Yun Lam, M.D.
NPI 1134100894 · Internal Medicine Physician · Boston, MA
Yun Lam, M.D. is a Internal Medicine Physician provider in Boston, MA (NPI 1134100894).
Provider details
- NPI number
- 1134100894
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 81549 (MA)
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 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 314 | 155 |
| Amlodipine Besylate | 295 | 157 |
| Losartan Potassium | 104 | 58 |
| Metformin Hcl | 95 | 49 |
| Lisinopril | 92 | 39 |
| Metoprolol Succinate | 91 | 40 |
| Simvastatin | 75 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-09
- Last updated
- 2009-12-10
Frequently asked questions
- What is Yun Lam's NPI number?
- Yun Lam's National Provider Identifier (NPI) is 1134100894, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yun Lam's specialty?
- Yun Lam is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yun Lam located?
- Yun Lam's practice location on file with NPPES is 252 Tremont St, Boston, MA 02116-5603.
- What is Yun Lam's phone number?
- The practice phone number listed in the NPPES registry for Yun Lam is (617) 636-8871.
- Is Yun Lam's NPI active?
- Yes — Yun Lam's NPI (1134100894) is active in the NPPES registry as of the last update on 2009-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.