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Kari Heusinkveld Fay, M.D.

NPI 1023236304ActiveIndividual· Obstetrics & Gynecology· San Marcos, TX

Obstetrics & Gynecology (M.D.) in San Marcos, Texas, trained at University of Texas Medical School at Houston (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $29,304 for 303 claims, against $15,747 paid for services in 2024. Organon LLC was the largest of 9 companies reporting payments in 2025, $3,428 in all, mostly compensation for serving as faculty or as a speaker for a me.

Overview

NPI1023236304
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedApr 23, 2007
Last updated in NPPESOct 7, 2011

Specialties and licenses

TaxonomyCodeLicenseState
Obstetrics & Gynecology Primary207V00000XN8507TX

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 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Obstetrics/Gynecology (TX)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients71
Services billed131 across 15 procedure codes
Paid by Medicare$15,747

Part D prescriptions in 2024

Prescriptions (claims)303 · 600 30-day fills
Patients93
Total drug cost$29,304
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Texas Medical School at Houston
Graduation year2007
Medicare specialtyObstetrics/Gynecology

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$3,428 · 19 payments from 9 companies
  • 2024$273.80 · 15 payments from 8 companies

Top paying companies in 2025

CompanyAmountPayments
Organon LLC$3,1275
Abbvie Inc.$77.873
Sumitomo Pharma America, Inc.$55.882
Pfizer Inc.$42.942
Biogen, Inc.$36.862

What the 2025 payments were for

  • Compensation for serving as faculty or as a speaker for a medical education program$3,042 · 2 payments
  • Food and Beverage$385.69 · 17 payments

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

Other Obstetrics & Gynecology providers in San Marcos

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