William E. Rosner, M.D.
Internal Medicine Physician · West Haven, CT
William E. Rosner, M.D. is an internal medicine physician with a practice address in West Haven, Connecticut, and NPI 1114961083, issued on Jun 15, 2006. Check the license (Connecticut 21674, as entered in NPPES) on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William E. Rosner
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 21674 CT
Self-reported in NPPES; status is on the state search - Practice location
- 755 Campbell Ave, West Haven, CT 06516
- Phone
- (203) 931-2828
- Enumerated
- Jun 15, 2006
- Record last updated
- Mar 13, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (203) 931-2830
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 755 Campbell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William E. Rosner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 21674Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William E. Rosner among 2,623 internal medicine physician records in Connecticut
William E. Rosner, 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 not. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 52% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2013 · 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).
84 internal medicine physician records list a practice address in West Haven
They are 84 of the 1,356 NPPES records with a practice address in West Haven, and 2,623 internal medicine physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,623 in Connecticut → Every provider in West Haven → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Horatiu Balas, M.D.West Haven, CT 065161720084320
- Christine Cheng, MDWest Haven, CT 065161598753980
- Mark Drabinski, M.D.West Haven, CT 065161811992902
- Benedict Fernando, M.D.West Haven, CT 065161932105624
- Glen Gechlik, MDWest Haven, CT 065161710972393
- Jurgen Holleck, M.D.West Haven, CT 065161811964257
- Avlin Imaeda, MDWest Haven, CT 065161851375612
- Laurence Knoll, MDWest Haven, CT 065161003886649
Common questions
What is William E. Rosner, M.D.'s NPI number?
William E. Rosner, M.D.'s National Provider Identifier (NPI) is 1114961083, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William E. Rosner, M.D. located?
The NPPES record lists a practice address at 755 Campbell Ave, West Haven, CT, 06516. Phone: (203) 931-2828. Providers update this record themselves, so call before visiting.
How can I verify William E. Rosner, M.D.'s license?
NPPES lists Connecticut license number 21674, 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. 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.