Jonathan Klahr, MD
NPI 1487738936 · Rheumatology Physician · Cedarhurst, NY
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Klahr, MD is a Rheumatology Physician provider in Cedarhurst, NY (NPI 1487738936).
Provider details
- NPI number
- 1487738936
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 166428 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,293 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 690 | $150 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 537 | $107 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 470 | $9 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 242 | $17 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 144 | $66 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 58 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 271 | 59 |
| Methotrexate Sodiumbrand: Methotrexate | 229 | 56 |
| Losartan Potassium | 179 | 44 |
| Diclofenac Sodium | 92 | 43 |
| Atorvastatin Calcium | 89 | 24 |
| Meloxicam | 85 | 44 |
| Amlodipine Besylate | 82 | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$853 across 44 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jonathan Klahr's NPI number?
- Jonathan Klahr's National Provider Identifier (NPI) is 1487738936, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Klahr's specialty?
- Jonathan Klahr is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Klahr located?
- Jonathan Klahr's practice location on file with NPPES is 660 Central Ave, Cedarhurst, NY 11516-2303.
- What is Jonathan Klahr's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Klahr is (516) 374-7122.
- Does Jonathan Klahr accept Medicare?
- Jonathan Klahr is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Klahr's NPI active?
- Yes — Jonathan Klahr's NPI (1487738936) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.