William J. Mullally, MD
Neurology Physician · Braintree, MA
William J. Mullally, MD is a neurology physician with a practice address in Braintree, Massachusetts, and NPI 1659463339, issued on Sep 29, 2006. Check the license (Massachusetts 46261, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- William J. Mullally
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 46261 MA
Self-reported in NPPES; status is on the state search - Practice location
- 111 Grossman Dr, Braintree, MA 02184
- Phone
- (781) 849-2265
- Enumerated
- Sep 29, 2006
- Record last updated
- Jun 7, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (781) 849-2274
- Medicaid ID
- 3179591 MA
- Medicare enrollment
- Enrolled (PECOS I20050425000098); accepts Medicare assignment
- Medical or professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 1976
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 964 in Massachusetts → Look up another NPI →
Also registered at 111 Grossman Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deborah Antos, PAMedical Physician Assistant1295798437
- Peter Barrant, M.D.Pediatrics Physician1215913835
- Caitlin Bast, DNPAdult Health Nurse Practitioner1558945071
- Gail Bean, NPNurse Practitioner1992774137
- Vicki Beggs, PHDPsychologist1104877539
- Elvira Belenky, PAMedical Physician Assistant1316901507
Verify William J. Mullally in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 46261Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average neurology physician in 2024
1,308 Medicare Part D claims for 261 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Gabapentin166 claims
- Nortriptyline Hcl99 claims
- Rizatriptan74 claims
- Sumatriptan Succinate68 claims
- Amitriptyline Hcl55 claims
- Topiramate47 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 one group practice
- Brigham And Womens Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William J. Mullally among 964 neurology physician records in Massachusetts
William J. Mullally, MD is one of 964 neurology physician records with a practice address in Massachusetts. 75% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 57% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1976 · median 2006 among the 612 with a school on file
- Record last updated2011 · 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 2084N0400X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Massachusetts
There are 964 neurology physician records in Massachusetts.
All 964 in Massachusetts → Every provider in Braintree → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Hagen Yang, MDBraintree, MA 021841902015266
- Fereydoun Shahrokhi, MDStoneham, MA 021801902865322
- Margot Geffroy, M.D.Weymouth, MA 021891245298298
- Larry Markowitz, M.D.Weymouth, MA 021891205863461
- Valeriy Parfenov, MDWeymouth, MA 021891730353939
- Paul Blachman, MDSouth Weymouth, MA 021901669462578
- Michael Hayes, MDSouth Weymouth, MA 021901689663338
- Jacob Kogan, MDSouth Weymouth, MA 021901861677437
Common questions
What is William J. Mullally, MD's NPI number?
William J. Mullally, MD's National Provider Identifier (NPI) is 1659463339, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William J. Mullally, MD located?
The NPPES record lists a practice address at 111 Grossman Dr, Braintree, MA, 02184. Phone: (781) 849-2265. Providers update this record themselves, so call before visiting.
How can I verify William J. Mullally, MD's license?
NPPES lists Massachusetts license number 46261, 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. Mullally, MD prescribe under Medicare Part D?
In 2024, William J. Mullally, MD had 1,308 Medicare Part D claims for 261 beneficiaries; the average among neurology physician prescribers was 1,370. 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.