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Raymond K. Hsu, M.D.

NPI 1124139167ActiveIndividual· Internal Medicine, Nephrology· San Francisco, CA

Internal Medicine, Nephrology (M.D.) in San Francisco, California, trained at Northwestern University Feinberg Medical School (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $833,111 for 941 claims, against $101,417 paid for services in 2024. Alexion Pharmaceuticals, Inc. was the largest of 9 companies reporting payments in 2025, $57,287 in all, mostly consulting fees.

Overview

NPI1124139167
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedAug 31, 2006
Last updated in NPPESApr 22, 2020
Certified by providerApr 22, 2020

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Nephrology Primary207RN0300XA108247CA
Internal Medicine207R00000XA108247CA

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 - Nephrology (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients246
Services billed1,993 across 28 procedure codes
Paid by Medicare$101,417

Part D prescriptions in 2024

Prescriptions (claims)941 · 2,379 30-day fills
Patients114
Total drug cost$833,111
Generic share75% of claims

Medicare sources and data years

Education and affiliations

Medical schoolNorthwestern University Feinberg Medical School
Graduation year2005
Medicare specialtyNephrology
TelehealthOffers telehealth

Medical groups

Hospital affiliation

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$57,287 · 45 payments from 9 companies
  • 2024$11,143 · 15 payments from 8 companies

Top paying companies in 2025

What the 2025 payments were for

  • Consulting Fee$44,765 · 5 payments
  • Travel and Lodging$7,108 · 13 payments
  • Compensation for serving as faculty or as a speaker for a medical education program$3,500 · 2 payments
  • Food and Beverage$1,914 · 25 payments

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

Other nephrologists in San Francisco

All 83 nephrologists in San Francisco · All nephrologists in California