Gary Yen, MD
NPI 1497844351 · Family Medicine Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Yen, MD is a Family Medicine Physician provider in Ann Arbor, MI (NPI 1497844351).
Provider details
- NPI number
- 1497844351
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301078383 (MI)
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
20 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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 45 | 23 |
| Amlodipine Besylate | 22 | 12 |
| Lisinopril | 21 | — |
| Metoprolol Succinate | 18 | — |
| Losartan Potassium | 16 | — |
| Lovastatin | 12 | — |
| Carvedilol Phosphatebrand: Carvedilol Er | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-11
- Last updated
- 2019-12-03
Frequently asked questions
- What is Gary Yen's NPI number?
- Gary Yen's National Provider Identifier (NPI) is 1497844351, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Yen's specialty?
- Gary Yen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Yen located?
- Gary Yen's practice location on file with NPPES is 1801 Briarwood Cir, Ann Arbor, MI 48108-3347.
- What is Gary Yen's phone number?
- The practice phone number listed in the NPPES registry for Gary Yen is (734) 998-7390.
- Does Gary Yen accept Medicare?
- Gary Yen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Yen's NPI active?
- Yes — Gary Yen's NPI (1497844351) is active in the NPPES registry as of the last update on 2019-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.