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Catherine Santizo, PA

NPI 1437882875ActiveIndividual· Physician Assistant· Santa Clarita, CA

Physician Assistant (PA) in Santa Clarita, California, trained at University of Southern California Keck School of Medicine (class of 2023). Part D covered 483 prescriptions written in 2024, 82% of them generic. Madrigal Pharmaceuticals was the largest of 2 companies reporting payments in 2025, $271.85 in all, mostly food and beverage.

Overview

NPI1437882875
StatusActive
Entity typeIndividual
CredentialPA
Sole proprietorYes
NPI issuedJul 4, 2022
Last updated in NPPESOct 18, 2025
Certified by providerOct 18, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Physician Assistant Primary363A00000XPA63001CA

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 - Physician Assistant (CA)

Part D prescriptions in 2024

Prescriptions (claims)483 · 1,023 30-day fills
Patients73
Total drug cost$64,409
Generic share82% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Southern California Keck School of Medicine
Graduation year2023
Medicare specialtyPhysician Assistant

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$271.85 · 2 payments from 2 companies
  • 2024$1,034 · 28 payments from 12 companies

Top paying companies in 2025

CompanyAmountPayments
Madrigal Pharmaceuticals$150.001
Viiv Healthcare Company$121.851

What the 2025 payments were for

  • Food and Beverage$271.85 · 2 payments

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

Other physician assistants in Santa Clarita

All physician assistants in California