Clinicians affiliated with Adventist Health St Helena

Acute Care Hospitals · Voluntary non-profit - Private · 10 Woodland Road, Saint Helena, CA 94574 · Napa, CA · CCN 050013

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

256 clinicians affiliated with Adventist Health St Helena are in the 2024 Medicare Part B data (288 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 · Internal Medicine (22) · Physician Assistant (22) · Hospitalist (20) · Nurse Practitioner (20) · Diagnostic Radiology (19) · Family Practice (18) · Certified Registered Nurse Anesthetist (CRNA) (17) · Emergency Medicine (16) · Cardiology (9) · Critical Care (Intensivists) (6) · General Surgery (6) · Orthopedic Surgery (6) · Nephrology (5) · Pathology (5) · Radiation Oncology (5) · Anesthesiology (4) · Interventional Cardiology (4) · Psychiatry (4) · Hematology-Oncology (3) · Infectious Disease (3) · Otolaryngology (3) · Pain Management (3) · Physical Medicine and Rehabilitation (3) · Podiatry (3) · Urology (3) · Cardiac Surgery (2) · Clinical Cardiac Electrophysiology (2) · Medical Oncology (2) · Neurology (2) · Obstetrics & Gynecology (2) · Ophthalmology (2) · Plastic and Reconstructive Surgery (2) · Thoracic Surgery (2) · Dermatology (1) · Endocrinology (1) · Gastroenterology (1) · Hand Surgery (1) · Interventional Pain Management (1) · Interventional Radiology (1) · Neurosurgery (1) · Preventive Medicine (1) · Sleep Medicine (1) · Undefined Physician type (1) · Vascular Surgery (1)

Clinicians affiliated with Adventist Health St Helena, 2024

Alphabetical by last name; 201–256 of 256.

NameSpecialtyCity
Edmund W Schumacher, D.P.M.PodiatryNapa, CA
Lily Naz Shamsnia, MDObstetrics & GynecologyNew Orleans, LA
Sky P Shanks, D.P.M.PodiatryNapa, CA
Marc R Shapiro, MDInternal MedicineClearlake, CA
Linda E Sharp, M.D.Internal MedicineTorrance, CA
Hassan Sheikh Moghaddas, M.DGeneral SurgeryClearlake, CA
Atul K Sheth, MDPsychiatryBakersfield, CA
Alexis Shiffer, NPNurse PractitionerSaint Helena, CA
Saif H Siddiqi, M.D.Diagnostic RadiologySanta Ana, CA
Javeed Siddiqui, MD, MPHInternal MedicineRoseville, CA
Gurinder S Sidhu, MDMedical OncologyBrooklyn, NY
Diane S Silver, MDDermatologyNapa, CA
Annabel P Slovek, NPNurse PractitionerPhoenix, AZ
James P Srebro, MDCardiologyNapa, CA
Marissa Stein, CRNACertified Registered Nurse Anesthetist (CRNA)Saint Helena, CA
Lenae StevensPhysician AssistantPittsburg, CA
Benjamin E Stone, D.O.Emergency MedicineTravis Afb, CA
David G Streeter, M.D.Internal MedicineSonoma, CA
Jessica E Strock, PA-CPhysician AssistantSaint Helena, CA
Thomas E Suard, M.D.Family PracticeNapa, CA
Gordon Sweeney, M.D.HospitalistSaint Helena, CA
Albert K Szeto, MDDiagnostic RadiologyLynwood, CA
Hendrik Ryan L Tan, DPMPodiatrySanta Rosa, CA
Kundai K Tanganyika, M.DCardiologyClearlake, CA
Elizabeth M Tapen, MDRadiation OncologyBig Sky, MT
Miriam L Tapia, RN, PHN, NP-C, MSNNurse PractitionerPalo Alto, CA
David J Tate, MDRadiation OncologySaint Helena, CA
Alicia N Teferi, M.DGeneral SurgeryClearlake, CA
Kokeb Teshome, M.D.Internal MedicinePetaluma, CA
Austin TidwellHospitalistJohnson City, NY
Elizabeth P Tito, MDGeneral SurgerySanta Rosa, CA
Lucian TomaCertified Registered Nurse Anesthetist (CRNA)Saint Helena, CA
Carla A Toms, MDHospitalistHarbor City, CA
Joshua W Toppenberg, CRNACertified Registered Nurse Anesthetist (CRNA)Saint Helena, CA
Loan N Tran, MDRadiation OncologyPleasant Hill, CA
Debra L Trnavsky-Hobbs, M.D.HospitalistNapa, CA
Kiran M Ubhayakar, M.D.Critical Care (Intensivists)Calistoga, CA
Ari Umutyan, M.D.Hematology-OncologySaint Helena, CA
Vishal VakaniFamily PracticeUtica, NY
Juan C Vasquez, MDGeneral SurgerySaint Helena, CA
Rachael N Vasquez, AG-ACNPNurse PractitionerSaint Helena, CA
Anthony R Victorio, M.D.PathologyModesto, CA
John Vidrih, M.D.HospitalistClearlake, CA
David Vierra, MDHospitalistNapa, CA
John A Vigilante, M.D.Diagnostic RadiologyTwentynine Palms, CA
Deron T Warren, D.O.Emergency MedicineMariposa, CA
Richard D Waters, MDDiagnostic RadiologyMilwaukee, WI
Jacqueline S Weisbein, D.O.Pain ManagementNapa, CA
Jonathan W Wheeler, MDFamily PracticeSaint Helena, CA
David WilliamsEmergency MedicineLos Angeles, CA
Andrew Wilson, PAPhysician AssistantNapa, CA
Charles R Wilson, M.D.General SurgerySaint Helena, CA
Andrew K Wong, MDInterventional CardiologyNapa, CA
Merrilyn Yang, PMHNP-BCNurse PractitionerClearlake, CA
Sara YusufalyInternal MedicineLake Elsinore, CA
Mark Zuckerman, M.D.PathologyWinchester, MA

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