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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Jonathan Klahr, MD

Rheumatology Physician in Cedarhurst, NY · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1487738936

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Registry record

Entity type Individual (Type 1)
Name Jonathan Klahr
Credential MD
Sex Male
Practice address Cedarhurst, NY, 11516
Phone (516) 374-7122
Fax (516) 374-4088
Enumeration date Oct 24, 2006
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 166428 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Jonathan Klahr?
The National Provider Identifier (NPI) for Jonathan Klahr is 1487738936, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jonathan Klahr practice?
The practice location on file with NPPES is in Cedarhurst, NY. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.