Browse specialtiesSee all specialties A-Z
Chiropractors
Dentists
Dermatologists
Ear, Nose & Throat Doctors
Endocrinologists
Eye Doctors
OBGYNs
Ophthalmologists
Optometrists
Orthopedic Surgeons
Podiatrists
Primary Care Doctors
Psychiatrists
Psychologists
Therapist-Counselors
Discover
Are you a top doctor or health service?
For providers
Discover
Are you a top doctor or health service?
East End Gastroenterology & Hepatology
4.89
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.89
Wait time
4.89
Bedside manner
4.91
Insurances accepted
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Emblem Health
Medicare
Book an appointment for freeThe office partners with Zocdoc to schedule appointments
Scheduling details
All procedures
See if they’re in-network
Available appointments
All provider availability
East End Gastroenterology & Hepatology
287 Wading River Rd, Unit 2, Manorville, NY 11949
Today, Aug 31 – Sun, Sep 13
Insurances accepted
99% of patients have successfully booked with these insurancesAetnaBlueCross BlueShieldCignaEmblem HealthMedicare
2 office locations
East End Gastroenterology & Hepatology (1 of 2)
715 Roanoke Ave, Bldg B, Riverhead, NY 11901
East End Gastroenterology & Hepatology (2 of 2)
287 Wading River Rd, Unit 2, Manorville, NY 11949
1 of 2
Providers at East End Gastroenterology & Hepatology (0)
No results
This practice has no doctors that match your search criteria.
East End Gastroenterology & Hepatology
** EAST END GASTROENTEROLOGY & HEPATOLOGY TREATS PATIENTS 16 YEARS OLD AND UP**
Our mission at East End Gastroenterology & Hepatology is to help you when you need it most, even if it’s on a Sunday. Whether you need colonoscopy, upper endoscopy, capsule endoscopy or Bravo pH, we are here for you when you need us most.
At East End Gastroenterology & Hepatology, you’ll discover a highly skilled, board-certified digestive specialist, Mark J. Coronel, MD, who provides high-quality, comprehensive GI care and service. We’re located on a multidisciplinary medical campus with access to a lab, imaging center, endoscopy center and urgent care.
That’s because we believe that your care should not only be high-quality and comprehensive, it should be convenient and accessible for you.
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.89
Wait time
4.89
Bedside manner
4.91
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
431 reviews
Most relevant
Dr Coronel is a friendly knowledgeable provider. His office is clean, organized and the staff is knowledgeable and welcoming
November 11, 2025Susan L.Verified patient
I am a patient of Dr Coronel. And I brought my husband here for his illness. Yes I would recommend him very highly.
February 24, 2025Mark M.Verified patient
very nice office, very professional and clean, answers all questions, and staff is wonderful!!!!
December 10, 2025Denise D.Verified patient
What a great experience!! Dr. Coronel is a wonderful doctor. He was kind, compassionate snd attentive. He is now my doctor.
March 19, 2024Karen E.Verified patient
Perfect bedside manner. Comfortable office. The staff was easy to deal with. Highest recommendation.
May 19, 2025Initials hidden
Dr. Coronel was extremely nice. He was very thorough and listened to what I had to say. He gave me advice and was helpful.
February 5, 2019Peter E.Verified patient
Very knowledgeable, compassionate and professional
June 25, 2026caitlin J.Verified patient
Very prompt with Appointment. No waiting time. Very professional office and friendly staff. I highly recommend him.
September 1, 2016Initials hidden
Everything went well, and the doctor was very professional and very nice. No waiting time. Very friendly staff.
Robert S.Verified patient
Great experience doctor listened and answered all my questions and concerns
April 30, 2025Jacqueline R.Verified patient
I thought the Dr was very good.
He explained things,
And
Was very nice
And
Very knowledgeable.
December 1, 2023Ann D.Verified patient
Dr. Coronel had excellent bedside manner. He made me feel very comfortable. I highly recommend him.
July 28, 2020Isabelle R.Verified patient
The doctor was thoughtful, interested and extremely informative. It was a most pleasant visit.
