NPPES file of Aug 9, 2026

William N. Friedman, M.D.

Diagnostic Radiology Physician · Guilford, CT

William N. Friedman, M.D. is a diagnostic radiology physician with a practice address in Guilford, Connecticut, and NPI 1861480576, issued on Oct 7, 2005. Check the license (Connecticut 030954, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861480576
Name
William N. Friedman
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
030954 CT
Self-reported in NPPES; status is on the state search
Practice location
111 Goose LN, Guilford, CT 06437
Phone
(203) 453-7200
Enumerated
Oct 7, 2005
Record last updated
Feb 16, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20041102000413); accepts Medicare assignment
Medical or professional school
State University Of New York Downstate Medical Center, 1985
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 111 Goose LN

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kejal Amin, PHARMDOncology Pharmacist1417509225
  2. Muhammad Anwar, MDAnesthesiology Physician1730164922
  3. Susann Boroczky, R.D., CD-NRegistered Dietitian1538388350
  4. Alvin Greenberg, M.D.Specialist1386836849
  5. Daniel Greif, M.D.Cardiovascular Disease Physician1861673691
  6. Jody Heffernan, NPAdult Health Nurse Practitioner1043305402

Verify William N. Friedman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 030954    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 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.

  1. Qualityout of 100 · 30% of the final score75.8
  2. Costout of 100 · 30%51.4
  3. Promoting interoperabilityout of 100 · 25%74.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Yale UniversityNew Haven, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Diagnostic Radiology Physician providers in Connecticut

There are 619 diagnostic radiology physician records in Connecticut.

All 619 in Connecticut → Every provider in Guilford →

Other diagnostic radiology physician records in Connecticut

  1. Sandra Abi Fadel, M.D.New Haven, CT1396308995
  2. Mehmet Adin, M.D.New Haven, CT1508429192
  3. Marco Adly, MDNew Haven, CT1952915860
  4. Anjali Agrawal, M.D.New Haven, CT1427034016
  5. Paul Aiello, M.D.Bridgeport, CT1366447302
  6. Carolyn Ajemian, MDSouthbury, CT1699707018
  7. Samantha Aldred, M.D.New Canaan, CT1194026427
  8. Kasim Ali, MDNew Haven, CT1275876120
  9. Abedalrazaq AlkukhunNew Haven, CT1922456425
  10. Naveed Alvi, MDFarmington, CT1952379000

Common questions

What is William N. Friedman, M.D.'s NPI number?

William N. Friedman, M.D.'s National Provider Identifier (NPI) is 1861480576, issued on Oct 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William N. Friedman, M.D. located?

The NPPES record lists a practice address at 111 Goose LN, Guilford, CT, 06437. Phone: (203) 453-7200. Providers update this record themselves, so call before visiting.

How can I verify William N. Friedman, M.D.'s license?

NPPES lists Connecticut license number 030954, 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.

What is William N. Friedman, M.D.'s MIPS final score?

The 2023 MIPS final score is 73.6 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.