John Szumowski, M.D., M.P.H.
NPI 1750558615 · Infectious Disease Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Szumowski, M.D., M.P.H. is a Infectious Disease Physician provider in San Francisco, CA (NPI 1750558615).
Provider details
- NPI number
- 1750558615
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.P.H.
- Sex
- Male
- Sole proprietor
- No
- License
- 128301 (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 tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 201 | 22 |
| Atorvastatin Calcium | 195 | 34 |
| Dolutegravir Sodiumbrand: Tivicay | 111 | 13 |
| Tamsulosin Hcl | 96 | 19 |
| Metformin Hclbrand: Metformin Hcl Er | 94 | 12 |
| Metoprolol Succinate | 77 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-09
- Last updated
- 2025-08-12
- Certified
- 2025-08-12
Frequently asked questions
- What is John Szumowski's NPI number?
- John Szumowski's National Provider Identifier (NPI) is 1750558615, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Szumowski's specialty?
- John Szumowski is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Szumowski located?
- John Szumowski's practice location on file with NPPES is 4150 Clement St, San Francisco, CA 94121-1563.
- What is John Szumowski's phone number?
- The practice phone number listed in the NPPES registry for John Szumowski is (415) 221-4810.
- Does John Szumowski accept Medicare?
- John Szumowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Szumowski's NPI active?
- Yes — John Szumowski's NPI (1750558615) is active in the NPPES registry as of the last update on 2025-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.