Browse Health
Internist, Gastroenterologist (digestive)
35 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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Specialties & Research

Dr. Mark Friedman, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 5 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Friedman graduated from New York University.


Dr. Friedman has 8 hospital affiliations:

  • Ny Hospital Medical Ctr Of Queens,The 
  • University Hospital of Brooklyn at Long Island Hospital 


  • Chinese
  • Hebrew
  • Spanish
  • Burmese

> > > > Dr. Mark Friedman, MD

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Additional Information
Dr. Mark Sander Friedman MD is a male Internist, has 35 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Mark S. Friedman practice?
Dr. Mark Friedman has 6 office locations.
Dr. Mark Friedman practices Internal Medicine and Gastroenterology near Forest Hills, NY.
Additional practice locations include: Fresh Meadows, NY and New Hyde Park, NY.
See Forest Hills Internists and Forest Hills Gastroenterologists.