NPPES file of Aug 9, 2026

Priyadarshini Pathak, M.D.

Hematology & Oncology Physician · Boston, MA

Priyadarshini Pathak, M.D. is a hematology & oncology physician with a practice address in Boston, Massachusetts, and NPI 1487100608, issued on Aug 28, 2016. Check the license (Massachusetts 291568, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1487100608
Name
Priyadarshini Pathak
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
291568 MA
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St, Boston, MA 02114
Phone
(917) 680-5679
Enumerated
Aug 28, 2016
Record last updated
Jan 22, 2026
Medicare enrollment
Enrolled (PECOS I20220729002358); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 55 Fruit St

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

  1. Affan Aamir, MD, PHARMD, RPHStudent in an Organized Health Care Education/Training Program1821890377
  2. Matthew AbadirAnesthesiology Physician1699120550
  3. Taimur AbbasiInternal Medicine Physician1841673522
  4. Megan Abbott, MDAnesthesiology Physician1730839333
  5. Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
  6. Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590

Verify Priyadarshini Pathak 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 291568
    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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76% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

208 Medicare Part D claims for 51 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 14 claims were for opioids.

  1. Priyadarshini Pathak208
  2. Specialty average877

Most prescribed

  1. Ondansetron Hcl30 claims
  2. Prochlorperazine Maleate26 claims
  3. Loperamide20 claims
  4. Creon12 claims
  5. Eliquis12 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 2 group practices

  1. Massachusetts General Physicians Organization IncBoston, MA
  2. The General Hospital CorporationBoston, MA

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

Priyadarshini Pathak among 461 hematology & oncology physician records in Massachusetts

Priyadarshini Pathak, M.D. is one of 461 hematology & oncology 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 2016, is newer than 88% of them.

  • NPI issued2016 · 88% of these records are older, 9% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2014 · median 2004 among the 303 with a school on file
  • Record last updated2026 · 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 207RH0003X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Massachusetts

There are 461 hematology & oncology physician records in Massachusetts.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Vassiliki Boussiotis, MD PHDBoston, MA 021141861474215
  2. Marcia Browne, MDBoston, MA 021141639146210
  3. George Canellos, MDBoston, MA 021141114908027
  4. Yi-Bin Chen, MDBoston, MA 021141356332639
  5. John ClarkBoston, MA 021141871550244
  6. Lauren Dias, MDBoston, MA 021141215928346
  7. Kira Gritsman, MDBoston, MA 021141174598148
  8. David HarmonBoston, MA 021141851358352

Common questions

What is Priyadarshini Pathak, M.D.'s NPI number?

Priyadarshini Pathak, M.D.'s National Provider Identifier (NPI) is 1487100608, issued on Aug 28, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Priyadarshini Pathak, M.D. located?

The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (917) 680-5679. Providers update this record themselves, so call before visiting.

How can I verify Priyadarshini Pathak, M.D.'s license?

NPPES lists Massachusetts license number 291568, 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 Priyadarshini Pathak, M.D. prescribe under Medicare Part D?

In 2024, Priyadarshini Pathak, M.D. had 208 Medicare Part D claims for 51 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.