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Julia Olson Farmer, MD

NPI 1508959347ActiveIndividual· Internal Medicine· Vista, CA

Internal Medicine (MD) in Vista, California, trained at University of California, Davis School of Medicine (class of 2002). Part D covered 4,517 prescriptions written in 2024, 83% of them generic. Bayer Healthcare Pharmaceuticals Inc. was the largest of 3 companies reporting payments in 2025, $290.42 in all, mostly food and beverage.

Overview

NPI1508959347
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedOct 2, 2006
Last updated in NPPESFeb 26, 2025
Certified by providerFeb 26, 2025

Specialties and licenses

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 - Rheumatology (CA)

Part D prescriptions in 2024

Prescriptions (claims)4,517 · 8,708 30-day fills
Patients269
Total drug cost$531,882
Generic share83% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of California, Davis School of Medicine
Graduation year2002
Medicare specialtyRheumatology

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$290.42 · 3 payments from 3 companies
  • 2024$161.84 · 3 payments from 1 company

Top paying companies in 2025

CompanyAmountPayments
Bayer Healthcare Pharmaceuticals Inc.$135.211
Braeburn Inc.$126.851
Lilly USA, LLC$28.361

What the 2025 payments were for

  • Food and Beverage$290.42 · 3 payments

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

Other internal medicine physicians in Vista

All 57 internal medicine physicians in Vista · All internal medicine physicians in California