NPPES file of Aug 9, 2026

Katherine J. Atkinson, Md, PC in Amherst, MA

This location of Katherine J Atkinson Md bills under NPI 1568598993, an organization record issued on Feb 27, 2007 with the primary taxonomy Internal Medicine Physician. It is one of 2 NPIs registered under this name and one of 2 in Amherst; each clinician who sees you there has their own NPI and license.

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

Organization recordNPPES, Aug 2026
1568598993
Legal name
Katherine J. Atkinson, Md, PC
Entity
Type 2 · organization
Primary taxonomy
Internal Medicine Physician 207R00000X
Practice location
17 RESEARCH DR, Amherst, MA 01002
Phone
413-549-8400
Enumerated
Feb 27, 2007
Record updated
Dec 17, 2025
Authorized official
Owner (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

The other Amherst NPI

  1. Katherine J Atkinson, Md, PC17 RESEARCH DR · issued Nov 16, 20121134463920

9 clinicians CMS lists with Katherine J Atkinson Md in Amherst

  1. Katherine Atkinson, MDFamily Medicine Physician1700849643
  2. Brianna Difronzo, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1669966230
  3. Heidi Foley, MDFamily Medicine Physician1801981493
  4. Jason Potash, DCChiropractor1023682242
  5. Michele Spirko, MDFamily Medicine Physician1558810804
  6. Martha Spiro, FNPFamily Nurse Practitioner1952302986
  7. William Thornton, PMHNPPsychiatric/Mental Health Nurse Practitioner1225842065
  8. Anne Vaillant, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1033114632
  9. Galen Wetterling, DOPsychiatry Physician1104385228

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

All 2 Katherine J Atkinson Md NPIs

Every location registered under this name, in 1 city.

See every location

Checking an organization

  1. Confirm the business with the Massachusetts secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

All taxonomies on this record

  • 101Y00000X Counselor
  • 101YM0800X Mental Health Counselor
  • 106H00000X Marriage & Family Therapist
  • 111N00000X Chiropractor
  • 207Q00000X Family Medicine Physician
  • 207R00000X Internal Medicine Physician
  • 363A00000X Physician Assistant
  • 363L00000X Nurse Practitioner
  • 363LP0808X Psychiatric/Mental Health Nurse Practitioner

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Which Amherst NPI should I use?

Ask the office which NPI it bills under; all 2 Amherst NPIs are registered under the same name.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.