Providers
24
Locations
1
Specialties
3
Insurance Plans
16
About Sierra Emergency Medical Group Inc
Background and practice information
Sierra Emergency Medical Group INC is a established group medical practice based in Sonora, CA, with 24 affiliated healthcare providers.
The practice brings together providers across several specialties, including emergency medicine, nurse practitioner, and physician assistant. Its providers are in-network with 16 insurance plans, though coverage varies by individual provider and should be confirmed before scheduling.
Across its providers, the practice has a solid average Merit-based Incentive Payment System (MIPS) score of 75.0 out of 100, a quality measure published by the Centers for Medicare & Medicaid Services.
Practice Locations
1 location
Sierra Emergency Medical Group IncPrimary
1000 GREENLEY RD, Sonora, CA 953705200
(209) 536-5000
Affiliations
Hospitals where providers at Sierra Emergency Medical Group Inc hold admitting privileges
Insurance Networks
Accepted insurance plans and networks
Sierra Emergency Medical Group Inc accepts 52 plans from 9 insurers, including Cigna, UnitedHealthcare, Aetna.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Quality & Performance
Specialties at Sierra Emergency Medical Group Inc
Provider specialties represented at this practice
Healthcare Providers
24 providers practice here
Cody Andersen, DO
Emergency Medicine
Sonora, CA
Cesar Aristeiguieta, MD
Emergency Medicine
Sonora, CA
Levi Ballstaedt, DO
Emergency Medicine
Sonora, CA
Amy Buckowski, MD
Emergency Medicine
Sonora, CA
Sarah Dunn, MD
Emergency Medicine
Sonora, CA
Steven Joye, DO
Emergency Medicine
Sonora, CA
Arica Lemler, MD
Emergency Medicine
Sonora, CA
Michael Lockwood, MD
Emergency Medicine
Sonora, CA
Erica Ogle, DO
Emergency Medicine
Sonora, CA
Ryan Pappal, MD
Emergency Medicine
Sonora, CA
Alexander Pingree, DO
Emergency Medicine
Sonora, CA
Joseph Protacio, DO
Emergency Medicine
Sonora, CA
Anantha Singarajah, DO
Emergency Medicine
Sonora, CA
Roy Stone
Emergency Medicine
Sonora, CA
Stephanie Stuart, MD
Emergency Medicine
Sonora, CA
Daniel Tupy, MD
Emergency Medicine
Sonora, CA
Steve Wang, DO
Emergency Medicine
Sonora, CA
Travis Wassermann, MD
Emergency Medicine
Sonora, CA
Kelsey Callahan, NP
Nurse Practitioner
Sonora, CA
Renee Hartsman, NP
Nurse Practitioner
Sonora, CA
Susan Zuniga, NP
Nurse Practitioner · Telehealth
Sonora, CA
Richul Kabir, PA
Physician Assistant
Sonora, CA
Wendy Wicke, PA
Physician Assistant
Sonora, CA
Matthew Williamson, PA
Physician Assistant
Sonora, CA
Frequently Asked Questions
Common questions about Sierra Emergency Medical Group Inc
How many providers are at Sierra Emergency Medical Group INC?
Sierra Emergency Medical Group INC has 24 affiliated healthcare providers. You can browse the full provider roster, with specialties and locations, on this page.
What specialties does Sierra Emergency Medical Group INC offer?
The practice includes providers in emergency medicine, nurse practitioner, and physician assistant. Use the specialty filter on the provider list to find a specific type of provider.
What insurance does Sierra Emergency Medical Group INC accept?
Providers at Sierra Emergency Medical Group INC are collectively in-network with 16 insurance plans. Acceptance varies by individual provider, so confirm your specific plan with the office before your visit.
Does Sierra Emergency Medical Group INC have a quality rating?
The practice's providers have an average MIPS quality score of 75.0 out of 100, based on Centers for Medicare & Medicaid Services data. MIPS measures performance across quality, cost, care coordination, and use of health technology.
Where is Sierra Emergency Medical Group INC located?
Sierra Emergency Medical Group INC's primary location is in Sonora, CA. See the contact section for the full address and phone number.
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