NPPES file of Aug 9, 2026

Martin Walder, D.C.

Chiropractor · Amherst, MA

Martin Walder, D.C. is a chiropractor with a practice address in Amherst, Massachusetts, and NPI 1629137237, issued on Dec 8, 2006. Check the license (Massachusetts 2034, as entered in NPPES) with the Massachusetts board that licenses this profession; 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
1629137237
Name
Martin Walder
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
2034 MA
Self-reported in NPPES; status is on the state search
Practice location
228 Triangle St Ste 4, Amherst, MA 01002
Phone
(413) 549-1500
Enumerated
Dec 8, 2006
Record last updated
Jul 21, 2022
Medicare enrollment
Enrolled (PECOS I20060424000263); accepts Medicare assignment
Medical or professional school
National College Of Chiropractic, 1994
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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Verify Martin Walder in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 2034
    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
Find the Massachusetts 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. Amherst Family Chiropractic PCAmherst, MA

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

Martin Walder among 1,577 chiropractor records in Massachusetts

Martin Walder, D.C. is one of 1,577 chiropractor records with a practice address in Massachusetts. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 55% newer
  • In a Medicare fileYes · 17% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated1994 · median 1999 among the 713 with a school on file
  • Record last updated2022 · 79% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Chiropractor providers in Massachusetts

There are 1,577 chiropractor records in Massachusetts.

The 8 chiropractor records with the nearest ZIP codes

  1. Howard Ewert, DCAmherst, MA 010021780736009
  2. Virginia Harper, D.C.Amherst, MA 010021922292937
  3. Robert Kane, D.C.Amherst, MA 010021467455352
  4. Jacqueline Katz, DCAmherst, MA 010021821073123
  5. Jason Potash, DCAmherst, MA 010021023682242
  6. Jeanette Wilburn, D.C.Amherst, MA 010021386614105
  7. David Boyden, D.C.Agawam, MA 010011538195474
  8. Gary Gorman, D.C.Agawam, MA 010011528087822

Common questions

What is Martin Walder, D.C.'s NPI number?

Martin Walder, D.C.'s National Provider Identifier (NPI) is 1629137237, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Martin Walder, D.C. located?

The NPPES record lists a practice address at 228 Triangle St Ste 4, Amherst, MA, 01002. Phone: (413) 549-1500. Providers update this record themselves, so call before visiting.

How can I verify Martin Walder, D.C.'s license?

NPPES lists Massachusetts license number 2034, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

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.

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.