Clinicians affiliated with Sierra Emergency Medical Group Inc

23 clinicians on file with this group · most practice in Sonora, CA · PAC ID 2860542479

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

17 clinicians affiliated with Sierra Emergency Medical Group Inc are in the 2024 Medicare Part B data, 15 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 · Emergency Medicine (15) · Physician Assistant (2)

Specialty links go to the specialty in Sonora, CA.

Clinicians affiliated with Sierra Emergency Medical Group Inc, 2024

Alphabetical by last name; 17.

NameSpecialtyCity
Cody Andersen, D.O.Emergency MedicineJohnstown, PA
Cesar A Aristeiguieta, MDEmergency MedicineSacramento, CA
Levi T Ballstaedt, D.OEmergency MedicineKingman, AZ
Amy Buckowski, MDEmergency MedicineLos Angeles, CA
Sarah M Dunn, M.D.Emergency MedicineModesto, CA
Steven M Joye, DOEmergency MedicineSonora, CA
Arica C Lemler, MDEmergency MedicineSacramento, CA
Michael E Lockwood, MDEmergency MedicineParadise, CA
Erica K Ogle, D.O.Emergency MedicineSpringfield, MA
Alexander Pingree, D.O.Emergency MedicineNellis Afb, NV
Joseph G Protacio, D.O.Emergency MedicineMadison Heights, MI
Stephanie Stuart, M.D.Emergency MedicineSonora, CA
Daniel TupyEmergency MedicineSonora, CA
Steve C Wang, DOEmergency MedicineQuincy, IL
Travis Wassermann, MDEmergency MedicineSonora, CA
Wendy Wicke, PA-CPhysician AssistantSonora, CA
Matthew A Williamson, PAPhysician AssistantTurlock, CA

Practice locations

Listed practice locations in California.

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