Personalized healthcare in Marin

A nurturing doctor-patient partnership

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Our Services

Primary Care

Prevention & Screening, Internal Medicine, Gynecology, Geriatrics, Acute Care and more.

See all of our Primary Care services

Eating Disorders

Expert medical care for adults & adolescents with eating disorders and eating-related issues.

See all of our Eating Disorder services

Other Services

Professional consultation, supervision, second opinions, expert witness and other services.

See all of our other services




Dr. Lowenthal really takes the time to check-in and learn about the whole picture of what’s going on at any given time and I really appreciate that effort as it’s a rare experience in most medical practices today.
— Rainey S.


A doctor who is here for you.

At our practice, we treat you like family.

Dr. Lowenthal will take the time to get to know you personally and will assist you in making the best medical decisions in the context of your unique history.

As a concierge practice, office visits are as long as you need and you will enjoy 24/7 access to Dr. Lowenthal by phone and email. Your membership includes a comprehensive annual physical as well as a number of additional services.


Be Well.

We believe in a hands on approach and are happy to meet with you to assess if we are the right fit for your health care needs.

Get your free consultation today!

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Our Location

Adjacent to the freeway in Mill Valley, our office is easily accessible from all areas of North Bay, East Bay and San Francisco.

(415) 569-4918

655 Redwood Highway
Suite #364
Mill Valley, CA 94941