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Gastroenterology

Jeffrey K. Klingenstein, MD

Sees patients in Rego Park, NY · New York

Summary

Jeffrey K. Klingenstein, MD (Gastroenterology) is enrolled with Medicare at 1 practice location in Rego Park, NY. NPI 1215948310. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(718) 533‑7900 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Jeffrey K. Klingenstein, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

1Practice location
GastroenterologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
51Years since medical school (graduated 1975)
Boston University School Of MedicineMedical school
MaleGender (as listed)
Greater New York Gastroenterology LLPGroup practice

Quick answers

Where does Jeffrey K. Klingenstein see patients?
Medicare's clinician data lists 1 practice location in Rego Park, NY. Call before your visit to confirm the address.
What is Jeffrey K. Klingenstein's specialty?
Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
Does Jeffrey K. Klingenstein accept Medicare assignment?
Yes. Medicare's clinician data says Jeffrey K. Klingenstein accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Jeffrey K. Klingenstein offer telehealth?
Medicare's clinician data says Jeffrey K. Klingenstein offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Jeffrey K. Klingenstein?
(718) 533-7900, as listed in official Medicare / NPI Registry data.
What is Jeffrey K. Klingenstein's NPI number?
1215948310. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Jeffrey K. Klingenstein is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Jeffrey K. Klingenstein as a member of this group (CMS data updated 2026-10-02).

  • Greater New York Gastroenterology LLP5 clinicians in the group

Specialties

Find other Gastroenterology doctors in New York →

Other gastroenterologists in Rego Park

Clinicians with the same Medicare primary specialty in Rego Park, NY — not a recommendation.

All gastroenterologists in Rego Park →

Clinician information

CredentialMD
Medical schoolBoston University School Of Medicine
Graduation year1975
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1215948310
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians