Leonard J. Marks, M.D.

This physician directory is provided as a convenience to you. It is not intended as a recommendation, referral, or endorsement of any particular provider. Physicians are not employees or agents of Sutter Health or its affiliates. The information is submitted by each doctor and we make no guarantee or warrantee as to the accuracy of the information. Sutter Health is not responsible for any loss or damage caused by your reliance on this information. You should verify the accuracy of the information directly with the physician's office.

All doctors on this site are affiliated with Sutter Health's network of care - members of the medical staff of Sutter-affiliated hospitals, affiliated medical groups, and independent practice associations that participate in clinical initiatives. Doctors do not pay a fee to be included in this directory. If a physician ceases to fall within one of the categories noted, he/she would no longer be listed on the site. Doctors meeting your search criteria are presented in alphabetical order by last name, or by geographic proximity if a zip code has been used as search criterion.