Dr. Joseph M. Duva, MD | Riverhead, NY | Gastroenterology

.about .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Joseph Duva is a gastroenterologist and internal medicine physician who earned his medical degree from the Icahn School of Medicine at Mount Sinai. He completed his residency at Nassau University Medical Center and has been practicing medicine for nearly five decades. Dr. Duva speaks English and brings extensive experience to his practice in digestive health and general internal medicine.

Dr. Duva is affiliated with Peconic Bay Medical Center and practices in Riverhead, New York. He specializes in treating conditions such as hemorrhoids, colon polyps, and diverticular disease. His expertise includes performing colonoscopy procedures and both upper and lower gastrointestinal endoscopy. Patients have given him an average rating of 4.1 out of 5 stars on Vitals.

AI-generated from data on this provider profile.

accepting new patients
4.1

33 Ratings
48 years of experience
speaks English
Nassau University Medical Center
7 written reviews
2 specialties
11 areas of expertise
2 board certifications
1 hospital affiliation
3 office locations
Male

33 ratings & reviews

Sort:

Showing 1 to 7 of 7 reviews

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr Duva and his PA Kathy Brown are the most caring doctors I've ever had. When suffering with pain from what turned out to be a diaphragmatic hernia, Dr Duva called me several times and contacted a thoracic surgeon to do the repair. I am so grateful.

November 9th, 2022

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Exceptional doctor. Called (back in 2000) after he removed a polyp to calm any fears I had. Repeated colonoscopies showed no problems. Dr. Duva is a gem!

July 27th, 2016

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Amazing practice. All the doctors and RNs are patient, kind and knowledgable. They go above and beyond to make sure you're comfortable.

March 12th, 2015

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

No one should go to this doctor. He has no integrity, performs tests that may not be needed but does so to make money and appease the patients. He funnels his patients to ELIH ambulatory care but does not supervise the care so nurses call patients and give them orders that do not coincide with their cases. They do not even know the names of the patients, tell them to discontinue drugs abruptly in a way that can be life threatening to the patient. This doctor does not care about his patients- just exploits them to make money. It is disgraceful,

August 16th, 2014

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

very Kind and caring. will be my new Dr. for sure.

June 28th, 2011

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I recently had an endoscopy and colonoscopy with Dr. Duva and can only say his caring and gentleness made me wish other doctors were the same.

March 22nd, 2011

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Everyone is nervous about a colonoscopy. I choose Dr. Duva from my Doctors recommendation and his experience as a Castle Connolly Doctor. Everyone at his office was so kind and friendly. I only met Dr. Duva minutes before my procedure and he kissed me hello on my check. I felt so at ease and confident in the 15 minute procedure. I was given cookies and juice immediately after. I felt fine and was NO BIG DEAL !!!! Cleansing is not big deal you still can have soup and NO Stomach pains. Whole process is PAIN FREE so relax and get checked to keep yourself healthy !!! Trust me, its NO BIG DEAL !!

March 7th, 2011

Joseph Duva And Gary Rosenbaum Md Medical Group

887 Old Country Rd Ste ARiverhead, NY 11901

Tel: (631) 727-6122

Mon9:00 am - 5:00 pm

Tue9:00 am - 5:00 pm

Wed9:00 am - 5:00 pm

Thu9:00 am - 5:00 pm

Fri9:00 am - 5:00 pm

SatClosed

SunClosed

East End Endoscopy

36 Osprey AveRiverhead, NY 11901

Tel: (631) 574-8660

Mon8:00 am - 5:00 pm

Tue8:00 am - 5:00 pm

Wed8:00 am - 5:00 pm

Thu8:00 am - 5:00 pm

Fri8:00 am - 5:00 pm

SatClosed

SunClosed

Peconic Bay Medical Center

1 Heroes WayRiverhead, NY 11901

Tel: (631) 548-6000


Dr. Joseph Michael Duva, MD	Dr. Michael Seth Rosman, MD	Dr. Michael Dann, MD	Dr. Weidan Zhao, MD
Gastroenterology	Gastroenterology	Gastroenterology	Gastroenterology
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.1 (33 Ratings)	5 (6 Ratings)	5 (8 Ratings)	5 (4 Ratings)
48 Years of Experience	10 Years of Experience	22 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English		Speaks English	Speaks English
Riverhead , NY	NEW YORK , NY	NEW YORK , NY	NEW YORK , NY
Med School: Icahn School Of Medicine At Mount Sinai	Med School: New York University School Of Medicine	Med School: State University of New York	Med School: University of Toledo
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Accepts Medicare

Abdominal Pain
Acid Reflux Disease (Gastroesophageal Reflux / GERD)
Acid Reflux Disease (GERD)
Celiac Disease
Colonoscopy
Constipation
Hemorrhoids
Hepatitis C
Internal Medicine
Irritable Bowel Syndrome (IBS)
Ulcerative Colitis

MEDICAL LICENSE

Medical Doctor, New York, 2027, Active

EDUCATION & TRAINING

Residency

Nassau University Medical Center

Medical School

Icahn School Of Medicine At Mount SinaiGraduated in 1978

Christina Marie Glauber
Nurse Practitioner
| Stony Brook, NY
(0)
Dr. Umair Ali
Critical Care Medicine
7 Years Exp | Stony Brook, NY
(0)
Serpil Ates
Nurse Practitioner
| East Setauket, NY
(0)
Dr. Walter Johans Morales Borrero
Diagnostic Radiology
11 Years Exp | Stony Brook, NY
(0)
Sybil Ann Oommen
Nurse Practitioner
| Stony Brook, NY
(0)
Dr. Stephen Haoru Liang
Critical Care Medicine
4 Years Exp | Stony Brook, NY
(0)
Dr. Neeraj A Katriyar, MD
Critical Care Medicine
27 Years Exp | Patchogue, NY
(1)
Dr. Belliny Phaeton, MD
Pediatrics
8 Years Exp | Stony Brook, NY
(0)
Dr. Jamie Katlyn Deguzman Cabigas
Pediatrics
2 Years Exp | Stony Brook, NY
(0)
Hayley Elizabeth Jacobsen
Nurse Practitioner
| Stony Brook, NY
(0)

What languages does Dr. Joseph Duva speak?: Dr. Joseph Duva speaks English.
Which hospitals is Dr. Joseph Duva affiliated with?: Dr. Joseph Duva is affiliated with Peconic Bay Medical Center.
Does Dr. Joseph Duva accept my insurance?: You can see the insurance plans that Dr. Joseph Duva accepts on their Vitals profile.
Does Dr. Joseph Duva accept virtual/telehealth appointments?: Dr. Joseph Duva has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Joseph Duva accepting new patients?: Dr. Joseph Duva is accepting new patients on Vitals. View Dr. Joseph Duva's profile on Vitals to make an appointment.

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.

Copyright © 2026 Vitals Consumer Services, LLC. US Patent No. 8, 694, 441. All Rights Reserved.
As more fully set forth in this website's terms of use . (1) nothing contained on or offered by or through this website should be construed as medical advice and should not be relied upon for medical diagnosis or treatment. Vitals Consumer Services, LLC ("Vitals"). the provider of this website, does not recommend or endorse any particular healthcare provider whose information or ratings appear on this website; and (2) Vitals has granted you a limited license to access and use this website for your own noncommercial use. You are not permitted to copy, reproduce, distribute, transmit, mirror, frame, scrape, extract, wrap, create derivative works of, reverse engineer, decompile or disassemble any part or aspect of this website.