Jonathan Graf, MD
NPI 1487660635 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Graf, MD is a Internal Medicine Physician provider in San Francisco, CA (NPI 1487660635).
Provider details
- NPI number
- 1487660635
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A68479 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
181 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 88 | $132 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 40 | $88 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 24 | $193 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 17 | $92 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 12 | $146 |
Typical Medicare-allowed amounts for these services range $88–$193 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 233 | 59 |
| Methotrexate Sodiumbrand: Methotrexate | 162 | 29 |
| Hydroxychloroquine Sulfate | 81 | 24 |
| Sulfasalazine | 75 | 18 |
| Certolizumab Pegolbrand: Cimzia (2 Pack) | 70 | — |
| Adalimumabbrand: Humira Pen | 58 | — |
| Alendronate Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2025-09-11
Frequently asked questions
- What is Jonathan Graf's NPI number?
- Jonathan Graf's National Provider Identifier (NPI) is 1487660635, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Graf's specialty?
- Jonathan Graf is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Graf located?
- Jonathan Graf's practice location on file with NPPES is 1001 Potrero Ave, San Francisco, CA 94110-3518.
- What is Jonathan Graf's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Graf is (415) 206-8189.
- Does Jonathan Graf accept Medicare?
- Jonathan Graf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Graf's NPI active?
- Yes — Jonathan Graf's NPI (1487660635) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.