Clinicians affiliated with Physicians Referral Service

2,765 clinicians on file with this group · most practice in Houston-Pasadena-The Woodlands, TX · PAC ID 7911801410

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

2,327 clinicians affiliated with Physicians Referral Service are in the 2024 Medicare Part B data, 1,288 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 · Nurse Practitioner (538) · Physician Assistant (342) · Diagnostic Radiology (160) · Internal Medicine (124) · Certified Registered Nurse Anesthetist (CRNA) (120) · Pathology (120) · Medical Oncology (95) · Anesthesiology (94) · Radiation Oncology (89) · Hematology-Oncology (78) · General Surgery (35) · Emergency Medicine (32) · Surgical Oncology (30) · Neurology (26) · Plastic and Reconstructive Surgery (26) · Interventional Radiology (25) · Gastroenterology (24) · Hospice and Palliative Care (23) · Otolaryngology (23) · Dermatology (21) · Urology (20) · Infectious Disease (19) · Endocrinology (18) · Hematology (18) · Gynecological Oncology (17) · Cardiology (16) · Hematopoietic Cell Transplantation and Cellular Therapy (15) · Neurosurgery (15) · Psychologist, Clinical (13) · Critical Care (Intensivists) (12) · Pulmonary Disease (12) · Hospitalist (11) · Nuclear Medicine (11) · Anesthesiology Assistant (10) · Physical Medicine and Rehabilitation (9) · Certified Clinical Nurse Specialist (8) · Nephrology (8) · Thoracic Surgery (8) · Ophthalmology (7) · Oral Surgery (Dentist only) (7) · Orthopedic Surgery (7) · Obstetrics & Gynecology (6) · Pain Management (6) · Psychiatry (5) · Rheumatology (5) · Colorectal Surgery (Proctology) (4) · Family Practice (4) · Vascular Surgery (4) · Clinical Cardiac Electrophysiology (1) · General Practice (1) · Geriatric Medicine (1) · Geriatric Psychiatry (1) · Licensed Clinical Social Worker (1) · Medical Genetics and Genomics (1) · Pediatric Medicine (1)

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

Clinicians affiliated with Physicians Referral Service, 2024

Alphabetical by last name; 2,101–2,200 of 2,327.

