Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Kari Heusinkveld Fay, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1023236304

Kari Heusinkveld Fay, MD practises Obstetrics/Gynecology in San Marcos, Texas. Graduated from University of Texas Medical School at Houston in 2007, 19 years ago. Practices with Unified Womens Healthcare of Texas PLLC, a 181-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
19
Trained at
University of Texas Medical School at Houston
Licensed in
TX
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1305 Wonder World Dr Ste 209
San Marcos, TX 78666-7541 Not confirmed with CMS for 14 years — call before visiting
Phone: (512) 396-7575
Fax: (512) 396-7555
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence N8507 (TX)

Record details

NPI number1023236304
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 23, 2007
Last updated in NPPESOctober 7, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT HOUSTON
Graduated 2007 (19 years in practice)
Group practice Unified Womens Healthcare Of Texas Pllc — 181 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of the uterus 1–10 times
Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients71
Services billed 131 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for serving as faculty or as a speaker for a medical education program $3,042 2 payments
Food and Beverage $386 17 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Christus Santa Rosa Hospital-San Marcos Hospital · San Marcos, TX
  • Resolute Health Hospital Hospital · New Braunfels, TX

Colleagues at Unified Womens Healthcare of Texas PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 181 clinicians in the practice; 12 are shown here.

Other providers in San Marcos