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James C. Lee, M.D.

NPI 1346482007ActiveIndividual· Internal Medicine, Hematology & Oncology· San Francisco, CA

Internal Medicine, Hematology & Oncology (M.D.) in San Francisco, California, trained at Yale University School of Medicine (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $72,298 for 31 claims, against $12,240 paid for services in 2024. Regeneron Healthcare Solutions, Inc. was the largest of 2 companies reporting payments in 2025, $225.86 in all, mostly food and beverage.

Overview

NPI1346482007
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorYes
NPI issuedMar 27, 2009
Last updated in NPPESDec 11, 2017

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Hematology & Oncology Primary207RH0003XA126831CA

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 - Internal Medicine (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients28
Services billed100 across 3 procedure codes
Paid by Medicare$12,240

Part D prescriptions in 2024

Prescriptions (claims)31 · 31 30-day fills
Total drug cost$72,298
Generic share84% of claims

Medicare sources and data years

Education and affiliations

Medical schoolYale University School of Medicine
Graduation year2009
Medicare specialtyInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$225.86 · 2 payments from 2 companies
  • 2024$277.49 · 3 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Regeneron Healthcare Solutions, Inc.$120.401
Caris Mpi, Inc.$105.461

What the 2025 payments were for

  • Food and Beverage$225.86 · 2 payments

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

Other hematologist-oncologists in San Francisco

All 71 hematologist-oncologists in San Francisco · All hematologist-oncologists in California