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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).

Learn more about Dr. Jeffrey Klingenstein:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

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Patient Reviews

  • Currently 2.5 of 4 stars
Patient comments (6)

The overall average patient rating of Dr. Jeffrey Klingenstein is Good. Dr. Klingenstein has been reviewed by 11 patients who have provided 6 comments. The rating is 2.5 out of 4 stars.

Patient Ratings
Ease of Appointment 3.3
  • Currently 3.2857142857143 of 4 stars
Promptness 2.7
  • Currently 2.7142857142857 of 4 stars
Courteous Staff 3.1
  • Currently 3.1428571428571 of 4 stars
Accurate Diagnosis 2.4
  • Currently 2.4285714285714 of 4 stars
Bedside Manner 2.3
  • Currently 2.2857142857143 of 4 stars
Spends Time with Me 2.3
  • Currently 2.2857142857143 of 4 stars
Follows Up After Visit 2.1
  • Currently 2.1428571428571 of 4 stars

Specialties & Research

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

  • He has special expertise in 3 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Colon Cancer
  • Hepatitis C

Education & Awards

Dr. Klingenstein graduated from Boston University .


Dr. Klingenstein has 12 hospital affiliations:

  • Mt Sinai Hospital 
  • Ny Hospital Medical Ctr Of Queens,The 


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

> > > > Dr. Jeffrey Klingenstein, MD

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Additional Information
Dr. Jeffrey Kenneth Klingenstein MD is a male Internist, has 35 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Jeffrey K. Klingenstein practice?
Dr. Jeffrey Klingenstein has 4 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.