Heather I. Frimmer, MD
Diagnostic Radiology Physician · Norwalk, CT
Heather I. Frimmer, MD is a diagnostic radiology physician with a practice address in Norwalk, Connecticut, and NPI 1003897687, issued on Nov 9, 2005. Check the license (Connecticut 043027, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Heather I. Frimmer
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- 043027 CT
222220 NY
Self-reported in NPPES; status is on the state search - Practice location
- 148 East Ave, Norwalk, CT 06851
- Phone
- (203) 852-9913
- Enumerated
- Nov 9, 2005
- Record last updated
- Jan 17, 2024
- Medicaid ID
- 001430272 CT
- Medicare enrollment
- Enrolled (PECOS I20050804000583); accepts Medicare assignment
- Medical or professional school
- Js Weill Medical College, Cornell University, 2000
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 619 in Connecticut → Look up another NPI →
Also registered at 148 East Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Bauman, MDDiagnostic Radiology Physician1669445250
- Debra BergAudiologist1487832077
- Steven Bernstein, MDDiagnostic Radiology Physician1699756023
Verify Heather I. Frimmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 043027Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 4 group practices
- Main Street Radiology AT Bayside LLCRidgefield, CT
- North Shore Hematology Oncology Associates PCPort Jefferson Station, NY
- Radiology Associates OF Main Street PCForest Hills, NY
- Valley Physician Services PCWeston, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Heather I. Frimmer among 619 diagnostic radiology physician records in Connecticut
Heather I. Frimmer, MD is one of 619 diagnostic radiology physician records with a practice address in Connecticut. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 72% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2000 · median 2003 among the 432 with a school on file
- Record last updated2024 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 diagnostic radiology physician records list a practice address in Norwalk
They are 21 of the 1,993 NPPES records with a practice address in Norwalk, and 619 diagnostic radiology physician records in Connecticut.
All 619 in Connecticut → Every provider in Norwalk → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- James Bauman, MDNorwalk, CT 068511669445250
- Steven Bernstein, MDNorwalk, CT 068511699756023
- Lauren Ernberg, MDNorwalk, CT 068511902879596
- David Klein, MDNorwalk, CT 068511427021021
- Ronald Lee, MDNorwalk, CT 068511073587820
- Alan Levine, M.D.Norwalk, CT 068511912970732
- Richard Lisi, MDNorwalk, CT 068511851365969
- Avelino Maitem, MDNorwalk, CT 068511174596902
Common questions
What is Heather I. Frimmer, MD's NPI number?
Heather I. Frimmer, MD's National Provider Identifier (NPI) is 1003897687, issued on Nov 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Heather I. Frimmer, MD located?
The NPPES record lists a practice address at 148 East Ave, Norwalk, CT, 06851. Phone: (203) 852-9913. Providers update this record themselves, so call before visiting.
How can I verify Heather I. Frimmer, MD's license?
NPPES lists Connecticut license number 043027, 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.