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Stephen J. Markham, D.D.S.

NPI 1265420194ActiveIndividual· Dentist· Federal Way, WA

Dentist (D.D.S.) in Federal Way, Washington, licensed in WA and NM, with an NPI issued in October 2005. Part D covered 22 prescriptions written in 2024, 86% of them generic. A-Dec, Inc. was the largest of 2 companies reporting payments in 2025, $447.23 in all, mostly gifts.

Overview

NPI1265420194
StatusActive
Entity typeIndividual
CredentialD.D.S.
Sole proprietorNo
NPI issuedOct 13, 2005
Last updated in NPPESNov 14, 2023
Certified by providerNov 14, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Dentist Primary122300000XDE00011088WA
Dentist122300000XDD1803NM

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)Not in the public enrollment file of Oct 1, 2026

Part D prescriptions in 2024

Prescriptions (claims)22 · 28 30-day fills
Patients18
Total drug cost$114.21
Generic share86% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$447.23 · 3 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
A-Dec, Inc.$432.002
Colgate Oral Pharmaceuticals, Inc.$15.231

What the 2025 payments were for

  • Gift$432.00 · 2 payments
  • Food and Beverage$15.23 · 1 payment

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

Other dentists in Federal Way

All 75 dentists in Federal Way · All dentists in Washington