William Friedman, M.D.
NPI 1861480576 · Diagnostic Radiology Physician · Guilford, CT
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Friedman, M.D. is a Diagnostic Radiology Physician provider in Guilford, CT (NPI 1861480576).
Provider details
- NPI number
- 1861480576
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 030954 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,252 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 2 Views71046 | 270 | $11 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 270 | $87 |
| Ct Scan of Chest Without Contrast71250 | 205 | $52 |
| Ct Scan of Chest With Contrast71260 | 199 | $54 |
| Complete Ultrasound Scan Behind Abdominal Cavity76770 | 172 | $36 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 128 | $87 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-07
- Last updated
- 2020-02-16
- Certified
- 2020-02-16
Frequently asked questions
- What is William Friedman's NPI number?
- William Friedman's National Provider Identifier (NPI) is 1861480576, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Friedman's specialty?
- William Friedman is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Friedman located?
- William Friedman's practice location on file with NPPES is 111 Goose Ln, Guilford, CT 06437-5101.
- What is William Friedman's phone number?
- The practice phone number listed in the NPPES registry for William Friedman is (203) 453-7200.
- Does William Friedman accept Medicare?
- William Friedman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Friedman's NPI active?
- Yes — William Friedman's NPI (1861480576) is active in the NPPES registry as of the last update on 2020-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.