About Dr. John Muir Medical Group (Corporate Office)

Founded in 1996 by 30 local primary care physicians, John Muir Medical Group (JMMG) now comprises more than 350 clinicians who provide primary care services exclusively for the John Muir Physician Network Foundation. John Muir Medical Group staffs a robust hospitalist program, urgent cares and over 35 continuity care sites stretching from Brentwood to Berkeley and Concord to Livermore.

Medical Disclaimer: The information on this website is for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

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Dr. Longton and he's staff with Lisa and the crew always take good care of me.

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