact the office. Skilled with the intricacies of gastroenterology, Dr. Jarred Marshak received his medical degree from the American University of the Caribbean School of Medicine. S...Click to read more
Next available: Fri, Nov 13

Dr. Asad Butt, MD

Geriatrician
4.62
·817 reviews
Amazing experience. All of the staff was amazing, and understanding. - Jun 1, 2025 by Cameron E.Click to read more
15.5 mi · 369 Middle Country Rd, Coram, NY 11727
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
Asad Butt is a Family Medicine physician at our Highland Valley Medical Care office. He earned his Doctor of Medicine from the University of Toledo and completed his Family Medicine residency at Corewell Health Lakeland Hospitals - St. Joseph Hospital. Dr. Butt also holds a bachelor's degree from Ca...Click to read more
Next available: today

Karen Belleh, PA

Physician Assistant (Gastroenterology)
4.20
·5 reviews
Very good dr. Clear and specific details about the consultation. - Sep 28, 2026 by Ilda J.Click to read more
15.5 mi · 153 N Ocean Ave, Patchogue, NY 11772
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Ms. Karen Belleh is a physician assistant who specializes in gastroenterology. She offers in-person services at East Coast Gastroenterology & Endoscopy in Patchogue, New York. As part of her formal education, Ms. Belleh acquired a master's degree in advanced physician assistant studies from Stony B...Click to read more
Next available: today

Dr. Jordan Rush, MD

Gastroenterologist
4.94
·277 reviews
When they say you'll be seen right away, they really mean it.Click to read more
16.5 mi · 2155 Wantagh Ave, Wantagh, NY 11793
In-network · UnitedHealthcare
Accepting new patients · 17 years of experience · Highly recommended · Excellent wait time · Expertise in acute stomach inflammation/infection + 5 more ·
Read bio
Attention: This provider does not facilitate Medicaid bookings through Zocdoc. If you have a Medicaid plan, please contact the office. **Please include your insurance at time of booking so we can verify prior to your visit.** Dr. Jordan Rush is a gastroenterologist treating patients in Wantagh, ...Click to read more
Next available: Wed, Nov 18

Dr. Carly Barth, MD

Gastroenterologist
4.91
·407 reviews
She is so knowledgeable and excellent bedside manner I will be sure to see her again - Mar 11, 2019 by Latoya M.Click to read more
16.5 mi · 2155 Wantagh Ave, Wantagh, NY 11793
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in acid reflux + 3 more ·
Read bio
Attention: This provider does not facilitate Medicaid bookings through Zocdoc. If you have a Medicaid plan, please contact the office. Certified by the American Board of Internal Medicine, Dr. Carly Barth is a skilled gastroenterologist. Patients visit her at Long Island Gastroenterology Specialist...Click to read more
Next available: Thu, Dec 3

Dr. Kevin Tack, MD

Gastroenterologist
5.00
·1 review
Made me feel better about my situation. - Nov 4, 2026 by John H.Click to read more
22 mi · 1155 Northern Blvd, Manhasset, NY 11030
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in acute stomach inflammation/infection + 5 more ·
Read bio
Dr. Kevin Tack joined Mount Sinai as a Gastroenterologist in 2014. After graduating with his medical degree from Buffalo University, Dr. Tack completed his Internal Medicine residencies at North Shore University Hospital at Manhasset and Memorial Sloan-Kettering Cancer Center. He then finished off h...Click to read more
Next available: today

Dr. Haseeb Ahmed, MD

Gastroenterologist
4.89
·118 reviews
Excellent first visit..Answered all questions and throughly explained procedure and prep work - Jun 20, 2024 by Grace M.Click to read more
22 mi · 2800 Marcus Ave, Ste 201, New Hyde Park, NY 11042
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in acute stomach inflammation/infection + 4 more ·
Read bio
Haseeb Ahmed, MD's practice encompasses all aspects of general gastroenterology and hepatology, including colon cancer screening, GERD, constipation, diarrhea, gas, and abdominal pain. He earned his Doctor of Medicine degree from the State University of New York, Downstate Medical Center, and comple...Click to read more
Next available: today

Dr. Susan Ramdhaney, MD

Gastroenterologist
5.00
·8 reviews
She’s amazing. Glad I found her. - Oct 7, 2026 by Javia W.Click to read more
22 mi · 1155 Northern Blvd, Manhasset, NY 11030
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25 years of experience · Highly recommended · Excellent wait time · Expertise in colonoscopy ·
Read bio
Dr. Susan Ramdhaney began practicing as a Gastroenterologist in 2008 and joined Mount Sinai in 2023. After completing her undergraduate studies at McGill University in Quebec, Dr. Ramdhaney earned her medical degree from St. George's University School of Medicine in Grenada. She then completed her r...Click to read more
Next available: today

