Clinicians affiliated with Texas Childrens Physician Group

671 clinicians on file with this group · most practice in Houston-Pasadena-The Woodlands, TX · PAC ID 4385722081

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

106 clinicians affiliated with Texas Childrens Physician Group are in the 2024 Medicare Part B data, 98 of them physicians. Data years with affiliated clinicians: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.

Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report

Affiliated clinicians by specialty, 2024

All specialties · Diagnostic Radiology (19) · Obstetrics & Gynecology (18) · Pediatric Medicine (16) · Nephrology (8) · Emergency Medicine (6) · Ophthalmology (6) · Cardiology (5) · Physician Assistant (4) · Gastroenterology (3) · Internal Medicine (3) · Allergy/ Immunology (2) · Certified Registered Nurse Anesthetist (CRNA) (2) · Critical Care (Intensivists) (2) · Infectious Disease (2) · Nurse Practitioner (2) · Hospitalist (1) · Interventional Radiology (1) · Neurology (1) · Nuclear Medicine (1) · Orthopedic Surgery (1) · Otolaryngology (1) · Psychiatry (1) · Rheumatology (1)

Specialty links go to the specialty in Houston-Pasadena-The Woodlands, TX.

Clinicians affiliated with Texas Childrens Physician Group, 2024

Alphabetical by last name; 101–106 of 106.

NameSpecialtyCity
Audra E Timmins, M.D.Obstetrics & GynecologyHouston, TX
Santiago O Valdes, MDPediatric MedicineHouston, TX
Meredith G VollmerPhysician AssistantBradenton, FL
Michael A Volz, M.D.Allergy/ ImmunologyAustin, TX
Helina T Wakwaya, M.D.Critical Care (Intensivists)Houston, TX
Codi D Wiener, MDObstetrics & GynecologyHouston, TX

Practice locations

Listed practice locations in Texas.

Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.

Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations