Maxwell Irving Mayer, M.D.
Psychiatry Physician · Fall River, MA
Maxwell Irving Mayer, M.D. is a psychiatry physician with a practice address in Fall River, Massachusetts, and NPI 1609123207, issued on Aug 14, 2012. Check the license (Massachusetts 274121, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Maxwell Irving Mayer
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 274121 MA
Self-reported in NPPES; status is on the state search - Practice location
- 49 Hillside St, Fall River, MA 02720
- Phone
- (508) 235-7333
- Enumerated
- Aug 14, 2012
- Record last updated
- Dec 13, 2023
- Medicare enrollment
- Enrolled (PECOS I20190201002022); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 49 Hillside St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Afonso, M.D.Psychiatry Physician1396759015
- Wendy Bethoney, LICSWClinical Social Worker1831291947
- Michelle BishopClinical Social Worker1497401293
- Roger Boshes, M.D.Psychiatry Physician1467409045
- Elizabeth Bosworth, LICSWClinical Social Worker1164569042
- Patricia Boucher-Fortin, LPNLicensed Practical Nurse1679608731
Verify Maxwell Irving Mayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 274121Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average psychiatry physician in 2024
368 Medicare Part D claims for 29 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Clozapine70 claims
- Lorazepam35 claims
- Propranolol Hcl Er27 claims
- Atenolol16 claims
- Clozapine Odt14 claims
- Aristada12 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
- The Commonwealth OF MassachusettsFall River, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maxwell Irving Mayer among 2,736 psychiatry physician records in Massachusetts
Maxwell Irving Mayer, M.D. is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 72% of them.
- NPI issued2012 · 72% of these records are older, 26% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2012 · median 2005 among the 1,219 with a school on file
- Record last updated2023 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Massachusetts
There are 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Fall River → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Joseph Afonso, M.D.Fall River, MA 027201396759015
- Genie Bailey, MDFall River, MA 027201598852576
- Roger Boshes, M.D.Fall River, MA 027201467409045
- Daniel Comiskey, M.D.Fall River, MA 027201780752501
- Claude Curran, M.D.Fall River, MA 027201609980135
- Alexandrina Darabus, M.D.Fall River, MA 027201497780720
- Gerald Donovan, MDFall River, MA 027201356326623
- Douglas Griffiths, M.D.Fall River, MA 027201285719104
Common questions
What is Maxwell Irving Mayer, M.D.'s NPI number?
Maxwell Irving Mayer, M.D.'s National Provider Identifier (NPI) is 1609123207, issued on Aug 14, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Maxwell Irving Mayer, M.D. located?
The NPPES record lists a practice address at 49 Hillside St, Fall River, MA, 02720. Phone: (508) 235-7333. Providers update this record themselves, so call before visiting.
How can I verify Maxwell Irving Mayer, M.D.'s license?
NPPES lists Massachusetts license number 274121, 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 Maxwell Irving Mayer, M.D. prescribe under Medicare Part D?
In 2024, Maxwell Irving Mayer, M.D. had 368 Medicare Part D claims for 29 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.