About
Christopher A. Simmons, MD brings over 25 years of experience in internal medicine and geriatrics to his Lafayette concierge practice. He earned his Bachelor of Science in Biochemistry and Biophysics at the University of California, Davis. He then completed his Doctor of Medicine at The University of Texas Medical Branch in Galveston. His internship and residency both took place at Pacific Presbyterian Hospital in San Francisco, where he trained in internal medicine with a strong emphasis on geriatrics from 1991 to 1995.
Before opening his own practice, Dr. Simmons cared for patients at John Muir Medical Group in Lafayette, where his office earned the highest patient satisfaction ratings in the entire John Muir Network. He also monitored and treated geriatric patients at local long-term care facilities. California Magazine recognized him as best in California for Internal Medicine in the Bay Area for 2022-2023. Dr. Simmons is passionate about healthy aging, longevity, dementia and Alzheimer's disease, osteoporosis, metabolic health, and exercise as medicine. He approaches every visit with active listening and open-ended questioning, and consults specialists for complex cases. His practice philosophy holds that good medicine thrives on genuine relationships, and he works to make every patient feel like part of his medical family.
Education & Training
Undergraduate
University of California, Davis – B.S. Biochemistry and Biophysics
Medical School
The University of Texas Medical Branch, Galveston, TX
Residency
Internal Medicine with emphasis on Geriatrics, Pacific Presbyterian Hospital, San Francisco, CA (1992–1995)
Additional Training
Internship in Internal Medicine, Pacific Presbyterian Hospital, San Francisco, CA (1991–1992)
Conditions Treated
Who is Dr. Simmons right for?
Dr. Simmons is a strong fit for adults seeking attentive, relationship-driven primary care. Patients managing chronic conditions such as type 2 diabetes, hypertension, cardiovascular disease, or osteoporosis benefit from his longitudinal approach. His geriatric expertise makes him especially well-suited for older adults navigating dementia, Alzheimer's disease, osteoarthritis, or osteopenia. Patients who value direct physician access and preventive planning will find his practice well-aligned with their goals.
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Frequently Asked Questions
Dr. Simmons treats a wide range of adult and geriatric conditions. These include type 2 diabetes, hypertension, cardiovascular disease, obesity, osteoporosis, osteopenia, osteoarthritis, dementia, Alzheimer's disease, anxiety, depression, and insomnia. His training in geriatric medicine gives him particular depth in age-related conditions.
Dr. Simmons completed his residency in internal medicine with an emphasis on geriatrics at Pacific Presbyterian Hospital in San Francisco. He has focused on geriatric care throughout his career of more than 25 years and treated geriatric patients at local long-term care facilities prior to opening his concierge practice.
Dr. Simmons earned his medical degree at The University of Texas Medical Branch in Galveston. He completed both his internship and residency at Pacific Presbyterian Hospital in San Francisco between 1991 and 1995, with residency training focused on internal medicine and geriatrics.
Dr. Simmons uses active listening and open-ended questioning to understand each patient's full picture. He confers with specialists when conditions are complex. He works to keep visits comfortable and unhurried, and he believes the doctor-patient relationship is the foundation of good care.
California Magazine named Dr. Simmons best in California for Internal Medicine in the Bay Area for 2022-2023. Before opening his own practice, his office at John Muir Medical Group in Lafayette earned the highest patient satisfaction ratings across the entire John Muir Network.
Dr. Simmons is passionate about healthy aging, longevity, dementia and Alzheimer's disease, osteoporosis, metabolic health, nutrition, exercise as medicine, and mental health. These interests shape both his clinical work and the educational health content he produces for his patients.
Yes, Dr. Simmons has deep experience with dementia and Alzheimer's disease. His geriatric training and long career treating older adults make him well-prepared to evaluate, monitor, and manage patients with memory and cognitive concerns.
The practice currently operates with a waitlist. Prospective patients can contact the practice directly through the new patient inquiry line to learn about availability and joining the waitlist.
Doctor profile last updated June 11, 2026