Derrick Alexander Lam, MD
Geriatric Medicine (Internal Medicine) Physician · Danbury, CT
Derrick Alexander Lam, MD is a geriatric medicine (internal medicine) physician with a practice address in Danbury, Connecticut, and NPI 1740841899, issued on Jun 27, 2019. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Derrick Alexander Lam
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 036.160299 IL
Self-reported in NPPES; status is on the state search - Practice location
- 120 Main St FL 3, Danbury, CT 06810
- Phone
- (203) 743-9760
- Enumerated
- Jun 27, 2019
- Record last updated
- Jun 28, 2023
- Fax
- (203) 743-3411
- Medicare enrollment
- Enrolled (PECOS I20240124003275); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 104 in Connecticut → Look up another NPI →
Also registered at 120 Main St FL 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Omar Bashir, MDStudent in an Organized Health Care Education/Training Program1801591664
- Umar Farid, MDStudent in an Organized Health Care Education/Training Program1790583128
- Pooya HazeghStudent in an Organized Health Care Education/Training Program1225975352
Verify Derrick Alexander Lam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
346 Medicare Part D claims for 97 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium24 claims
- Rosuvastatin Calcium19 claims
- Amlodipine Besylate18 claims
- Fluticasone Propionate18 claims
- Jardiance14 claims
- Metformin Hcl14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Connecticut Institute For Communities IncDanbury, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derrick Alexander Lam among 104 geriatric medicine (internal medicine) physician records in Connecticut
Derrick Alexander Lam, MD is one of 104 geriatric medicine (internal medicine) physician records with a practice address in Connecticut. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 93% of them.
- NPI issued2019 · 93% of these records are older, 5% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2018 · median 1998 among the 68 with a school on file
- Record last updated2023 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Connecticut
There are 104 geriatric medicine (internal medicine) physician records in Connecticut.
All 104 in Connecticut → Every provider in Danbury → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Joseph Herbin, MDFairfield, CT 068251417910928
- Iwona Lacka, M.DNorwalk, CT 068501477868958
- Joseph Demayo, M.D.Middlebury, CT 067621720211444
- Edward Berman, M.D.Ridgefield, CT 068771326082538
- Barney Spivack, MDWestport, CT 068801326116948
- Thomas Ashley, MDStamford, CT 069021932624236
- Tzivia Moreen, MDStamford, CT 069051447417795
- Shoshana Streiter, M.D.Waterbury, CT 067081346685252
Common questions
What is Derrick Alexander Lam, MD's NPI number?
Derrick Alexander Lam, MD's National Provider Identifier (NPI) is 1740841899, issued on Jun 27, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Derrick Alexander Lam, MD located?
The NPPES record lists a practice address at 120 Main St FL 3, Danbury, CT, 06810. Phone: (203) 743-9760. Providers update this record themselves, so call before visiting.
How can I verify Derrick Alexander Lam, MD's license?
Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Derrick Alexander Lam, MD prescribe under Medicare Part D?
In 2024, Derrick Alexander Lam, MD had 346 Medicare Part D claims for 97 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.