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John R. Dexter, MD

NPI 1710034970ActiveIndividual· Internal Medicine· Ventura, CA

Internal Medicine (MD) in Ventura, California, trained at Loma Linda University School of Medicine (class of 1977). In 2024 Medicare paid $66,328 for 182 patients, and Part D covered 112 of their prescriptions, 86% of them generic. Smith+nephew, Inc. was the largest of 4 companies reporting payments in 2025, $146.25 in all, mostly food and beverage.

Overview

NPI1710034970
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorYes
NPI issuedJan 3, 2007
Last updated in NPPESOct 6, 2021
Certified by providerOct 6, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XG38860CA

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 - Physical Medicine and Rehabilitation (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients182
Services billed1,436 across 25 procedure codes
Paid by Medicare$66,328

Part D prescriptions in 2024

Prescriptions (claims)112 · 124 30-day fills
Patients51
Total drug cost$8,222
Generic share86% of claims

Medicare sources and data years

Education and affiliations

Medical schoolLoma Linda University School of Medicine
Graduation year1977
Medicare specialtyPhysical Medicine And Rehabilitation

Hospital affiliation

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$146.25 · 7 payments from 4 companies
  • 2024$300.63 · 14 payments from 6 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$146.25 · 7 payments

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

Other internal medicine physicians in Ventura

All 77 internal medicine physicians in Ventura · All internal medicine physicians in California