NPPES file of Aug 9, 2026

William L. Kasdon, M.D., M.P.H.

Emergency Medicine Physician · Fall River, MA

William L. Kasdon, M.D., M.P.H. is an emergency medicine physician with a practice address in Fall River, Massachusetts, and NPI 1720145857, issued on Jan 1, 2007. Check the license (Massachusetts 35606, 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
1720145857
Name
William L. Kasdon
Credential
M.D., M.P.H.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
35606 MA
Self-reported in NPPES; status is on the state search
Practice location
363 Highland Ave, Fall River, MA 02720
Phone
(508) 679-7425
Enumerated
Jan 1, 2007
Record last updated
Jan 30, 2026
Fax
(508) 679-7279
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 363 Highland Ave

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

  1. Elaine Allendorf, NPOccupational Health Nurse Practitioner1104944115
  2. Helena Almeida, LCSWClinical Social Worker1134421290
  3. Catherine Alteri, ANPFamily Nurse Practitioner1497961148
  4. Sandra Alua, P.A.Physician Assistant1376867176
  5. Emily Alves, PAPhysician Assistant1639511678
  6. Michael Andrescavage, DNP, CRNAStudent in an Organized Health Care Education/Training Program1427943315

Verify William L. Kasdon 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 35606
    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.

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88% fewer Medicare Part D claims than the average emergency medicine physician in 2024

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

  1. William Kasdon27
  2. Specialty average226

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.

William L. Kasdon among 1,829 emergency medicine physician records in Massachusetts

William L. Kasdon, M.D., M.P.H. 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 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 51% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2026 · 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).

30 emergency medicine physician records list a practice address in Fall River

They are 30 of the 3,032 NPPES records with a practice address in Fall River, and 1,829 emergency medicine physician records in Massachusetts.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Neill Barber, M.D.Fall River, MA 027201023089695
  2. Sarah Bernier, M.D.Fall River, MA 027201083695738
  3. Arthur Calvin Carter, M.D.Fall River, MA 027201568557734
  4. Maria Delbeccaro, MDFall River, MA 027201033260468
  5. Nathan Dembowski, MDFall River, MA 027201598260051
  6. Brendan Holmes, MDFall River, MA 027201700451663
  7. Christa Johnson, M.D.Fall River, MA 027201952595761
  8. Peter Kirk, M.D.Fall River, MA 027201811255821

Common questions

What is William L. Kasdon, M.D., M.P.H.'s NPI number?

William L. Kasdon, M.D., M.P.H.'s National Provider Identifier (NPI) is 1720145857, issued on Jan 1, 2007. An NPI identifies a provider in billing; it is not a license.

Where is William L. Kasdon, M.D., M.P.H. located?

The NPPES record lists a practice address at 363 Highland Ave, Fall River, MA, 02720. Phone: (508) 679-7425. Providers update this record themselves, so call before visiting.

How can I verify William L. Kasdon, M.D., M.P.H.'s license?

NPPES lists Massachusetts license number 35606, 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 William L. Kasdon, M.D., M.P.H. prescribe under Medicare Part D?

In 2024, William L. Kasdon, M.D., M.P.H. had 27 Medicare Part D claims; 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.