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

Sara Holzbauer De Castellanos, DO

Individual provider Obstetrics & Gynecology Physician · NPI 1194929927

Sara Holzbauer De Castellanos, DO practises Obstetrics/Gynecology in Stephenville, Texas. Graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 2007, 19 years ago. Practices with Texas Health Physicians Group, a 1,356-clinician group and accepts Medicare assignment. Licensed in Michigan, South Dakota and Texas.

Years since qualifying
19
Trained at
Kansas City University of Med & Biosciences, College of Osteo Med
Licensed in
MI, SD, TX
In the registry since
2007
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

725 N Graham St Ste 4
Stephenville, TX 76401-3100
Phone: (254) 965-1156
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence T2340 (TX)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 8110 (SD)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 5101017199 (MI)

Record details

NPI number1194929927
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 14, 2007
Last updated in NPPESSeptember 8, 2021
Certification dateSeptember 8, 2021

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolKANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED
Graduated 2007 (19 years in practice)
Group practice Texas Health Physicians Group — 1356 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients32
Services billed 89 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Education $3,000 2 payments · educational material or training, not a fee
Travel and Lodging $578 4 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $159 4 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.

Colleagues at Texas Health Physicians Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1356 clinicians in the practice; 12 are shown here.

Other providers in Stephenville