Clinicians affiliated with Ascension Seton Northwest

Acute Care Hospitals · Voluntary non-profit - Private · 11113 Research Boulevard, Austin, TX 78759 · Austin-Round Rock-San Marcos, TX · CCN 450867

Affiliation snapshotNovember 2, 2026CMS Doctors and Clinicians Facility Affiliation file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service

262 clinicians affiliated with Ascension Seton Northwest are in the 2024 Medicare Part B data (298 listed in the affiliation file).

Each clinician's exact figures are in their Physician Report, from their page. View sample report · Already purchased? Open your report (earlier Local report and passes)

Affiliated clinicians by specialty, 2024

All specialties · Anesthesiology (56) · Certified Registered Nurse Anesthetist (CRNA) (56) · Urology (17) · Internal Medicine (15) · Nurse Practitioner (14) · Orthopedic Surgery (13) · Cardiology (10) · Gastroenterology (9) · Otolaryngology (9) · Pathology (9) · General Surgery (8) · Physician Assistant (7) · Obstetrics & Gynecology (5) · Emergency Medicine (4) · Neurosurgery (3) · Oral Surgery (Dentist only) (3) · Pulmonary Disease (3) · Certified Clinical Nurse Specialist (2) · Hand Surgery (2) · Hematology-Oncology (2) · Hospitalist (2) · Infectious Disease (2) · Diagnostic Radiology (1) · Family Practice (1) · General Practice (1) · Interventional Cardiology (1) · Nephrology (1) · Neurology (1) · Pain Management (1) · Physical Medicine and Rehabilitation (1) · Podiatry (1) · Radiation Oncology (1) · Vascular Surgery (1)

Clinicians affiliated with Ascension Seton Northwest, 2024

Alphabetical by last name; 201–262 of 262.

NameSpecialtyCity
Paul J Roach, M.D.Interventional CardiologyAustin, TX
Matthew Roberts, MDAnesthesiologyAustin, TX
Steven C Robertson, MDAnesthesiologyDallas, TX
Joshua J Rodriguez, CRNACertified Registered Nurse Anesthetist (CRNA)Seguin, TX
Chase M Romere, MDOrthopedic SurgeryLeander, TX
Ming-Shing H Salas, MDAnesthesiologyAustin, TX
Mauricio A Sardan, MDInternal MedicineAustin, TX
John T Schlitt, MDAnesthesiologyAustin, TX
John P Schmittner, MDCardiologyTemple, TX
William R Schultz, MDOrthopedic SurgeryAustin, TX
Barbara D Sebastian, M.D.AnesthesiologyAustin, TX
Andrew T Seider, CRNACertified Registered Nurse Anesthetist (CRNA)Austin, TX
Robert K Seiler, MDHospitalistAustin, TX
Wakeelah N Sharif, CRNACertified Registered Nurse Anesthetist (CRNA)Austin, TX
Kashyap Shatagopam, MDUrologyGeorgetown, TX
Hyon C Shin, M.D.General SurgeryAustin, TX
Junaid Siddiqui, MDGastroenterologyCedar Park, TX
John T Sigalos, MDUrologyAustin, TX
Donovan H Sigerfoos, DOInternal MedicineAustin, TX
Ravi Singh, M.D.AnesthesiologyChicago, IL
Jacob A Smith, M.D.PathologyAustin, TX
John B Smoot, M.D.Orthopedic SurgeryAustin, TX
Jason R Somogyi, M.D.Orthopedic SurgeryKyle, TX
Ramesh Srinivasan, MDGastroenterologyDenton, TX
Thomas J Stanciu, MDAnesthesiologyAustin, TX
Christopher A Stearns, MDInternal MedicineAustin, TX
Daniel T Stewart, MDHand SurgeryAustin, TX
Rebekah R Strnad, CRNACertified Registered Nurse Anesthetist (CRNA)Dallas, TX
Sara J Strother, FNP-CNurse PractitionerAustin, TX
Yue SuCertified Registered Nurse Anesthetist (CRNA)Austin, TX
Varun Sundaram, MDUrologyAustin, TX
George F Tabi, M.D.General PracticeYoungstown, OH
Katie L Taggart, CRNACertified Registered Nurse Anesthetist (CRNA)Austin, TX
Stephanie J TaylorCertified Registered Nurse Anesthetist (CRNA)Houston, TX
Matthew Teicher, M.D.AnesthesiologyAustin, TX
Lauren N Thomas, AGACNP-BCNurse PractitionerAustin, TX
Tracy B Thomas, NPNurse PractitionerAustin, TX
Christopher S Thu, MDAnesthesiologyAustin, TX
Luke R Tibbitts, DDSOral Surgery (Dentist only)Austin, TX
Rachel Tink, FNPNurse PractitionerAustin, TX
Juan P Torres, M.D.Internal MedicinePonce, PR
Steven H Tran, CRNACertified Registered Nurse Anesthetist (CRNA)Dallas, TX
Allison A Urrutia, MDObstetrics & GynecologyAustin, TX
Gregory VersteegOrthopedic SurgeryRound Rock, TX
Thomas R Vetter, MDPain ManagementAustin, TX
Justin W Vickery, MDOrthopedic SurgeryLeander, TX
Scott A Waggoner, CRNACertified Registered Nurse Anesthetist (CRNA)Dallas, TX
Christopher S Wahal, M.D.AnesthesiologyAustin, TX
Jason R Wallace, M.D.Diagnostic RadiologyAustin, TX
Stephen W Watkins, CRNACertified Registered Nurse Anesthetist (CRNA)Austin, TX
Lauren E Werchan, CRNACertified Registered Nurse Anesthetist (CRNA)Austin, TX
Cherese Wheelock, CRNACertified Registered Nurse Anesthetist (CRNA)Austin, TX
Eric J White, MDAnesthesiologyAustin, TX
Chad W Whited, M.D.OtolaryngologyAustin, TX
Michael WilliamsonPhysician AssistantJacksonville, FL
Megan H Wollan, MDAnesthesiologyAustin, TX
Genevieve L Woolsey, CRNACertified Registered Nurse Anesthetist (CRNA)Austin, TX
Martin W Yee, M.DPhysical Medicine and RehabilitationHarker Heights, TX
Lindsay E Young, MDOtolaryngologyAustin, TX
Michael P Zaleski, D.O.PathologyAustin, TX
Mei Zhou, CRNACertified Registered Nurse Anesthetist (CRNA)Austin, TX
Nida ZiaHospitalistChillicothe, OH

Affiliation comes from the CMS Doctors and Clinicians Facility Affiliation file, hospital rows only; name, address and type from the CMS Hospital General Information file. CMS does not publish an end-of-year archive of the affiliation file, so the current snapshot is applied to the latest data year. A clinician listed with several hospitals or groups appears on each of their pages. How hospital pages are built