Harry Lam, MD
NPI 1043455363 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harry Lam, MD is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1043455363).
Provider details
- NPI number
- 1043455363
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A104293 (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
17 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 · 127 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 666 | 259 |
| Amlodipine Besylate | 452 | 192 |
| Losartan Potassium | 381 | 149 |
| Gabapentin | 305 | 127 |
| Lisinopril | 298 | 119 |
| Rosuvastatin Calcium | 262 | 111 |
| Furosemide | 224 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-12-16
- Last updated
- 2021-11-03
- Certified
- 2021-11-03
Frequently asked questions
- What is Harry Lam's NPI number?
- Harry Lam's National Provider Identifier (NPI) is 1043455363, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harry Lam's specialty?
- Harry Lam is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harry Lam located?
- Harry Lam's practice location on file with NPPES is 1520 San Pablo St, Los Angeles, CA 90033-5310.
- What is Harry Lam's phone number?
- The practice phone number listed in the NPPES registry for Harry Lam is (323) 226-7556.
- Does Harry Lam accept Medicare?
- Harry Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harry Lam's NPI active?
- Yes — Harry Lam's NPI (1043455363) is active in the NPPES registry as of the last update on 2021-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.