William D. Kasimer
Anatomic Pathology Physician · Weymouth, MA
William D. Kasimer is an anatomic pathology physician with a practice address in Weymouth, Massachusetts, and NPI 1265485288, issued on May 19, 2006. Check the license (Massachusetts 60294, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- William D. Kasimer
- Primary taxonomy
- Anatomic Pathology Physician 207ZP0101X
- License number
- 60294 MA
Self-reported in NPPES; status is on the state search - Practice location
- 85 Columbian St, Weymouth, MA 02190
- Phone
- (781) 624-8397
- Enumerated
- May 19, 2006
- Record last updated
- Feb 12, 2026
- Medicare enrollment
- Enrolled (PECOS I20050714000964); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest anatomic pathology physician records → All 277 in Massachusetts → Look up another NPI →
Also registered at 85 Columbian St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Peter Ferlisi, M.D.Anatomic Pathology & Clinical Pathology Physician1467430769
Verify William D. Kasimer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 60294Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 90.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $25.32
1 payment: food and beverage; the largest payer was bioMerieux Inc. The 382 providers of this specialty with any payment received $3,145.53 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Metro South Pathology, Inc.South Weymouth, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William D. Kasimer among 277 anatomic pathology physician records in Massachusetts
William D. Kasimer is one of 277 anatomic pathology physician records with a practice address in Massachusetts. 62% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 49% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1984 · median 2000 among the 167 with a school on file
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0101X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology Physician providers in Massachusetts
There are 277 anatomic pathology physician records in Massachusetts.
All 277 in Massachusetts → Every provider in Weymouth → Anatomic Pathology Physician nationwide →
The 8 anatomic pathology physician records with the nearest ZIP codes
- Madhu Dahiya, M.D.Boston, MA 022151750338489
- Harold Dvorak, M.D.Boston, MA 022151306951454
- Jeffrey Goldsmith, M.D.Boston, MA 022151225143282
- Joel Henderson, MDBoston, MA 022151437165958
- Olivier Nicolas Kocher, M.D.Boston, MA 022151669586566
- Imad Ahmad Nasser, M.D.Boston, MA 022151891735338
- Jeffrey Saffitz, MD, PHDBoston, MA 022151104898451
- Stuart Schnitt, M.D.Boston, MA 022151821035452
Common questions
What is William D. Kasimer's NPI number?
William D. Kasimer's National Provider Identifier (NPI) is 1265485288, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William D. Kasimer located?
The NPPES record lists a practice address at 85 Columbian St, Weymouth, MA, 02190. Phone: (781) 624-8397. Providers update this record themselves, so call before visiting.
How can I verify William D. Kasimer's license?
NPPES lists Massachusetts license number 60294, 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.
What is William D. Kasimer's MIPS final score?
The 2023 MIPS final score is 90.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.