Registry data as of Aug 27, 2026

Mohammad Hassan

Family Medicine Physician · Brookline, MA

Mohammad Hassan is a family medicine physician with a practice address in Brookline, Massachusetts, and NPI 1639819667, issued on Mar 29, 2022. Check the license (Massachusetts 1024331, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1639819667
Name
Mohammad Hassan
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
1024331 MA
Self-reported in NPPES; status is on the state search
Practice location
2 Brookline PL, Brookline, MA 02445
Phone
(617) 355-2727
Enumerated
Mar 29, 2022
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 2 Brookline PL

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

  1. Diab Ali, MDPsychiatry Physician1134700206
  2. Sarah BeldenPhysical Therapist1265258404
  3. Yun Young ChoPediatric Dentistry1689431397
  4. Jennifer Christofferson, PHDClinical Child & Adolescent Psychologist1609768233
  5. Erica GniadoPhysical Therapist1891571097
  6. Cleo Gordon, LCSWClinical Social Worker1205615036

Verify Mohammad Hassan 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 1024331
    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.

84% fewer Medicare Part D claims than the average family medicine physician in 2024

569 Medicare Part D claims for 83 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Mohammad Hassan569
  2. Specialty average3,519

Most prescribed

  1. Atorvastatin Calcium34 claims
  2. Omeprazole30 claims
  3. Gabapentin28 claims
  4. Lisinopril28 claims
  5. Ozempic27 claims
  6. Albuterol Sulfate Hfa21 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.

Family Medicine Physician providers in Massachusetts

There are 2,226 family medicine physician records in Massachusetts.

Other family medicine physician records in Massachusetts

  1. Salah Abass, M.D.Methuen, MA1417959776
  2. Sheila Abdallah, MDWorcester, MA1821356312
  3. Jonathan Abel, DOSpringfield, MA1700897196
  4. Mohamed Abib, MDSturbridge, MA1639281090
  5. Kevin Abraham, M.D.Worcester, MA1689037673
  6. Janet Abrahamian, M.D.West Boylston, MA1932156627
  7. John Abramson, M.D.Ipswich, MA1275613903
  8. John Paul Abroguena, MDPlainville, MA1235361080
  9. Aliza Acker-Bernstein, M.D.Peabody, MA1023057551
  10. Lisa Adams, MDFalmouth, MA1235404336

Common questions

What is Mohammad Hassan's NPI number?

Mohammad Hassan's National Provider Identifier (NPI) is 1639819667, issued on Mar 29, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Mohammad Hassan located?

The NPPES record lists a practice address at 2 Brookline PL, Brookline, MA, 02445. Phone: (617) 355-2727. Providers update this record themselves, so call before visiting.

How can I verify Mohammad Hassan's license?

NPPES lists Massachusetts license number 1024331, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mohammad Hassan prescribe under Medicare Part D?

In 2024, Mohammad Hassan had 569 Medicare Part D claims for 83 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.