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Jennifer Ang Chan, MD

NPI 1871578823ActiveIndividual· Internal Medicine, Medical Oncology· Boston, MA

Internal Medicine, Medical Oncology (MD) in Boston, Massachusetts, trained at Harvard Medical School (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $162,445 for 92 claims, against $39,763 paid for services in 2024. Genzyme Corporation was the largest of 6 companies reporting payments in 2025, $23,961 in all, mostly consulting fees.

Overview

NPI1871578823
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedDec 13, 2005
Last updated in NPPESMar 10, 2015

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Medical Oncology Primary207RX0202X217026MA
Internal Medicine207R00000X217026MA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Medical Oncology (MA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients152
Services billed413 across 11 procedure codes
Paid by Medicare$39,763

Part D prescriptions in 2024

Prescriptions (claims)92 · 121 30-day fills
Patients36
Total drug cost$162,445
Generic share74% of claims

Medicare sources and data years

Education and affiliations

Medical schoolHarvard Medical School
Graduation year2000
Medicare specialtyMedical Oncology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$23,961 · 16 payments from 6 companies
  • 2024$11,224 · 16 payments from 3 companies

Top paying companies in 2025

What the 2025 payments were for

  • Consulting Fee$11,907 · 3 payments
  • Travel and Lodging$5,579 · 3 payments
  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$5,517 · 1 payment
  • Food and Beverage$959.06 · 9 payments

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

Other Internal Medicine, Medical Oncology providers in Boston

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