May 30, 2022Devy F.Verified patient
Great staff and Dr Coronel was very welcoming being a 1st time visitor to a Gastroenterologist.
Kevin L.Verified patient
He is just a great guy who doesnt think he is better than you. He makes you feel safe.
August 14, 2023Randy P.Verified patient
Very friendly and knowledgeable.
Staff was also excellent and took care of me right away.
March 21, 2022Fernando C.Verified patient
I love this doctor. Been going to him for a few years now. Highly recommend
August 19, 2024Christine C.Verified patient
I was so impressed with my whole experience. I am recommending to my friends and family!
September 23, 2021Debra S.Verified patient
Clean, comfortable office - efficient staff. Dr. on time, respectful and listened well.
December 15, 2021Collette C.Verified patient
Very friendly and took care of what I needed the appointment for.
February 10, 2025Maryann F.Verified patient
He was very professional and very nice. Attended to my needs. Would highly recommend
December 10, 2020Christine C.Verified patient
Very professional .
Staff was pleasant and Dr.Cornel was very nice.
Thanks so much.
Wayne M.Verified patient
Felt very comfortable with him and liked his manner and advice
September 6, 2024Margaret S.Verified patient
The staff was very friendly, the office was clean and the Doctor was great.
February 24, 2022Azad A.Verified patient
I was very satisfied with my visit and I would see Dr. Coronell again
May 23, 2023Vita G.Verified patient
Very nice doctor... right on time and wants to help solve health problems.
Initials hidden
Friendly staff !
Professional health care provider !
December 11, 2024Jhon S.Verified patient
great MD.... no nonsense --- no nurses, staff etc..just the good doc
March 19, 2021Duane R.Verified patient
Was put at ease, the doctor was extremely helpful & reassuring.
MMVerified patient
Nice Dr. and staff. On-line booking was easy and accurate.
August 3, 2021Richard M.Verified patient
Very thorough and nice , spoke his concerns and made a plan
September 25, 2017Elizabeth D.Verified patient
Insightful, concerned and quick to schedule procedures!
September 20, 2016William S.Verified patient
Friendly environment, short wait and great doctor
May 31, 2021Sarah K.Verified patient
Very nice competent practitioner who was willing to listen and explore options. Very happy to have found this practitioner
July 2, 2026Susan F.Verified patient
The staff was very friendly and helpful! Kim was amazing. She repeated my concerns and was an active listener.
August 19, 2026Ella G.Verified patient
This location is fantastic the staff is super friendly, very knowledgeable, and attentive to your needs and concerns.
June 9, 2026Sue Ellen P.Verified patient
Very pleasant atmosphere with open honest communication about my situation. Looking forward to my next visit.
Initials hidden
Amazing. No wait took me right in. Had a good conversation with the doctor. Would definitely recommend
January 20, 2026Jason H.Verified patient
Good place nice bedside manner. I’d go back. I’d recommend to a friend.
July 14, 2026Carl D.Verified patient
Understanding my needs at a time of feeling sick and in pain.
July 7, 2026Susan K.Verified patient
I booked a last minute appointment, everyone was very nice and the office was clean! Highly recommend
September 10, 2024Deanna G.Verified patient
Excellent experience. Definitely will go back to this provider.
April 13, 2026Irene H.Verified patient
Kim was prompt, kind, & extremely knowledgeable with many strong recomendations. So happy to have found her.
PKVerified patient
I was very thankful, and will definitely be going to her for any of my gastrointestinal needs.
December 11, 2024Initials hidden
Kim has a Awesome bedside manor she's very professional
April 16, 2026Claudia V.Verified patient
Very professional, explained everything clearly, answered all of my questions.
Initials hidden
Awesome, professional and I definitely highly recommended
Evan R.Verified patient
My visit was amazing. Kim answered all my questions. I felt very comfortable with her.
RRVerified patient
I felt very comfortable comunicating my health issues with another female.
MSVerified patient
She was very thorough. Really listened to me & didnt feel rushed at all.
RPVerified patient
Loading...