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Justin Seth Holtzman, M.D.

NPI 1669769501ActiveIndividual· Internal Medicine· Brookline, MA

Internal Medicine (M.D.) with Mary Imogene Bassett Hospital and 2 other groups, practicing in Brookline, Massachusetts. 491 Medicare patients in 2024, $110,697 paid; nearly all of their 1,602 Part D prescriptions were generic (90%). Gilead Sciences, Inc. was the largest of 19 companies reporting payments in 2025, $1,521 in all, mostly food and beverage. Lists Beth Israel Deaconess Medical Center and 4 other hospitals as hospital affiliations.

Overview

NPI1669769501
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 29, 2011
Last updated in NPPESJan 3, 2024
Certified by providerJan 3, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X257451MA
Hospitalist208M00000X257451MA
Hospitalist208M00000X295944NY

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Hospitalist (MA); Practitioner - Hospitalist (NY)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients491
Services billed1,504 across 45 procedure codes
Paid by Medicare$110,697

Part D prescriptions in 2024

Prescriptions (claims)1,602 · 3,203 30-day fills
Patients234
Total drug cost$143,164
Generic share90% of claims

Medicare sources and data years

Education and affiliations

Graduation year2011
Medicare specialtyHospitalist
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,521 · 64 payments from 19 companies
  • 2024$963.84 · 40 payments from 21 companies

Top paying companies in 2025

CompanyAmountPayments
Gilead Sciences, Inc.$336.879
Pfizer Inc.$246.0310
Abbvie Inc.$194.7311
Astrazeneca Pharmaceuticals LP$151.988
Lilly USA, LLC$87.403

What the 2025 payments were for

  • Food and Beverage$1,521 · 64 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other internal medicine physicians in Brookline

All 71 internal medicine physicians in Brookline · All internal medicine physicians in Massachusetts