Sunny Pak, M.D.
NPI 1891980165 · Family Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sunny Pak, M.D. is a Family Medicine Physician provider in San Francisco, CA (NPI 1891980165).
Provider details
- NPI number
- 1891980165
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A113552 (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
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 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 141 | 24 |
| Losartan Potassium | 116 | 17 |
| Amlodipine Besylate | 105 | 19 |
| Metoprolol Succinate | 48 | — |
| Apixabanbrand: Eliquis | 38 | — |
| Furosemide | 36 | — |
| Alendronate Sodium | 32 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-10
- Last updated
- 2013-08-28
Frequently asked questions
- What is Sunny Pak's NPI number?
- Sunny Pak's National Provider Identifier (NPI) is 1891980165, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sunny Pak's specialty?
- Sunny Pak is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sunny Pak located?
- Sunny Pak's practice location on file with NPPES is 1490 Mason St, San Francisco, CA 94133-4222.
- What is Sunny Pak's phone number?
- The practice phone number listed in the NPPES registry for Sunny Pak is (415) 364-7600.
- Does Sunny Pak accept Medicare?
- Sunny Pak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sunny Pak's NPI active?
- Yes — Sunny Pak's NPI (1891980165) is active in the NPPES registry as of the last update on 2013-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.