Andy Lam, M.D.
NPI 1588043970 · Family Medicine Physician · San Dimas, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andy Lam, M.D. is a Family Medicine Physician provider in San Dimas, CA (NPI 1588043970).
Provider details
- NPI number
- 1588043970
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A145756 (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
11 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 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 439 | 183 |
| Amlodipine Besylate | 294 | 113 |
| Lisinopril | 265 | 112 |
| Simvastatin | 196 | 69 |
| Rosuvastatin Calcium | 170 | 62 |
| Levothyroxine Sodium | 167 | 63 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-05-19
- Last updated
- 2022-05-23
- Certified
- 2022-05-22
Frequently asked questions
- What is Andy Lam's NPI number?
- Andy Lam's National Provider Identifier (NPI) is 1588043970, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andy Lam's specialty?
- Andy Lam is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Andy Lam located?
- Andy Lam's practice location on file with NPPES is 1255 W Arrow Hwy, San Dimas, CA 91773-2340.
- What is Andy Lam's phone number?
- The practice phone number listed in the NPPES registry for Andy Lam is (833) 574-2273.
- Does Andy Lam accept Medicare?
- Andy Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andy Lam's NPI active?
- Yes — Andy Lam's NPI (1588043970) is active in the NPPES registry as of the last update on 2022-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.