Nancy J. Brown, MD
Internal Medicine Physician · New Haven, CT
Nancy J. Brown, MD is an internal medicine physician with a practice address in New Haven, Connecticut, and NPI 1720187156, issued on Sep 22, 2006. Check the license (Connecticut 64677, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Nancy J. Brown
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 64677 CT
MD19938 TN
Self-reported in NPPES; status is on the state search - Practice location
- 800 Howard Ave, New Haven, CT 06519
- Phone
- (203) 436-9928
- Enumerated
- Sep 22, 2006
- Record last updated
- Feb 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 800 Howard Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nancy J. Brown in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 64677Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $220,390.97
6 payments; by number, the most common kind was consulting fee; the largest payer was Alnylam Pharmaceuticals Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Nancy J. Brown among 2,623 internal medicine physician records in Connecticut
Nancy J. Brown, MD 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 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 52% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2020 · 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).
329 internal medicine physician records list a practice address in New Haven
They are 329 of the 9,793 NPPES records with a practice address in New Haven, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in New Haven → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Oluremi AliyuNew Haven, CT 065191023083771
- Tracy Battaglia, M.D.New Haven, CT 065191174508543
- Sarwat Chaudhry, MDNew Haven, CT 065191225011448
- Matthew Ellman, MDNew Haven, CT 065191215919642
- David Fiellin, MDNew Haven, CT 065191194700666
- Joanne Foodim, MDNew Haven, CT 065191780663237
- Sally Haskell, MDNew Haven, CT 065191336119411
- Janet Henrich, MDNew Haven, CT 065191679556807
Common questions
What is Nancy J. Brown, MD's NPI number?
Nancy J. Brown, MD's National Provider Identifier (NPI) is 1720187156, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nancy J. Brown, MD located?
The NPPES record lists a practice address at 800 Howard Ave, New Haven, CT, 06519. Phone: (203) 436-9928. Providers update this record themselves, so call before visiting.
How can I verify Nancy J. Brown, MD's license?
NPPES lists Connecticut license number 64677, 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.
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.