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John S. Adams, D.D.S.

NPI 1881847531ActiveIndividual· Dentist, General Practice· Fredericktown, MO

Opted out of Medicare from January 2016 to January 2028. Dentist, General Practice (D.D.S.) in Fredericktown, Missouri, licensed in AZ, with an NPI issued in October 2008. Part D covered 144 prescriptions written in 2024, 94% of them generic. A-Dec, Inc. was the largest of 5 companies reporting payments in 2025, $4,078 in all, mostly gifts.

Overview

NPI1881847531
StatusActive
Entity typeIndividual
CredentialD.D.S.
Sole proprietorNo
NPI issuedOct 28, 2008
Last updated in NPPESMay 5, 2010

Specialties and licenses

TaxonomyCodeLicenseState
Dentist, General Practice Primary1223G0001XD7574AZ

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)Not in the public enrollment file of Oct 1, 2026
Opt-outOpted out Jan 1, 2016 – Jan 1, 2028
Can order and referYes

During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.

Part D prescriptions in 2024

Prescriptions (claims)144 · 146 30-day fills
Patients77
Total drug cost$885.62
Generic share94% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$4,078 · 12 payments from 5 companies
  • 2024$132.51 · 1 payment from 1 company

Top paying companies in 2025

What the 2025 payments were for

  • Gift$2,388 · 4 payments
  • Food and Beverage$764.20 · 6 payments
  • Travel and Lodging$576.42 · 1 payment
  • Education$350.00 · 1 payment

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

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