NPPES file of Aug 9, 2026

Walter Louis Champion, M.D.

Diagnostic Radiology Physician · Nashua, NH

Walter Louis Champion, M.D. is a diagnostic radiology physician with a practice address in Nashua, New Hampshire, and NPI 1811257975, issued on May 23, 2012. Check the license (New Hampshire 18652, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1811257975
Name
Walter Louis Champion
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
18652 NH
Self-reported in NPPES; status is on the state search
Practice location
8 Prospect St, Nashua, NH 03060
Phone
(603) 577-3377
Enumerated
May 23, 2012
Record last updated
Jun 1, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(603) 577-3387
Medicare enrollment
Enrolled (PECOS I20180627001754); accepts Medicare assignment
Medical or professional school
Morehouse School Of Medicine, 2012
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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8 nearest diagnostic radiology physician records → All 201 in New Hampshire → Look up another NPI →

Also registered at 8 Prospect St

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

  1. Douglas Allen, D.O.Anesthesiology Physician1528098837
  2. Allisa Alpert, DOInternal Medicine Physician1851880447
  3. Tahani Alturkistani, M.DDiagnostic Radiology Physician1396975496
  4. Valerie Atkins, MDNeonatal-Perinatal Medicine Physician1073605218
  5. Brett BakerSurgery Physician1700272333
  6. Chad Bandosz, PAPhysician Assistant1912635178

Verify Walter Louis Champion in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Hampshire Board of Medicine
    Search for license 18652    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 New Hampshire 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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Bills Medicare through one group practice

  1. Atrius Health IncDedham, MA

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

Walter Louis Champion among 201 diagnostic radiology physician records in New Hampshire

Walter Louis Champion, M.D. is one of 201 diagnostic radiology physician records with a practice address in New Hampshire. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 83% of them.

  • NPI issued2012 · 83% of these records are older, 14% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2012 · median 2003 among the 140 with a school on file
  • Record last updated2018 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in New Hampshire

There are 201 diagnostic radiology physician records in New Hampshire.

All 201 in New Hampshire → Every provider in Nashua → Diagnostic Radiology Physician nationwide →

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Robert Bertagna, MDNashua, NH 030601417935958
  2. Robert Carbonneau, M.D.Nashua, NH 030601134107469
  3. Ophelia Chang, MDNashua, NH 030601588635148
  4. Jeffrey Chapdelaine, MDNashua, NH 030601386615037
  5. John De Persio, MDNashua, NH 030601487679270
  6. Mark Goldshein, M.D.Nashua, NH 030601255327870
  7. Nicholas Hoff, MDNashua, NH 030601659342368
  8. Brian Hu, MDNashua, NH 030601275505034

Common questions

What is Walter Louis Champion, M.D.'s NPI number?

Walter Louis Champion, M.D.'s National Provider Identifier (NPI) is 1811257975, issued on May 23, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Walter Louis Champion, M.D. located?

The NPPES record lists a practice address at 8 Prospect St, Nashua, NH, 03060. Phone: (603) 577-3377. Providers update this record themselves, so call before visiting.

How can I verify Walter Louis Champion, M.D.'s license?

NPPES lists New Hampshire license number 18652, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.