Our Locations
Health Plan of San Joaquin / Mountain Valley Health Plan (“Health Plan”) is part of the Two-Plan model and serves as the local initiative in Alpine, El Dorado, San Joaquin, and Stanislaus Counties. We currently have offices in French Camp, Modesto, and Placerville, California serving our diverse communities.
Alpine County
Alpine County measures approximately 743 square miles. The state of Nevada borders the county to the east; Mono and Tuolumne counties lie to the south; Amador and Calaveras counties border to the west; and El Dorado County meets Alpine’s northern boundary. The main routes in Alpine County are state highways 88, 89, and 4.
The county hosts the smallest population of California’s 58 counties, with approximately 1,280 residents in 2004, as estimated by the California Department of Finance. Most of the population is concentrated around a few mountain communities: Markleeville, Woodfords, Bear Valley, and Kirkwood. Residents enjoy a rural lifestyle, with the convenience of several city areas in the neighboring counties. Markleeville is the county seat, and home to many of the county’s offices.
Alpine County
4327 Golden Center Drive
Placerville, CA 95667
El Dorado County
El Dorado, Spanish for “Golden One”, was one of the original 27 Counties of the State of California, formed by an Act on February 18, 1850. Coloma was the first County seat of El Dorado County, but when the gold became scarce, the County seat was moved to Placerville in 1857.
El Dorado County, located in east-central California, encompasses 1,805 square miles of rolling hills and mountainous terrain. There are two municipalities within El Dorado County. The largest city in the County is the City of South Lake Tahoe. The City of Placerville, the County seat, is located 45 miles northeast of Sacramento, the State capital. The City of Placerville has a 2023 population of 10,656. The remainder of the County’s approximate 156,000 residents lives outside of the two incorporated areas.
El Dorado County
4327 Golden Center Drive
Placerville, CA 95667
San Joaquin County
French Camp is located in San Joaquin County, part of the Central Valley of California, and one of the original counties of the state, formed in 1850. With a 2010 Census population of 685,306, this is a dynamic, multi-ethnic and multi-cultural community situated along the San Joaquin Delta waterway that connects to the San Francisco Bay and the Sacramento and San Joaquin Rivers.
San Joaquin County is located 60 miles east of the San Francisco Bay area, 83 miles east of San Francisco, and 45 miles south of Sacramento.
San Joaquin County
Health Plan Headquarters
7751 South Manthey Road
French Camp, CA 95231-9802
Stanislaus County
Modesto is the 16th largest city in California with over 202,751 citizens. Modesto prides itself on quality of community life, educational opportunities and multi-cultural lifestyles with mild weather year-round. It offers diversity and facilities of a metropolitan city while maintaining an atmosphere of old-fashioned hospitality and small town charm.
Modesto offers the full spectrum of arts and entertainment from talented local artists to international touring stars. The city boasts family-friendly attractions, festivals, and much more.
Stanislaus County
1025 J Street
Modesto, CA 95354
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Contact us today! Customer Service Representatives are available to assist you Monday – Friday from 8:00 a.m. – 5:00 p.m.
Posted on September 24th, 2014 and last modified on April 11th, 2025.
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