Registry data as of Aug 27, 2026

Deirdre Kathman, D.O.

Critical Care Medicine (Internal Medicine) Physician · Hopedale, MA

Deirdre Kathman, D.O. is a critical care medicine (internal medicine) physician with a practice address in Hopedale, Massachusetts, and NPI 1528228889, issued on Jun 11, 2008. Check the license (Massachusetts 245920, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1528228889
Name
Deirdre Kathman
Credential
D.O.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
245920 MA
Self-reported in NPPES; status is on the state search
Practice location
94 Mendon St, Hopedale, MA 01747
Phone
(508) 482-5401
Enumerated
Jun 11, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 94 Mendon St

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

  1. Shahzad Khan, M.D.Pulmonary Disease Physician1396004024
  2. Lisa Malloy, NPNurse Practitioner1316253818
  3. Madhura Manjunath, M.D.Critical Care Medicine (Internal Medicine) Physician1841641925
  4. Michael McCormick, M.D.Pulmonary Disease Physician1063496982
  5. Suzanne Noone, NPAdult Health Nurse Practitioner1730261306
  6. Ryan Shipe, MDInternal Medicine Physician1194943316

Verify Deirdre Kathman 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 245920
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

2.7 times the Medicare Part D claims of the average critical care medicine (internal medicine) physician in 2024

3,007 Medicare Part D claims for 417 beneficiaries, against an average of 1,103 among the 4,049 providers of this specialty who prescribed in Part D. Brand-name drugs were 66% of claims.

  1. Deirdre Kathman3,007
  2. Specialty average1,103

Most prescribed

  1. Trelegy Ellipta504 claims
  2. Albuterol Sulfate Hfa438 claims
  3. Prednisone231 claims
  4. Breztri Aerosphere205 claims
  5. Azithromycin142 claims
  6. Breo Ellipta140 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.

Industry payments in 2024: $67.53

3 payments, mostly food and beverage; the largest payer was Amgen Inc.. The 3,336 providers of this specialty with any payment received $4,158.57 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Deirdre Kathman$67.53
  2. Specialty average$4,158.57

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

2 hospital and facility affiliations

  1. Milford Regional Physician Group, Inc.Hopedale, MA
  2. Umass Memorial Medical Group IncHopedale, MA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

3 critical care medicine (internal medicine) physician records list a Hopedale practice address

They are 3 of the 51 NPPES records with a Hopedale practice address, and 203 critical care medicine (internal medicine) physician records in Massachusetts.

Other critical care medicine (internal medicine) physician records in Massachusetts

  1. Samer Abujaber, MB BCH BAOCambridge, MA1497137558
  2. Ghazwan Acash, M.D.Burlington, MA1710187331
  3. Andrew Admon, MDBoston, MA1275896888
  4. Renu Agarwal, MD FCCPGreat Barrington, MA1639121593
  5. Salvador Albanese, M.D.Woburn, MA1437130630
  6. Marcus Alpert, MDWorcester, MA1205327194
  7. Kathleen Aras-Richard, MDHopedale, MA1710908397
  8. Jean Pierre Assaker, MDBoston, MA1063907111
  9. Elias Baedorf Kassis, M.D.Boston, MA1225358799
  10. Gisela Banauch, M.D.Worcester, MA1366554966

Common questions

What is Deirdre Kathman, D.O.'s NPI number?

Deirdre Kathman, D.O.'s National Provider Identifier (NPI) is 1528228889, issued on Jun 11, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Deirdre Kathman, D.O. located?

The NPPES record lists a practice address at 94 Mendon St, Hopedale, MA, 01747. Phone: (508) 482-5401. Providers update this record themselves, so call before visiting.

How can I verify Deirdre Kathman, D.O.'s license?

NPPES lists Massachusetts license number 245920, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Deirdre Kathman, D.O. prescribe under Medicare Part D?

In 2024, Deirdre Kathman, D.O. had 3,007 Medicare Part D claims for 417 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 1,103. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.