Derrick Lam, MD
NPI 1740841899 · Geriatric Medicine (Internal Medicine) Physician · Danbury, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derrick Lam, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Danbury, CT (NPI 1740841899).
Provider details
- NPI number
- 1740841899
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036.160299 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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 | 24 | 14 |
| Rosuvastatin Calcium | 19 | 12 |
| Amlodipine Besylate | 18 | — |
| Fluticasone Propionate | 18 | 11 |
| Empagliflozinbrand: Jardiance | 14 | — |
| Metformin Hcl | 14 | — |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-06-27
- Last updated
- 2023-06-28
- Certified
- 2023-06-28
Frequently asked questions
- What is Derrick Lam's NPI number?
- Derrick Lam's National Provider Identifier (NPI) is 1740841899, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derrick Lam's specialty?
- Derrick Lam is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Derrick Lam located?
- Derrick Lam's practice location on file with NPPES is 120 Main St Fl 3, Danbury, CT 06810-7834.
- What is Derrick Lam's phone number?
- The practice phone number listed in the NPPES registry for Derrick Lam is (203) 743-9760.
- Does Derrick Lam accept Medicare?
- Derrick Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derrick Lam's NPI active?
- Yes — Derrick Lam's NPI (1740841899) is active in the NPPES registry as of the last update on 2023-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.