NPI Lens

John R. Clausen, MD

NPI 1942386461ActiveIndividual· Hospitalist· San Jose, CA

Hospitalist (MD) in San Jose, California, trained at University of Texas Medical School at San Antonio (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $35,587 for 475 claims, against $3,591 paid for services in 2024.

Overview

NPI1942386461
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedOct 27, 2006
Last updated in NPPESDec 13, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Hospitalist Primary208M00000XA75348CA

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 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 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 patients21
Services billed46 across 6 procedure codes
Paid by Medicare$3,591

Part D prescriptions in 2024

Prescriptions (claims)475 · 929 30-day fills
Patients162
Total drug cost$35,587
Generic share85% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Texas Medical School at San Antonio
Graduation year1998
Medicare specialtyInternal Medicine

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

Other Hospitalist providers in San Jose

All Hospitalist providers in California →