NPPES file of Aug 9, 2026

Jacob S Unil Mathew, MD

Psychiatry Physician · Boston, MA

Jacob S Unil Mathew, MD is a psychiatry physician with a practice address in Boston, Massachusetts, and NPI 1952558736, issued on Aug 22, 2008. Check the license (Massachusetts 237589, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952558736
Name
Jacob S Unil Mathew
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
237589 MA
Self-reported in NPPES; status is on the state search
Practice location
750 Washinton Street, Boston, MA 02111
Phone
(617) 636-7459
Enumerated
Aug 22, 2008
Record last updated
May 24, 2023
Medicare enrollment
Enrolled (PECOS I20120914000246); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 750 Washinton Street

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

  1. Shohreh Modanlou, M.D.Anesthesiology Physician1154506871

Verify Jacob S Unil Mathew 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 237589
    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.

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46% fewer Medicare Part D claims than the average psychiatry physician in 2024

539 Medicare Part D claims for 106 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.

  1. Jacob Mathew539
  2. Specialty average1,000

Most prescribed

  1. Olanzapine31 claims
  2. Divalproex Sodium30 claims
  3. Gabapentin22 claims
  4. Omeprazole22 claims
  5. Haloperidol21 claims
  6. Atorvastatin Calcium20 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 68.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score69.9
  2. Costout of 100 · 30%33.9
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 3 group practices

  1. Arbour IncBoston, MA
  2. Beth Israel Lahey Health Specialty Care, Inc.Burlington, MA
  3. Hri Hospital, IncBrookline, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jacob S Unil Mathew among 2,736 psychiatry physician records in Massachusetts

Jacob S Unil Mathew, 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 2008, is newer than 63% of them.

  • NPI issued2008 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated1999 · 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).

845 psychiatry physician records list a practice address in Boston

They are 845 of the 41,865 NPPES records with a practice address in Boston, and 2,736 psychiatry physician records in Massachusetts.

The 8 psychiatry physician records with the nearest ZIP codes

  1. David Adler, M.D.Boston, MA 021111760446223
  2. Seyyed Ghaemi, MDBoston, MA 021111003928102
  3. Lee Hsu, MD, FRC PSYCHBoston, MA 021111952417693
  4. Grigoriy Labun, M.D.Boston, MA 021111144252685
  5. Ingrid Li, M.D.Boston, MA 021111821022575
  6. Matthew McGonagle, MDBoston, MA 021111598780231
  7. Sabrina Popp, M.D.Boston, MA 021111245287903
  8. Thomas Posever, MDBoston, MA 021111841300266

Common questions

What is Jacob S Unil Mathew, MD's NPI number?

Jacob S Unil Mathew, MD's National Provider Identifier (NPI) is 1952558736, issued on Aug 22, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Jacob S Unil Mathew, MD located?

The NPPES record lists a practice address at 750 Washinton Street, Boston, MA, 02111. Phone: (617) 636-7459. Providers update this record themselves, so call before visiting.

How can I verify Jacob S Unil Mathew, MD's license?

NPPES lists Massachusetts license number 237589, 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 Jacob S Unil Mathew, MD prescribe under Medicare Part D?

In 2024, Jacob S Unil Mathew, MD had 539 Medicare Part D claims for 106 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is Jacob S Unil Mathew, MD's MIPS final score?

The 2023 MIPS final score is 68.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.