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William James Parker, M.D.

NPI 1295778686ActiveIndividual· Surgery· San Antonio, TX

Surgery (M.D.) in San Antonio, Texas, trained at University of Texas Medical School at Houston (class of 1989). Mostly services rather than prescriptions: Medicare paid $621,524 for 377 patients in 2024, with only 17 Part D claims. Angiodynamics, Inc. was the largest of 3 companies reporting payments in 2025, $6,720 in all, mostly device and supply loans.

Overview

NPI1295778686
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 13, 2006
Last updated in NPPESMar 12, 2024
Certified by providerMar 12, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Surgery Primary208600000XH8309TX

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 - General Surgery (TX)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients377
Services billed1,733 across 30 procedure codes
Paid by Medicare$621,524

Part D prescriptions in 2024

Prescriptions (claims)17 · 23 30-day fills
Total drug cost$9,421

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Texas Medical School at Houston
Graduation year1989
Medicare specialtyGeneral Surgery

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$6,720 · 12 payments from 3 companies
  • 2024$9,902 · 11 payments from 5 companies

Top paying companies in 2025

What the 2025 payments were for

  • Long term medical supply or device loan$6,293 · 4 payments
  • Food and Beverage$426.50 · 8 payments

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

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