NPPES file of Aug 9, 2026

Ann Cooper, D.O.

Emergency Medicine Physician · Northampton, MA

Ann Cooper, D.O. is an emergency medicine physician with a practice address in Northampton, Massachusetts, and NPI 1265451694, issued on Jul 18, 2006. Check the license (Massachusetts 228515, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265451694
Name
Ann Cooper
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
228515 MA
Self-reported in NPPES; status is on the state search
Practice location
325B King St, Northampton, MA 01060
Phone
(413) 387-4101
Enumerated
Jul 18, 2006
Record last updated
Jun 27, 2024
Fax
(413) 387-4119
Medicare enrollment
Enrolled (PECOS I20061027000261); accepts Medicare assignment
Medical or professional school
New York College Of Osteo Medicine Of New York Institute Of Technology, 2001
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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Also registered at 325B King St

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

  1. Elizabeth Armstrong, M.D.Internal Medicine Physician1881626786
  2. Maureen Callahan, NPFamily Nurse Practitioner1497633036
  3. Vilma Carlone, MDEndocrinology, Diabetes & Metabolism Physician1962459339
  4. Kyle Cooper, MDCardiovascular Disease Physician1053313197
  5. Janet Curley, LICSWClinical Social Worker1376964775
  6. Kristin Dardano, MDObstetrics & Gynecology Physician1942384359

Verify Ann Cooper in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 228515
    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 Massachusetts license search

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49% fewer Medicare Part D claims than the average emergency medicine physician in 2024

115 Medicare Part D claims for 101 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Ann Cooper115
  2. Specialty average226

Most prescribed

  1. Prednisone15 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 5 group practices

  1. Athol Memorial Hospital IncorporatedAthol, MA
  2. Baystate Medical Practices IncSpringfield, MA
  3. Henry Heywood Memorial HospitalGardner, MA
  4. Mass General Brigham Medical Group Western Massachusetts IncNorthampton, MA
  5. Vituity-Massachusetts PLLCSpringfield, MA

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

Ann Cooper among 1,829 emergency medicine physician records in Massachusetts

Ann Cooper, D.O. is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 82% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2001 · median 2011 among the 1,200 with a school on file
  • Record last updated2024 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

23 emergency medicine physician records list a practice address in Northampton

They are 23 of the 1,816 NPPES records with a practice address in Northampton, and 1,829 emergency medicine physician records in Massachusetts.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Jacob Chapman, M.D.Northampton, MA 010601790821338
  2. Donald Chiulli, M.D.Northampton, MA 010601932179660
  3. Raymond Conway, M.D.Northampton, MA 010601235100579
  4. Adrian Daul, M.D.Northampton, MA 010601942339882
  5. Mary Jane Dinneen, MDNorthampton, MA 010601104925866
  6. Stephen Eipper, MDNorthampton, MA 010601770652661
  7. Tae Kim, DONorthampton, MA 010601538322417
  8. Tor Krogius, M.D.Northampton, MA 010601992786842

Common questions

What is Ann Cooper, D.O.'s NPI number?

Ann Cooper, D.O.'s National Provider Identifier (NPI) is 1265451694, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ann Cooper, D.O. located?

The NPPES record lists a practice address at 325B King St, Northampton, MA, 01060. Phone: (413) 387-4101. Providers update this record themselves, so call before visiting.

How can I verify Ann Cooper, D.O.'s license?

NPPES lists Massachusetts license number 228515, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ann Cooper, D.O. prescribe under Medicare Part D?

In 2024, Ann Cooper, D.O. had 115 Medicare Part D claims for 101 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions 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.