Skip to content

Caitlin Margaret Richardson-Royer, M.D.

NPI 1922351881ActiveIndividual· Internal Medicine, Nephrology· Vallejo, CA

Internal Medicine, Nephrology (M.D.) with Permanente Medical Group Inc, practicing in Vallejo, California. Part D covered 45 prescriptions written in 2024, 100% of them generic. Amgen Inc. reported $136.56 in payments in 2024, mostly food and beverage. Lists Kaiser Foundation Hospital - Vacaville and 1 other hospital as hospital affiliations.

Overview

NPI1922351881
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedOct 17, 2012
Last updated in NPPESSep 9, 2025
Certified by providerSep 9, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Nephrology Primary207RN0300XA204088CA

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); Practitioner - Hospitalist (OH)

Part D prescriptions in 2024

Prescriptions (claims)45 · 45 30-day fills
Total drug cost$429.31
Generic share100% of claims

Medicare sources and data years

Education and affiliations

Graduation year2011
Medicare specialtyNephrology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2024$136.56 · 1 payment from 1 company

Top paying companies in 2024

CompanyAmountPayments
Amgen Inc.$136.561

What the 2024 payments were for

  • Food and Beverage$136.56 · 1 payment

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

Other nephrologists in Vallejo

All nephrologists in California