Walter Champion, M.D.
NPI 1811257975 · Diagnostic Radiology Physician · Nashua, NH
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Walter Champion, M.D. is a Diagnostic Radiology Physician provider in Nashua, NH (NPI 1811257975).
Provider details
- NPI number
- 1811257975
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 18652 (NH)
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
14 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
2,171 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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 240 | $39 |
| X-Ray of Chest, 2 Views71046 | 182 | $11 |
| X-Ray of Chest, 1 View71045 | 166 | $8 |
| X-Ray of Chest, 2 Views71046 | 149 | $32 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 104 | $87 |
| Ct Scan of Upper Spine Without Contrast72125 | 91 | $46 |
| Ct Scan of Blood Vessels of Chest With Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-05-23
- Last updated
- 2018-06-01
Frequently asked questions
- What is Walter Champion's NPI number?
- Walter Champion's National Provider Identifier (NPI) is 1811257975, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Champion's specialty?
- Walter Champion is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Walter Champion located?
- Walter Champion's practice location on file with NPPES is 8 Prospect St, Nashua, NH 03060.
- What is Walter Champion's phone number?
- The practice phone number listed in the NPPES registry for Walter Champion is (603) 577-3377.
- Does Walter Champion accept Medicare?
- Walter Champion is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Walter Champion's NPI active?
- Yes — Walter Champion's NPI (1811257975) is active in the NPPES registry as of the last update on 2018-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.