- Mount Sinai Doctors
- Treats Adults
- Accepting New Patients
Michael Gerdis, MD
Gastroenterology
About Me
Dr. Michael Gerdis has practiced Gastroenterology for over 30 years and joined Mount Sinai as a Gastroenterologist in 2017. After graduating with his medical degree from NYU School of Medicine, Dr. Gerdis completed his residency in Internal Medicine at St. Luke's Hospital. He then moved to Long Island Jewish Medical Center for his fellowship in Gastroenterology. With his board certification by the American Board of Gastroenterology, Dr. Gerdis has patients visit him for a wide spectrum of medical needs, including hemorrhoids, diarrhea, nausea, stomach ulcers, and blood in stool. He is also bilingual and can also communicate with patients in both English and Spanish.
In his professional community, Dr. Gerdis is an active member of the American Medical Association, the American College of Gastroenterology, and the NY Society for Gastroenterology and Endoscopy.
Language
English, Spanish
Position
LECTURER | Medicine, Gastroenterology
Hospital Affiliations
- Mount Sinai Queens
- The Mount Sinai Hospital
Clinical Focus
- Acid Reflux / Heartburn
- Anal Fissure
- Black Stool / Melena
- Blood in Stool
- Cirrhosis
- Colon Cancer Screening
- Colonoscopy
- Colorectal Cancer Screening
- Constipation
- Crohn's Disease
- Diarrhea
- Gallstones
- Gastroenterology
- Gastroscopy
- Hemorrhoids
- Hepatitis B
- Inflammatory Bowel Disease
- Irritable Bowel Syndrome
- Liver Biopsy
- Narrow / Closed Esophagus
- Narrow Stomach / Intestine Passage
- Nausea and Vomiting
- Stomach Pain
- Ulcerative Colitis
Education
MD, New York University School of Medicine
Residency, Internal Medicine
St. Luke's-Roosevelt Hospital Center
Fellowship, Gastroenterology
Long Island Jewish Medical Center
Certifications
American Board of Internal Medicine
Insurance Information
Accepted insurance may vary by the doctor’s office location. Please contact the office directly to obtain the most up-to-date insurance information.
- 1199 SEIU
- AETNA - Commercial
- AETNA - Medicare
- CIGNA Healthcare
- Centivo
- Elderplan
- EmblemHealth - GHI-PPO
- EmblemHealth - HIP
- EmblemHealth - HIP-Medicare
- Empire Blue Cross Blue Shield - Commercial/Exchange
- Empire Blue Cross Blue Shield - Medicare
- Fidelis Health Care
- HealthFirst Medicare
- Horizon NJ
- Magnacare-Health Care
- Medicare - NJ
- Medicare - NY
- Multiplan PHCS
- Oscar
- Oxford - Freedom and Liberty
- Senior Whole Health
- United Health Care - Commercial
- United Health Care - Empire Plan
- United Health Care - Oxford Care
- United Health Care - Top Tier
- VNSNY Choice Medicare
- WellCare Health Plan
Physicians who provide services at hospitals and facilities in the Mount Sinai Health System might not participate in the same health plans as those Mount Sinai hospitals and facilities (even if the physicians are employed or contracted by those hospitals or facilities).
Information regarding insurance participation and billing by this physician may be found on this page, and can also be obtained by contacting this provider directly. Because physicians insurance participation can change, the insurance information on this page may not always be up-to-date. Please contact this physician directly to obtain the most up-to-date insurance information.
Insurance and health plan networks that the various Mount Sinai Health System hospitals and facilities participate in can be found on the Mount Sinai Health System website.
Patient Experience Star Ratings and Comments
The Patient Experience Star Rating reflects our patients’ perception of how well their Mount Sinai provider communicated with them during an office visit. The Star Rating is based on patient responses to three questions on a patient experience survey, a standardized questionnaire sent to verified patients and distributed by a third party vendor, Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score.
Care Provider’s Explanation
Care Provider’s Concern
Likelihood to Recommend Care Provider
My Dr. is excellent and has been with me for years.
Good
Dr. Gerdis has all the qualities that one should expect from their primary care physician. He listens to my questions. He offers suggestions when necessary. In addition, he responds the next day with my bloodwork by phone. In addition, he overall manner puts me at ease and makes me feel that I am in good, caring hands.
Industry Relationships
Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device, biotechnology companies, and other outside entities to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their outside financial relationships.
Below are financial relationships with industry reported by Dr. Gerdis during 2024 and/or 2025. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.
Outside Employment
- Drug Trials of America
Mount Sinai’s faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.