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Mary Withoelter, NURSE PRACTITIONER

NPI 1982188389ActiveIndividual· Nurse Practitioner· Ofallon, MO

Nurse Practitioner (NURSE PRACTITIONER) with Physician Groups Lc and 1 other group, practicing in Ofallon, Missouri. 247 Medicare patients in 2024, $35,964 paid; nearly all of their 373 Part D prescriptions were generic (95%). Pfizer Inc. reported $24.86 in payments in 2025, mostly food and beverage.

Overview

NPI1982188389
StatusActive
Entity typeIndividual
CredentialNURSE PRACTITIONER
Sole proprietorNo
NPI issuedSep 20, 2018
Last updated in NPPESSep 18, 2025
Certified by providerSep 18, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Nurse Practitioner Primary363L00000X2019033706MO
Nurse Practitioner, Family363LF0000X2019033706MO

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 - Nurse Practitioner (MO); Practitioner - Nurse Practitioner (TN)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients247
Services billed2,206 across 109 procedure codes
Paid by Medicare$35,964

Part D prescriptions in 2024

Prescriptions (claims)373 · 375 30-day fills
Patients217
Total drug cost$5,090
Generic share95% of claims

Medicare sources and data years

Education and affiliations

Graduation year2018
Medicare specialtyNurse Practitioner

Medical groups

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$24.86 · 1 payment from 1 company
  • 2024$428.61 · 4 payments from 4 companies

Top paying companies in 2025

CompanyAmountPayments
Pfizer Inc.$24.861

What the 2025 payments were for

  • Food and Beverage$24.86 · 1 payment

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

Other Nurse Practitioner providers in Ofallon

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