NameSpecialtyCity
Ara A Vaporciyan, M.D.Thoracic SurgeryHouston, TX
Carolyn Varghese, FNP-CNurse PractitionerHouston, TX
Jaimole T Varghese, ANPNurse PractitionerHouston, TX
Jeena M Varghese, M.D.EndocrinologyHouston, TX
Lejin M Varghese, AGACNP-BCNurse PractitionerPasadena, TX
Praveen J Varghese, PA-CPhysician AssistantHouston, TX
Sheeja Varghese, FNPNurse PractitionerHouston, TX
Sigi S Varghese, APRN, FNP-CNurse PractitionerHouston, TX
Simi R Varghese, NPNurse PractitionerHouston, TX
Susy VargheseNurse PractitionerHouston, TX
Sheeba Varughese, FNPNurse PractitionerHouston, TX
Jean N Vauthey, M.D.Surgical OncologyHouston, TX
Francisco Vega-Vazquez, M.D.PathologyHouston, TX
Genevieve A Veneracion, APRNNurse PractitionerHouston, TX
Aradhana M Venkatesan, MDDiagnostic RadiologyHouston, TX
Rohit Venkatesan, MDMedical OncologyGalveston, TX
Marieberta Vidal, M.D.Hospice and Palliative CareHouston, TX
Patricia D Vidal, PAPhysician AssistantHouston, TX
Jayne M Viets, MDInternal MedicineHouston, TX
Nadarajah Vigneswaran, DMDOral Surgery (Dentist only)Houston, TX
Kanupriya Vijay, MDDiagnostic RadiologyHouston, TX
Raghunandan Vikram, M.D.Diagnostic RadiologyHouston, TX
Eduardo Vilar Sanchez, M.D., PH.D.Medical OncologyHouston, TX
Mark T Villa, MDPlastic and Reconstructive SurgeryHouston, TX
Michael D Villanueva, CRNACertified Registered Nurse Anesthetist (CRNA)Houston, TX
Shinta Poovathumkal Vincent, APRNNurse PractitionerHouston, TX
David J Vining, M.D.Diagnostic RadiologyHouston, TX
Sheeba Vinu, AGACNP-BCNurse PractitionerHouston, TX
George M Viola, MD MPHInfectious DiseaseHouston, TX
Kiran N Virani, MSN, FNP-CNurse PractitionerHouston, TX
Avery L Virgilio, APRNNurse PractitionerHouston, TX
Chitra Viswanathan, M.D.Diagnostic RadiologyHouston, TX
Lavanya Viswanathan, M.D., M.S.GastroenterologyHouston, TX
Ioannis Vlahos, M.D.Diagnostic RadiologyHouston, TX
Catherine Vo, PA-CPhysician AssistantHouston, TX
Cathy Vo, APRNNurse PractitionerHouston, TX
Chau C Vo, D.ODiagnostic RadiologyCharlottesville, VA
Natalie Vokes, M.D.Internal MedicineBoston, MA
Gretchen Von Allmen, MDNeurologyHouston, TX
Mindy M Vondenstein, PA-CPhysician AssistantHouston, TX
Leena M Von Hertell, MD, PHDDiagnostic RadiologyHouston, TX
Catherine N Vu, M.D.AnesthesiologyHouston, TX
Christine Vu, PA-CPhysician AssistantHouston, TX
Khanh D Vu, M.D.Internal MedicineHouston, TX
Kimberly Vu, PA-CPhysician AssistantHouston, TX
Thinh H Vu, MDDiagnostic RadiologyHouston, TX
Trien B Vu, M.D.Internal MedicineHouston, TX
Nicolaus A Wagner-Bartak, M.D.Diagnostic RadiologyHouston, TX
Steven G Waguespack, M.D.EndocrinologyHouston, TX
Kelly A Waldvogel, NPNurse PractitionerHouston, TX
Jocelyn I Walker, NPNurse PractitionerHouston, TX
Julie G Walker, RN FNP-CNurse PractitionerHouston, TX
Garrett L Walsh, M.D.Thoracic SurgeryHouston, TX
Jessica A Walsh, PA-CPhysician AssistantHouston, TX
Ronald S Walters, M.D.Medical OncologyHouston, TX
Natalie C Walton, M.D.Internal MedicineHouston, TX
Chenyang Wang, MDRadiation OncologyHouston, TX
Hongyan Wang, PA-CPhysician AssistantHouston, TX
Huamin Wang, M.D., PHDPathologyHouston, TX
Jane Wang, PA-CPhysician AssistantHouston, TX
Jianbo Wang, M.D.Hematology-OncologyChesterfield, MO
Lan Wang, M.D.GastroenterologyHouston, TX
Lei Wang, MDHospitalistHouston, TX
Luhua M Wang, M.D.Hematology-OncologyHouston, TX
Mi Wang, M.DAnesthesiologyHouston, TX
Mindy Wang, MDDiagnostic RadiologyHouston, TX
Rui Wang, MD, SCMOtolaryngologyHouston, TX
Run Wang, M.D.UrologyHouston, TX
Sa A Wang, M.D.PathologyHouston, TX
Shihuan K Wang, MDVascular SurgeryHouston, TX
Wei Wang, MDPathologyHouston, TX
Wei - Lien Wang, M.D.PathologyHouston, TX
Yaohong Wang, MD & PHDPathologyHouston, TX
Yinghong Wang, MD, PHDGastroenterologyHouston, TX
John F Ward, M.D.UrologyHouston, TX
Kenneth M Ward, APRNNurse PractitionerHouston, TX
Jennifer A Wargo, MDSurgical OncologyHouston, TX
Whitney D Warren, CRNACertified Registered Nurse Anesthetist (CRNA)Houston, TX
Rebecca E Waters, D.O.PathologyHouston, TX
Traci N Waters, CNPNurse PractitionerHouston, TX
Monica WattanaEmergency MedicineHouston, TX
Elizabeth S Waxman, APRNCertified Clinical Nurse SpecialistHouston, TX
Jacqueline M Weatherly, PA-CPhysician AssistantHouston, TX
Shiao-Pei Weathers, M.D.NeurologyHouston, TX
Olena O Weaver, M.D.Diagnostic RadiologyHouston, TX
Donna M Weber, M.D.Medical OncologyHouston, TX
Stacey S Webster, PA-CPhysician AssistantHouston, TX
William C Webster, CRNACertified Registered Nurse Anesthetist (CRNA)Houston, TX
Adriana H Wechsler, MDInternal MedicineHouston, TX
Brittany L Weeks, NPNurse PractitionerHouston, TX
Jeffrey S Wefel, PH.DPsychologist, ClinicalHouston, TX
Robert Wegner, M.D.AnesthesiologyHouston, TX
Mackenzie Wehner, M.D.DermatologyHouston, TX
Steven H Wei, PA-CPhysician AssistantHouston, TX
Christopher Weil, MDRadiation OncologyHouston, TX
Erica M Weilein, MDHospice and Palliative CareHouston, TX
Jeffrey S Weinberg, M.D.NeurosurgeryHouston, TX
Roi Weiser, MDSurgical OncologyHouston, TX
Annikka Weissferdt, MDPathologyHouston, TX
Steven P Weitzman, M.D.EndocrinologyHouston, 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