Quick answers
- Where does Jonathan B. Klahr see patients?
- Medicare's clinician data lists 1 practice location in Cedarhurst, NY. Call before your visit to confirm the address.
- What is Jonathan B. Klahr's specialty?
- Medicare lists Rheumatology as the primary specialty, and also Internal Medicine.
- Does Jonathan B. Klahr accept Medicare assignment?
- Medicare's clinician data says Jonathan B. Klahr may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Jonathan B. Klahr?
- (516) 374-7122, as listed in official Medicare / NPI Registry data.
- What is Jonathan B. Klahr's NPI number?
- 1487738936. 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 Jonathan B. Klahr is enrolled with Medicare (CMS data updated 2026-10-02).
- 660 Central Ave, Suite 2Cedarhurst, NY 11516 (516) 374‑7122
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albert Einstein College Of Medicine Of Yeshiva University |
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1487738936 |
| Corrections | Report 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians