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Cogent Family Healthcare

Stephen J Sims, MD

Family Medicine located in Mountain View, CA

    1. "Dr. Sims reminds me of how things were in the good old days."

    2. Richard O. Yelp

    1. "Dr Sims has been my primary care physician for at least 5 years & I could not be happier"

    2. Jonathan B. Yelp

    1. "He is the best primary care physician I have ever had."

    2. Grace T. Yelp

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Welcome to Cogent Family Healthcare

Cogent Family Healthcare offers comprehensive primary care for you and your family. Our mission is to help every patient prevent disease, manage chronic illness, improve overall health, and slow the aging process through state-of-the-art medical care that is based upon the best research in the fields of conventional primary care and personalized medicine.


Dr. Sims

Cogent Family Healthcare in Mountain View, California, offers comprehensive family primary health care services that focus on disease prevention. Board-certified family physician Stephen Sims, MD, and the staff go beyond traditional health screenings to reduce risk factors for disease and chronic health conditions. They use the most advanced diagnostic technologies to assess patient health and offer a variety of treatments for existing health conditions.

Dr. Sims strives to educate patients with better insights into their health and which actions are useful and which ones are not. Cogent thinking is intended to mean providing you with a clearer understanding of your health, to inspire actions to improve it.

Patients who have health conditions like thyroid disease, diabetes, and chronic migraines benefit from the customized treatment plans designed by the Cogent Family Healthcare medical team and the personalized approach to disease management. Comprehensive care is also available for acute illnesses, like colds, flu, and infections.

If you’re looking for a caring family physician and want to learn more about the benefits of advanced health screenings, schedule a consultation at Cogent Family Healthcare today by phone or by using the online booking feature.

Advanced Health Screenings

Dr. Stephen Sims goes beyond traditional preventive health screenings, offering advanced screenings to detect chronic conditions such as cardiovascular disease, diabetes, and cancer, as well as to identify risk factors that can cause life-threatening acute episodes of heart attack and stroke. Our goal at Cogent Family Healthcare is to prevent these medical crises altogether and help you live as healthy a life as possible.





We accept Medicare and all Medicare secondary plans (Other than MediCal). We do not accept MediCal as primary. If you want to know whether we are in network, please verify that tax ID 56-260-5608 is in network. Using my name may not give you the right answer. Only this tax ID will be accepted as in network. As of January 1, 2023, we will not accept any HMO or Medicare Advantage plans.

As a result of the compassionate care we deliver at Cogent Family Healthcare in Mountain View, California, we develop lasting relationships with our patients. Many times we hear from our patients about how Dr. Sims and the staff at Cogent Family Healthcare have helped them. For those of you we hear from, we thank you for passing along your kind words.

Here are some of our favorites:


Words from our patients

  • "I have been with Dr. Sims for many years.. I will highly recommend him.. He takes his time to make sure you get all the information you require and I never feel rushed."

    Silvia K.
  • "Unlike other physicians, Dr. Sims isn't over-reliant on prescribing medicine. He considers diet, vitamins and even lifestyle."

    Jonathan B.
  • "From the latest medical studies to referrals to the leading specialists, Dr Sims "team approach" to medicine is remarkable. "

    Michael L.
  • "Dr. Sims is an amazing doctor. He is kind, intelligent, and seems to genuinely care about his patients well being."

    Brian C.


Cogent Family Healthcare
525 South Drive, Suite #107
Mountain View, CA 94040
Phone: 650-386-0386
Fax: 650-386-0468

Office Hours

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