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Sherry Elizabeth McIlwain, WHNP-BC

NPI 1639419880ActiveIndividual· Nurse Practitioner, Women's Health· Palestine, TX

Nurse Practitioner, Women's Health (WHNP-BC) with Texas Specialty Physicians, practicing in Palestine, Texas. Their prescriptions cost Medicare Part D more than their services did: $14,749 for 302 claims, against $4,831 paid for services in 2024. Astellas Pharma US Inc was the largest of 2 companies reporting payments in 2025, $193.35 in all, mostly education. Lists Palestine Regional Medical Center as a hospital affiliation.

Overview

NPI1639419880
StatusActive
Entity typeIndividual
CredentialWHNP-BC
Sole proprietorYes
NPI issuedFeb 26, 2013
Last updated in NPPESFeb 26, 2013

Specialties and licenses

TaxonomyCodeLicenseState
Nurse Practitioner, Women's Health Primary363LW0102X735949TX

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 - Nurse Practitioner (TX)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients77
Services billed877 across 15 procedure codes
Paid by Medicare$4,831

Part D prescriptions in 2024

Prescriptions (claims)302 · 523 30-day fills
Patients79
Total drug cost$14,749
Generic share84% of claims

Medicare sources and data years

Education and affiliations

Graduation year2012
Medicare specialtyNurse Practitioner

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$193.35 · 5 payments from 2 companies
  • 2024$44.54 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Astellas Pharma US Inc$166.754
Pfizer Inc.$26.601

What the 2025 payments were for

  • Education$99.00 · 1 payment
  • Food and Beverage$94.35 · 4 payments

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

Other Nurse Practitioner, Women's Health providers in Palestine

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