Dr. Eric Zhao, MD

Gastroenterologist
5.00
·22 reviews
Very professional, fast visit, Dr. Zhao was very clear with my concern. - Oct 7, 2026 by Leny H.Click to read more
23 mi · 450 Northern Blvd, Great Neck, NY 11021
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Eric Zhao is a gastroenterologist committed to providing thoughtful, patient-centered care for a wide range of digestive and liver conditions. He earned his medical degree from Rutgers New Jersey Medical School, completed his internal medicine residency at Rutgers Robert Wood Johnson, and went o...Click to read more
Next available: today

Dr. Jacqueline Forman, MD

Gastroenterologist
4.84
·102 reviews
This is a thoughtful and thorough doctor who provided great insight and clear next steps. I would recommend highly. - Nov 25, 2025 by Giana R.Click to read more
22 mi · 310 E Shore Road, Suite 206, Great Neck, NY 11023
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in irritable bowel syndrome (ibs) + 3 more ·
Read bio
Attention: This provider does not facilitate Medicaid bookings through Zocdoc. If you have a Medicaid plan, please contact the office.Click to read more
Next available: tomorrow

Jenna Sonnenberg, RN, NP

Nurse Practitioner (Gastroenterology)
4.97
·33 reviews
Excelente atención would definitely recommend - Apr 17, 2026 by Glenda R.Click to read more
11.5 mi · 8 Technology Dr, Ste 101, Setauket- East Setauket, NY 11733
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Ms. Jenna Sonnenberg is a skilled adult nurse practitioner. She provides care at Northwell Health Gastroenterology - Eastern in Wading River and Setauket-East Setauket, NY. She earned her bachelor's degree from UNM Hospital and her master's degree in adult nurse practitioner from Stony Brook Univer...Click to read more
Next available: Fri, Jan 1

Dr. Lay Acharya, MD

Internist
4.83
·191 reviews
It was great quick visit and very professional and informational. by MOClick to read more
19.5 mi · 137 Willis Ave, Ste 110, Mineola, NY 11501
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in high cholesterol + 2 more ·
Read bio
Dr. Lay Acharya is an experienced internist. She practices at Northeast Primary Care Physicians in Mineola, NY. She earned her bachelor’s degree from New York University. Dr. Acharya completed her medical degree at the Medical University of the Americas and her residency at Augusta University. Boa...Click to read more
Next available: today

Dr. Harold Lipsky, MD

Gastroenterologist
4.73
·113 reviews
Friendly doctor who seemed knowledgable and caring. - Nov 25, 2025 by Judy K.Click to read more
23.5 mi · 360 Merrick Rd, Ste 320, Lynbrook, NY 11563
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Excellent wait time · Expertise in gastroenteritis + 6 more ·
Read bio
Attention: This provider does not facilitate Medicaid bookings through Zocdoc. If you have a Medicaid plan, please contact the office. DR. HAROLD LIPSKY is Board Certified in Gastroenterology and Internal Medicine. A native of Brooklyn, N.Y., he attended SUNY Downstate Medical School. He completed ...Click to read more
Next available: today

Dr. Howard Rattner, MD

Gastroenterologist
4.91
·76 reviews
Dr. Rattner listened to all of my concerns & answered all of my questions. He’s very caring and kind. - Jul 23, 2025 by Regina P.Click to read more
22 mi · 233 E Shore Rd, Ste 101, Great Neck, NY 11023
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in irritable bowel syndrome (ibs) + 4 more ·
Read bio
Attention: This provider does not facilitate Medicaid bookings through Zocdoc. If you have a Medicaid plan, please contact the office.Click to read more
Next available: Wed, Nov 11

Dr. Chandhini Ramaiah, MD

Gastroenterologist
4.68
·47 reviews
Very professional and listening to your complaints. - Feb 5, 2025 by Ronald B.Click to read more
22.5 mi · 560 Northern Blvd, Great Neck, NY 11021
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Excellent wait time
Next available: tomorrow

Dr. Mikhail Grzhibek, MD

Primary Care Doctor
4.80
·40 reviews
Very friendly, the doctor really took the time to get to know me.Click to read more
17.5 mi · 285 Sills Rd Bldg 4, Ste D, East Patchogue, NY 11772
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 23 years of experience · Excellent wait time · Expertise in underactive thyroid + 9 more ·
Read bio
Dr. Mikhail Grzhibek is a primary care doctor who sees patients in person at his private practice in East Patchogue, NY. He welcomes people with common illnesses, chronic diseases, mental health issues, and minor injuries that affect their quality of life. Dr. Grzhibek also provides virtual consult...Click to read more
Next available: today

Dr. David Kadosh, MD

Gastroenterologist
4.85
·26 reviews
This place was great I was seen so quickly the doctor knew exactly what tests to be ordered and I like that he was thorough. I am going back to Dr. David! - Dec 11, 2025 by Angelica D.Click to read more
24.5 mi · 241-02 Northern Blvd, 1st Fl, Douglaston, NY 11362
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. David Kadosh is a gastroenterologist at Northwell Health Gastroenterology - Central in Douglaston, NY. He is affiliated with the Long Island Jewish Medical Center and the North Shore University Hospital. As part of his educational training, Dr. Kadosh acquired his medical degree from Technion-I...Click to read more
Next available: tomorrow

