Lilian Chan, MD
NPI 1548521289 · Family Medicine Physician · Martinez, CA
Enrolled with Medicare as Order and Referring Only - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lilian Chan, MD is a Family Medicine Physician provider in Martinez, CA (NPI 1548521289).
Provider details
- NPI number
- 1548521289
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A137387 (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
14 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 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 77 | 29 |
| Lisinopril | 45 | 21 |
| Amlodipine Besylate | 41 | 17 |
| Metformin Hcl | 34 | 15 |
| Gabapentin | 31 | 11 |
| Diclofenac Sodium | 23 | — |
| Omeprazole | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-05-30
- Last updated
- 2016-01-25
Frequently asked questions
- What is Lilian Chan's NPI number?
- Lilian Chan's National Provider Identifier (NPI) is 1548521289, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lilian Chan's specialty?
- Lilian Chan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lilian Chan located?
- Lilian Chan's practice location on file with NPPES is 2500 Alhambra Ave, Martinez, CA 94553-3156.
- What is Lilian Chan's phone number?
- The practice phone number listed in the NPPES registry for Lilian Chan is (925) 370-5646.
- Does Lilian Chan accept Medicare?
- Lilian Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lilian Chan's NPI active?
- Yes — Lilian Chan's NPI (1548521289) is active in the NPPES registry as of the last update on 2016-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.