Skip to content

Richard R. Winkelmann, D.O.

NPI 1720427024ActiveIndividual· Dermatology· Downey, CA

Dermatology (D.O.) in Downey, California, trained at Ohio State University College of Medicine (class of 2013). 876 Medicare patients in 2024, $741,959 paid; all of their 1,236 Part D prescriptions were generic. Janssen Biotech, Inc. was the largest of 2 companies reporting payments in 2025, $48.95 in all, mostly food and beverage.

Overview

NPI1720427024
StatusActive
Entity typeIndividual
CredentialD.O.
Sole proprietorYes
NPI issuedJun 19, 2013
Last updated in NPPESFeb 24, 2026
Certified by providerFeb 24, 2026

Specialties and licenses

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 - Dermatology (AZ); Practitioner - Dermatology (CA); Practitioner - Dermatology (NV); Practitioner - Micrographic Dermatologic Surgery (Mds) (SC)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients876
Services billed2,533 across 80 procedure codes
Paid by Medicare$741,959

Part D prescriptions in 2024

Prescriptions (claims)1,236 · 1,236 30-day fills
Patients561
Total drug cost$9,892
Generic share100% of claims

Medicare sources and data years

Education and affiliations

Medical schoolOhio State University College of Medicine
Graduation year2013
Medicare specialtyDermatology

Medical groups

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$48.95 · 2 payments from 2 companies
  • 2024$44.39 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Janssen Biotech, Inc.$28.241
Lilly USA, LLC$20.711

What the 2025 payments were for

  • Food and Beverage$48.95 · 2 payments

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

Other Dermatology providers in Downey

All Dermatology providers in California →