Anna Zhang, MD
NPI 1174159172 · Internal Medicine Physician · Mountain View, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Zhang, MD is a Internal Medicine Physician provider in Mountain View, CA (NPI 1174159172).
Provider details
- NPI number
- 1174159172
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A178629 (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
6 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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 67 | 36 |
| Amlodipine Besylate | 49 | 24 |
| Lisinopril | 40 | 18 |
| Losartan Potassium | 39 | 17 |
| Alendronate Sodium | 27 | 11 |
| Levothyroxine Sodium | 26 | 11 |
| Allopurinol | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-21
- Last updated
- 2023-08-29
- Certified
- 2023-08-29
Frequently asked questions
- What is Anna Zhang's NPI number?
- Anna Zhang's National Provider Identifier (NPI) is 1174159172, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Zhang's specialty?
- Anna Zhang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Anna Zhang located?
- Anna Zhang's practice location on file with NPPES is 555 Castro St, Mountain View, CA 94041-2009.
- What is Anna Zhang's phone number?
- The practice phone number listed in the NPPES registry for Anna Zhang is (650) 903-3000.
- Does Anna Zhang accept Medicare?
- Anna Zhang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Zhang's NPI active?
- Yes — Anna Zhang's NPI (1174159172) is active in the NPPES registry as of the last update on 2023-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.