Karen E. Brown, M.D.
Internal Medicine Physician · Hamden, CT
Karen E. Brown, M.D. is an internal medicine physician with a practice address in Hamden, Connecticut, and NPI 1285609412, issued on Feb 21, 2006. Check the license (Connecticut 033624, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Karen E. Brown
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 033624 CT
Self-reported in NPPES; status is on the state search - Practice location
- 2440 Whitney Ave, Hamden, CT 06518
- Phone
- (203) 288-9650
- Enumerated
- Feb 21, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (203) 288-9670
- Medicare enrollment
- Enrolled (PECOS I20050601000078); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 2440 Whitney Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sandra Allison, P.A.Medical Physician Assistant1194790329
- Lauren Austin-McClellan, D.CChiropractor1184988479
- Paul Clarke, M.D.Internal Medicine Physician1548292279
- Holly Craig, M.D.Internal Medicine Physician1942275557
- Matthew Dombrow, MDOphthalmology Physician1376798967
- Glen Gitterman, MS, PT, RKT, CSCSPhysical Therapist1962564971
Verify Karen E. Brown in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 033624Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% more Medicare Part D claims than the average internal medicine physician in 2024
5,236 Medicare Part D claims for 639 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 52 claims were for opioids.
Most prescribed
- Atorvastatin Calcium574 claims
- Amlodipine Besylate286 claims
- Levothyroxine Sodium193 claims
- Losartan Potassium174 claims
- Rosuvastatin Calcium129 claims
- Hydrochlorothiazide128 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.
The MIPS final score for 2023 (Medicare payment program): 93.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Northeast Medical Group IncStratford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
35 internal medicine physician records list a practice address in Hamden
They are 35 of the 1,410 NPPES records with a practice address in Hamden, and 2,623 internal medicine physician records in Connecticut.
All 35 in Hamden → All 2,623 in Connecticut → Every provider in Hamden →
Other internal medicine physician records in Connecticut
- Hoda Abdel Salam, M.D.New Britain, CT1144509316
- Gada Abdelhafiz, MDNew London, CT1467649558
- Racha Abi Melhem, MDDerby, CT1902471352
- Gerard Abidor, D.O.Bridgeport, CT1518014539
- Lilyan AbrahamFarmington, CT1447693254
- Richard Abraham, M.D.Canton, CT1023044252
- Odaliz Abreu-Lanfranco, MDNew Haven, CT1538276134
- Kenneth Abriola, MDGlastonbury, CT1083693022
- Florentino Abueg, MDSouthbury, CT1649372558
- Nila Aburto, MDStamford, CT1396325718
Common questions
What is Karen E. Brown, M.D.'s NPI number?
Karen E. Brown, M.D.'s National Provider Identifier (NPI) is 1285609412, issued on Feb 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen E. Brown, M.D. located?
The NPPES record lists a practice address at 2440 Whitney Ave, Hamden, CT, 06518. Phone: (203) 288-9650. Providers update this record themselves, so call before visiting.
How can I verify Karen E. Brown, M.D.'s license?
NPPES lists Connecticut license number 033624, as entered by the provider. 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 Karen E. Brown, M.D. prescribe under Medicare Part D?
In 2024, Karen E. Brown, M.D. had 5,236 Medicare Part D claims for 639 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Karen E. Brown, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.