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Internist, Gastroenterologist (digestive)
36 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).

Learn more about Dr. Jeffrey Klingenstein:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (6)

The overall average patient rating of Dr. Jeffrey Klingenstein is Good. Dr. Klingenstein has been reviewed by 16 patients who have provided 6 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 3.3
Courteous Staff 3.9
Accurate Diagnosis 3.1
Bedside Manner 3.0
Spends Time with Me 3.0
Follows Up After Visit 2.8

Specialties & Research

Dr. Jeffrey Klingenstein, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 6 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Colon Cancer
  • Constipation
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Klingenstein graduated from Boston University .


Dr. Klingenstein has 12 hospital affiliations:

  • Ny Hospital Medical Ctr Of Queens,The 
  • North Shore/Long Island Jewish Hospital System - Franklin Hospital Med Ctr 


  • Tagalog
  • Spanish
  • Romanian
  • Italian
  • Greek
  • German
  • French

> > > > Dr. Jeffrey Klingenstein, MD

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Additional Information
Dr. Jeffrey Kenneth Klingenstein MD is a male Internist, has 36 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Jeffrey K. Klingenstein practice?
Dr. Jeffrey Klingenstein has 3 office locations.
Dr. Jeffrey Klingenstein practices Internal Medicine and Gastroenterology near Astoria, NY.
Additional practice locations include: Sunnyside, NY and Rego Park, NY.
See Astoria Internists and Astoria Gastroenterologists.