Diab Ali, MD
Psychiatry Physician · Brookline, MA
Diab Ali, MD is a psychiatry physician with a practice address in Brookline, Massachusetts, and NPI 1134700206, issued on Apr 19, 2021. Check the license (Massachusetts 1019319, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Diab Ali
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 1019319 MA
Self-reported in NPPES; status is on the state search - Practice location
- 2 Brookline PL, Brookline, MA 02445
- Phone
- (617) 355-6680
- Enumerated
- Apr 19, 2021
- Record last updated
- Sep 10, 2025
- Medicare enrollment
- Enrolled (PECOS I20250812001116); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 2 Brookline PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Erica GniadoPhysical Therapist1891571097
- Cleo Gordon, LCSWClinical Social Worker1205615036
- Mohammad HassanFamily Medicine Physician1639819667
Verify Diab Ali in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1019319Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Mass General Brigham Medical Group Suburban Massachusetts IncNewton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diab Ali among 2,736 psychiatry physician records in Massachusetts
Diab Ali, MD 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 2021, is newer than 93% of them.
- NPI issued2021 · 93% of these records are older, 5% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2020 · median 2005 among the 1,219 with a school on file
- Record last updated2025 · 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).
117 psychiatry physician records list a practice address in Brookline
They are 117 of the 2,357 NPPES records with a practice address in Brookline, and 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Brookline → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Michele Baker, M.D.Brookline, MA 024451871544379
- Ellen Blumenthal, MDBrookline, MA 024451770552861
- Ethel Bullitt, M.D.Brookline, MA 024451700833183
- Eugene Cacciola, M.D.Brookline, MA 024451881682466
- Eugene Fierman, M.D.Brookline, MA 024451366429839
- Linda Gross, M.D.Brookline, MA 024451588603674
- Hilary Hoge, M.D.Brookline, MA 024451023000841
- Jonathan Kolb, MDBrookline, MA 024451821088394
Common questions
What is Diab Ali, MD's NPI number?
Diab Ali, MD's National Provider Identifier (NPI) is 1134700206, issued on Apr 19, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Diab Ali, MD located?
The NPPES record lists a practice address at 2 Brookline PL, Brookline, MA, 02445. Phone: (617) 355-6680. Providers update this record themselves, so call before visiting.
How can I verify Diab Ali, MD's license?
NPPES lists Massachusetts license number 1019319, 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.
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.