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William John Nicholas, MD

NPI 1356387484ActiveIndividual· Internal Medicine, Interventional Cardiology· Joplin, MO

Internal Medicine, Interventional Cardiology (MD) with Freeman-Oak Hill Health System and 2 other groups, practicing in Joplin, Missouri. Their prescriptions cost Medicare Part D more than their services did: $1,294,408 for 12,358 claims, against $562,698 paid for services in 2024. Abbott Laboratories was the largest of 8 companies reporting payments in 2025, $2,260 in all, mostly travel and lodging. Lists Ascension St John Jane Phillips and 4 other hospitals as hospital affiliations.

Overview

NPI1356387484
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJun 20, 2006
Last updated in NPPESAug 7, 2026
Certified by providerAug 7, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Interventional Cardiology Primary207RI0011X110180MO

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 - Cardiovascular Disease (Cardiology) (KS); Practitioner - Cardiovascular Disease (Cardiology) (MO)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients3,502
Services billed11,141 across 174 procedure codes
Paid by Medicare$562,698

Part D prescriptions in 2024

Prescriptions (claims)12,358 · 27,279 30-day fills
Patients1,638
Total drug cost$1,294,408
Generic share87% of claims

Medicare sources and data years

Education and affiliations

Graduation year1981
Medicare specialtyCardiovascular Disease (Cardiology)

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$2,260 · 14 payments from 8 companies
  • 2024$5,056 · 48 payments from 11 companies

Top paying companies in 2025

What the 2025 payments were for

  • Travel and Lodging$1,569 · 3 payments
  • Food and Beverage$691.27 · 11 payments

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

Other interventional cardiologists in Joplin

All interventional cardiologists in Missouri