Stewart Wong, MD
NPI 1235334228 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stewart Wong, MD is a Internal Medicine Physician provider in San Francisco, CA (NPI 1235334228).
Provider details
- NPI number
- 1235334228
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A98757 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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 · 82 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 395 | 127 |
| Amlodipine Besylate | 331 | 107 |
| Losartan Potassium | 254 | 83 |
| Lisinopril | 160 | 50 |
| Simvastatin | 110 | 36 |
| Hydrochlorothiazide | 108 | 32 |
| Metoprolol Tartrate | 100 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-19
- Last updated
- 2022-02-11
Frequently asked questions
- What is Stewart Wong's NPI number?
- Stewart Wong's National Provider Identifier (NPI) is 1235334228, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stewart Wong's specialty?
- Stewart Wong is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stewart Wong located?
- Stewart Wong's practice location on file with NPPES is 2425 Geary Blvd, San Francisco, CA 94115-3358.
- What is Stewart Wong's phone number?
- The practice phone number listed in the NPPES registry for Stewart Wong is (415) 833-3034.
- Does Stewart Wong accept Medicare?
- Stewart Wong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stewart Wong's NPI active?
- Yes — Stewart Wong's NPI (1235334228) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.