DR. WILLIAM N FRIEDMAN (M.D.) – Diagnostic Radiology Physician, NPI 1861480576

DR. WILLIAM N FRIEDMAN (M.D.) is a healthcare provider. based in Madison, Connecticut. specializing in DIAGNOSTIC RADIOLOGY. They hold the professional credentials M.D.. They hold a License No. 030954 (CT). The NPI Number for DR. WILLIAM N FRIEDMAN (M.D.) is 1861480576

Main info

Male
41 Years Of Experience
Accepts Medicare Assignment
Name
DR. WILLIAM N FRIEDMAN (M.D.)
NPI
1861480576
Phone
(203) 494-7095
Address
21 LOVERS LN
Enumeration Date
7 October 2005
Last Update Date
16 February 2020

Doctor Profile

Medical School Name
STATE UNIVERSITY OF NEW YORK DOWNSTATE MEDICAL CENTER
Secondary Phone
2037893000
Graduation Year
1985 (41 years ago)
PAC ID
1254393259
Group Practice PAC ID
9436061736
Professional Enrollment ID
I20041102000413
Address ID
CT065114440NE1450XSTXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

805 DIAGNOSTIC RADIOLOGY in CT

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Provider Addresses for DR. WILLIAM N FRIEDMAN (M.D.)

  • 21, Lovers Lane, Seaview Beach, Madison, South Central Connecticut Planning Region, Connecticut, 06443, United States

    MADISON, CT 064433317

    Phone: (203) 494-7095

    Type: Mailing

  • 111, Goose Lane, Guilford, New Haven County, Connecticut, 06437, United States

    GUILFORD, CT 064375101

    Phone: (203) 453-7200

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-02-14

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20041102000413IDiagnostic RadiologyCTTBD
I20050214000862IDiagnostic RadiologyNYTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
74177Ct scan of abdomen and pelvis with contrast439372$0
71046X-ray of chest, 2 views361347$0
76770Complete ultrasound scan behind abdominal cavity236230$0
71250Ct scan of chest without contrast234213$0
71260Ct scan of chest with contrast149120$0
View full utilization report →

Insurance plans in this area (ZIP 06443)

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Provider's Procedures

DR. WILLIAM N FRIEDMAN (M.D.) performs procedures in DIAGNOSTIC RADIOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
DIAGNOSTIC RADIOLOGYCT71250CT scan chest152146
DIAGNOSTIC RADIOLOGYCT74177CT scan of abdomen and pelvis with contrast147126
DIAGNOSTIC RADIOLOGYCT76830Ultrasound pelvis through vagina2322
DIAGNOSTIC RADIOLOGYCT93971Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers4847

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 9436061736View full group profile
NameSpecialtyState
Interventional Cardiology, Cardiovascular Disease (Cardiology)CT
H E M A T O L O G Y/ O N C O L O G YCT
Internal Medicine, NephrologySC
-CT
-NC
Internal MedicineCT
-CT
Cardiac SurgeryCT
-CT
-CT

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Frequently asked questions

What unique ID ties claims to DR. WILLIAM N FRIEDMAN (M.D.)?
NPI 1861480576 is assigned to DR. WILLIAM N FRIEDMAN (M.D.) under the national enumeration system.
Is DR. WILLIAM N FRIEDMAN (M.D.)'s enrollment marked active?
An active flag here means the NPI record is not in a deactivated state.
What kind of provider is DR. WILLIAM N FRIEDMAN (M.D.)?
The page reflects Diagnostic Radiology Physician for DR. WILLIAM N FRIEDMAN (M.D.). Clinical services aligned with this taxonomy classification.
Does DR. WILLIAM N FRIEDMAN (M.D.) practice in Connecticut?
You will see Madison, Connecticut on file for DR. WILLIAM N FRIEDMAN (M.D.) alongside any extra practice locations.
Is DR. WILLIAM N FRIEDMAN (M.D.) a real provider?
This page reflects official NPPES data for NPI 1861480576. Always confirm identity and privileges with the practice and licensing boards.

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