Alexander Salcedo, PA

Physician Assistant
4.40
·75 reviews
The doctor was great, the actual visit was great, but I will never schedule another appointment so long as he's with this health group. They are AWFUL. They told me to call in after my bloodwork to ask about the results, because I may not need to come in for a follow-up appt. So I called in and aske...Click to read more
19.5 mi · 135 Main St, Hempstead, NY 11550
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
Read bio
"Mr. Alexander Salcedo is a skilled and dedicated physician assistant serving the Hempstead, NY community. At Suffolk Health Hempstead, he provides comprehensive consultations and follow-up care for a wide range of health needs. Mr. Salcedo is committed to preventive care, early detection, and pati...Click to read more
Next available: today

Dr. Arthur Talansky, MD

Gastroenterologist
4.88
·72 reviews
Doctor’s professionalism and accommodating staff. - Mar 25, 2025 by JUSTINIANO M.Click to read more
22 mi · 233 E Shore Rd, Ste 101, Great Neck, NY 11023
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in gastroenteritis + 7 more ·
Read bio
Attention: This provider does not facilitate Medicaid bookings through Zocdoc. If you have a Medicaid plan, please contact the office.Click to read more
Next available: Mon, Nov 16

Dr. Alan Sloyer, MD

Gastroenterologist
4.97
·68 reviews
Everyone was friendly. Easy check in and check out. Very clear instructions. Dr was very sweet nd had great bedside manners. - Sep 30, 2025 by Barbara H.Click to read more
22 mi · 233 E Shore Rd, Ste 101, Great Neck, NY 11023
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in diverticulosis (outpouchings) of intestine + 8 more ·
Read bio
Attention: This provider does not facilitate Medicaid bookings through Zocdoc. If you have a Medicaid plan, please contact the office. Dr. Sloyer is an award-winning photographer specializing in travel, landscape, and street photography. He has been fortunate to travel to unique destinations and ex...Click to read more
Next available: Mon, Nov 16

Avigail Itzkowitz, APRN, NP

Nurse Practitioner (Gastroenterology)
5.00
·25 reviews
Receptionist not helpful for a new patient.Click to read more
15 mi · 187 Veterans Blvd, Massapequa, NY 11758
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Attention: This provider does not facilitate Medicaid bookings through Zocdoc. If you have a Medicaid plan, please contact the office. Ms. Avigail Itzkowitz is a committed nurse practitioner specializing in gastroenterology. She practices at Gastrointestinal Care of Long Island, PC, in Massapequa, ...Click to read more
Next available: Tue, Nov 24

Dr. Donald Palmadessa, MD

Gastroenterologist
4.95
·43 reviews
He explained himself thoroughly,and also was a good listener. - Jan 14, 2026 by Marietta M.Click to read more
24.5 mi · 241-02 Northern Blvd, 1st Fl, Douglaston, NY 11362
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 7 more ·
Read bio
Dr. Donald Palmadessa is a highly regarded gastroenterologist. He practices at Northwell Health Gastroenterology- Central in Douglaston, NY. He also visits Long Island Jewish Medical Center and North Shore University Hospital as an affiliate. Dr. Palmadessa earned his medical degree and residency i...Click to read more
Next available: tomorrow

Dr. Frederick Rozenshteyn, MD

Gastroenterologist
4.00
·1 review
20 mi · 32 Strawberry Hill Ct 4th Fl, Ste 6, Stamford, CT 06902
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
Read bio
Dr. Rozenshteyn grew up in northern New Jersey before moving to the Boston area for college at Brandeis University, followed by medical school at Tufts University School of Medicine. After medical school, he moved to New York City to complete his internal medicine training at Mount Sinai Beth Israel...Click to read more
Next available: Mon, Jan 25
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Frequently asked questions

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

On average, patients who use Zocdoc can search for a Gastroenterologist in Commack 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 Commack who accept UnitedHealthcare insurance and make an appointment online.

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

Zocdoc lets you search specifically for a Gastroenterologist in Commack 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 Commack?

Zocdoc is a free online service that helps patients find UnitedHealthcare Gastroenterologists in Commack and book appointments instantly. You can search for UnitedHealthcare Gastroenterologists in Commack 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 Commack who takes UnitedHealthcare insurance?

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

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

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

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

You can use Zocdoc to find UnitedHealthcare Gastroenterologists in Commack 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 Commack?

Gastroenterologists in Commack 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 Commack 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 Commack 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 Commack who sees patients during the weekend?

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

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        Zocdoc›Gastroenterologists›Long Island, NY›Commack, NY›UnitedHealthcare