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Internist, Gastroenterologist (digestive)
20 years of experience

Video profile
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).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Jeffrey Gretz is Excellent. Dr. Gretz has been reviewed by 6 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.8
Promptness 4.1
Courteous Staff 4.8
Accurate Diagnosis 4.1
Bedside Manner 3.8
Spends Time with Me 3.8
Follows Up After Visit 3.4

Specialties & Research

Dr. Jeffrey Gretz, 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. Gretz graduated from Eastern Virginia Medical School, Norfolk. He has 2 awards.

Fellow of the year award university of florida/department of internal medicine
Patients' Choice Award (2014)


Dr. Gretz has 3 hospital affiliations:

  • Champlain Valley Physicians Hospital Medical Ctr 
  • Aventura Hospital And Medical Center 
  • Parkway Regional Medical Center 


  • Hebrew

> > > > Dr. Jeffrey Gretz, MD

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Additional Information
Dr. Jeffrey Efi Gretz MD is a male Internist, has 20 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Jeffrey E. Gretz practice?
Dr. Jeffrey Gretz has 1 office location.
Dr. Jeffrey Gretz practices Internal Medicine and Gastroenterology near Plattsburgh, NY.
See Plattsburgh Internists and Plattsburgh Gastroenterologists.