Willa Chen, MD, MPH
NPI 1497496244 · Family Medicine Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Willa Chen, MD, MPH is a Family Medicine Physician provider in Oakland, CA (NPI 1497496244).
Provider details
- NPI number
- 1497496244
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Female
- Sole proprietor
- No
- License
- A189668 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 46 | 18 |
| Amlodipine Besylate | 30 | 13 |
| Omega-3 Acid Ethyl Esters | 28 | — |
| Losartan Potassium | 23 | 11 |
| Finasteride | 21 | — |
| Metoprolol Succinate | 18 | — |
| Empagliflozin |
Practice location
Mailing address
Additional practice locations (1)
- 455 Oconnor Dr Ste 250San Jose, CA 95128-1644Phone: (408) 283-7767
Registry dates
- Enumerated
- 2022-04-05
- Last updated
- 2025-09-18
- Certified
- 2025-09-18
Frequently asked questions
- What is Willa Chen's NPI number?
- Willa Chen's National Provider Identifier (NPI) is 1497496244, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Willa Chen's specialty?
- Willa Chen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Willa Chen located?
- Willa Chen's practice location on file with NPPES is 350 Hawthorne Ave Rm 2316, Oakland, CA 94609-3108.
- What is Willa Chen's phone number?
- The practice phone number listed in the NPPES registry for Willa Chen is (510) 869-6883.
- Does Willa Chen accept Medicare?
- Willa Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Willa Chen's NPI active?
- Yes — Willa Chen's NPI (1497496244) is active in the NPPES registry as of the last update on 2025-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.