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Justin Mikesell

NPI 1649991720ActiveIndividual· Physician Assistant· Thousand Oaks, CA

Physician Assistant with Pacifica Dermatology, practicing in Thousand Oaks, California. Their prescriptions cost Medicare Part D more than their services did: $161,845 for 138 claims, against $38,959 paid for services in 2024. Arcutis Biotherapeutics, Inc. was the largest of 16 companies reporting payments in 2025, $1,008 in all, mostly food and beverage.

Overview

NPI1649991720
StatusActive
Entity typeIndividual
Sole proprietorNo
NPI issuedSep 7, 2022
Last updated in NPPESSep 7, 2022
Certified by providerSep 7, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Physician Assistant Primary363A00000X61471CA
Physician Assistant363A00000X——

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)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients178
Services billed960 across 23 procedure codes
Paid by Medicare$38,959

Part D prescriptions in 2024

Prescriptions (claims)138 · 162 30-day fills
Patients57
Total drug cost$161,845
Generic share83% of claims

Medicare sources and data years

Education and affiliations

Graduation year2022
Medicare specialtyPhysician Assistant

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,008 · 41 payments from 16 companies
  • 2024$1,237 · 48 payments from 12 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$1,008 · 41 payments

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

Other physician assistants in Thousand Oaks

All 40 physician assistants in Thousand Oaks · All physician assistants in California