Eric Williamson, M.D.
NPI 1881666022 · Diagnostic Radiology Physician · Rochester, MN
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Williamson, M.D. is a Diagnostic Radiology Physician provider in Rochester, MN (NPI 1881666022).
Provider details
- NPI number
- 1881666022
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 61270 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
503 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Ct Scan of Blood Vessels and Grafts of Heart With Contrast75574 | 58 | $113 |
| Ct Scan of Blood Vessels of Abdomen and Pelvis With Contrast74174 | 56 | $340 |
| Ct Scan of Blood Vessels and Grafts of Heart With Contrast75574 | 55 | $266 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 48 | $184 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 45 | $84 |
| Ct Scan of Blood Vessels of Abdomen and Pelvis With Contrast74174 | 32 | $101 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$44 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-02
- Last updated
- 2025-03-04
- Certified
- 2025-03-04
Frequently asked questions
- What is Eric Williamson's NPI number?
- Eric Williamson's National Provider Identifier (NPI) is 1881666022, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Williamson's specialty?
- Eric Williamson is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Williamson located?
- Eric Williamson's practice location on file with NPPES is 200 1st St Sw, Rochester, MN 55905-0001.
- What is Eric Williamson's phone number?
- The practice phone number listed in the NPPES registry for Eric Williamson is (507) 284-2511.
- Does Eric Williamson accept Medicare?
- Eric Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Williamson's NPI active?
- Yes — Eric Williamson's NPI (1881666022) is active in the NPPES registry as of the last update on 2025-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.