Yi-Fen Chen, MD
NPI 1073692711 · Internal Medicine Physician · Santa Clara, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yi-Fen Chen, MD is a Internal Medicine Physician provider in Santa Clara, CA (NPI 1073692711).
Provider details
- NPI number
- 1073692711
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A74978 (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 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 94 | 32 |
| Atenolol | 85 | 25 |
| Lisinopril | 78 | 26 |
| Hydrochlorothiazide | 64 | 22 |
| Simvastatin | 51 | 17 |
| Levothyroxine Sodium | 50 | 16 |
| Metformin Hclbrand: Metformin Hcl Er | 50 | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-03
- Last updated
- 2022-02-16
- Certified
- 2022-02-16
Frequently asked questions
- What is Yi-Fen Chen's NPI number?
- Yi-Fen Chen's National Provider Identifier (NPI) is 1073692711, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yi-Fen Chen's specialty?
- Yi-Fen Chen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yi-Fen Chen located?
- Yi-Fen Chen's practice location on file with NPPES is 710 Lawrence Expy, Santa Clara, CA 95051-5173.
- What is Yi-Fen Chen's phone number?
- The practice phone number listed in the NPPES registry for Yi-Fen Chen is (408) 851-1000.
- Does Yi-Fen Chen accept Medicare?
- Yi-Fen Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yi-Fen Chen's NPI active?
- Yes — Yi-Fen Chen's NPI (1073692711) is active in the NPPES registry as of the last update on 2022-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.