NPPES file of Aug 9, 2026

William J. Brucker, M.D.

Clinical Genetics (M.D.) Physician · Boston, MA

William J. Brucker, M.D. is a clinical genetics (m.d.) physician with a practice address in Boston, Massachusetts, and NPI 1942543962, issued on Mar 27, 2013. Check the license (Massachusetts 269038, 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
1942543962
Name
William J. Brucker
Credential
M.D.
Primary taxonomy
Clinical Genetics (M.D.) Physician 207SG0201X
License number
269038 MA
Self-reported in NPPES; status is on the state search
Practice location
300 Longwood Ave, Boston, MA 02115
Phone
(617) 355-6000
Enumerated
Mar 27, 2013
Record last updated
Oct 21, 2024
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 300 Longwood Ave

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

  1. Sylvia Abadir, MDPediatric Cardiology Physician1427366459
  2. Isabel Abbott, MDNeurology with Special Qualifications in Child Neurology Physician1033772579
  3. Kristin Abdelnour, PTPhysical Therapist1982821302
  4. Mohamed Abdelrahman, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1558050591
  5. Nadia Abdulrazak, N.P.Adult Health Nurse Practitioner1952616682
  6. Dhatri AbeyaratneStudent in an Organized Health Care Education/Training Program1437098233

Verify William J. Brucker 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 269038
    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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75% fewer Medicare Part D claims than the average clinical genetics (m.d.) physician in 2024

15 Medicare Part D claims, against an average of 59 among the 193 providers of this specialty who prescribed in Part D.

  1. William Brucker15
  2. Specialty average59

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 J. Brucker among 56 clinical genetics (m.d.) physician records in Massachusetts

William J. Brucker, M.D. is one of 56 clinical genetics (m.d.) physician records with a practice address in Massachusetts. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 64% of them.

  • NPI issued2013 · 64% of these records are older, 30% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207SG0201X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Genetics (M.D.) Physician providers in Massachusetts

There are 56 clinical genetics (m.d.) physician records in Massachusetts.

The 8 clinical genetics (m.d.) physician records with the nearest ZIP codes

  1. Wendy Chung, MDBoston, MA 021151972578540
  2. Gerald Cox, MD, PHDBoston, MA 021151811955479
  3. David Harris, MDBoston, MA 021151770546855
  4. Jodi Hoffman, M.D.Boston, MA 021151871605360
  5. Ingrid Holm, MDBoston, MA 021151356306914
  6. Amy Kritzer, MDBoston, MA 021151700044336
  7. Helen Lyon, MDBoston, MA 021151659362309
  8. Lauren Massingham, M.D.Boston, MA 021151417000357

Common questions

What is William J. Brucker, M.D.'s NPI number?

William J. Brucker, M.D.'s National Provider Identifier (NPI) is 1942543962, issued on Mar 27, 2013. An NPI identifies a provider in billing; it is not a license.

Where is William J. Brucker, M.D. located?

The NPPES record lists a practice address at 300 Longwood Ave, Boston, MA, 02115. Phone: (617) 355-6000. Providers update this record themselves, so call before visiting.

How can I verify William J. Brucker, M.D.'s license?

NPPES lists Massachusetts license number 269038, 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 J. Brucker, M.D. prescribe under Medicare Part D?

In 2024, William J. Brucker, M.D. had 15 Medicare Part D claims; the average among clinical genetics (m.d.) physician prescribers was 59. 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.