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Charles R. Mills, MD

NPI 1689659674ActiveIndividual· Internal Medicine, Rheumatology· Farmington, AR

Internal Medicine, Rheumatology (MD) in Farmington, Arkansas, trained at Loma Linda University School of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $3,306,393 for 2,420 claims, against $539.71 paid for services in 2024. Abbvie Inc. was the largest of 5 companies reporting payments in 2025, $841.63 in all, mostly food and beverage.

Overview

NPI1689659674
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedDec 13, 2005
Last updated in NPPESJun 20, 2022
Certified by providerJun 20, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Rheumatology Primary207RR0500XE-5405AR

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (AR)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients11
Services billed18 across 7 procedure codes
Paid by Medicare$539.71

Part D prescriptions in 2024

Prescriptions (claims)2,420 · 4,050 30-day fills
Patients309
Total drug cost$3,306,393
Generic share76% of claims

Medicare sources and data years

Education and affiliations

Medical schoolLoma Linda University School of Medicine
Graduation year1997
Medicare specialtyInternal Medicine
Secondary specialtiesRheumatology

Medical groups

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$841.63 · 46 payments from 5 companies
  • 2024$1,007 · 55 payments from 7 companies

Top paying companies in 2025

CompanyAmountPayments
Abbvie Inc.$300.6623
Ucb, Inc.$284.699
Amgen Inc.$182.5810
Ani Pharmaceuticals, Inc.$59.573
Lilly USA, LLC$14.131

What the 2025 payments were for

  • Food and Beverage$841.63 · 46 payments

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