Umar Mahmud, M.D.
Internal Medicine Physician · New Britain, CT
Umar Mahmud, M.D. is an internal medicine physician with a practice address in New Britain, Connecticut, and NPI 1205221728, issued on Apr 1, 2015. Check the license (Connecticut 60569, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Umar Mahmud
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 60569 CT
Self-reported in NPPES; status is on the state search - Practice location
- 100 Grand St, New Britain, CT 06052
- Phone
- (860) 224-5661
- Enumerated
- Apr 1, 2015
- Record last updated
- May 29, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180525000460); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 100 Grand St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Casey Aivano, APRNFamily Nurse Practitioner1366050411
- Kelly Alberdi, LCSWClinical Social Worker1750575452
- Farhana Alladin, M.DInternal Medicine Physician1891361101
- Maria Allen, PA-CSurgical Physician Assistant1093034431
Verify Umar Mahmud in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 60569Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
42 Medicare Part D claims for 22 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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 practice group's MIPS final score for 2023 (Medicare payment program): 92.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Hospital OF Central Connecticut AT New Britain General And BradleyNew Britain, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Umar Mahmud among 2,623 internal medicine physician records in Connecticut
Umar Mahmud, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2015 · median 2004 among the 1,646 with a school on file
- Record last updated2018 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
74 internal medicine physician records list a practice address in New Britain
They are 74 of the 1,772 NPPES records with a practice address in New Britain, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in New Britain → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Shailaja Chikoti, M.B., B.S.New Britain, CT 060521134351935
- Camilo Echanique, MDNew Britain, CT 060521174500052
- Sarah Hashmi, M.D.New Britain, CT 060521205156536
- Shiromini Herath, MDNew Britain, CT 060521730235789
- Lawrence Koch, MDNew Britain, CT 060521972581544
- Lucyna Kolakowska, MDNew Britain, CT 060521306979257
- Malgorzata Kowalska-Berger, MDNew Britain, CT 060521760581441
- Thomas Lane, MDNew Britain, CT 060521831176767
Common questions
What is Umar Mahmud, M.D.'s NPI number?
Umar Mahmud, M.D.'s National Provider Identifier (NPI) is 1205221728, issued on Apr 1, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Umar Mahmud, M.D. located?
The NPPES record lists a practice address at 100 Grand St, New Britain, CT, 06052. Phone: (860) 224-5661. Providers update this record themselves, so call before visiting.
How can I verify Umar Mahmud, M.D.'s license?
NPPES lists Connecticut license number 60569, 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 Umar Mahmud, M.D. prescribe under Medicare Part D?
In 2024, Umar Mahmud, M.D. had 42 Medicare Part D claims for 22 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Umar Mahmud, M.D.'s MIPS final score?
The 2023 MIPS final score is 92.6 of 100, reported for the practice group. 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.