Shawn Hassler, MD
Internal Medicine located near Union Square, San Francisco, CA.
For appointment requests, please phone our office.
New patients, please download and complete the New Patient Registration Forms.
Shawn Hassler, MD, is board-certified in internal medicine at Optimus Medical Group Inc, which serves the San Francisco community. He completed his medical degree at the University of Miami School of Medicine in Florida. Following this, he completed his internship and residency in internal medicine at the California Pacific Medical Center in San Francisco.
With more than 20 years of experience, Dr. Hassler continues to keep up to date with the newest medical advances, including certification by the American Academy of HIV Medicine. He does all this with the goal of helping every patient restore their emotional and physical well-being by properly educating them on their health and taking the time to address their questions and concerns.
Dr. Hassler’s rave online reviews are a testament to his open-minded and knowledgeable bedside manner. His goal is to have Optimus Medical Group Inc. be a place where people of all backgrounds can be treated with the peace of mind that they’re in a compassionate and comfortable environment.
What People Are Saying
“I would recommend this practice to anyone seeking compassionate care from an excellent provider.”
— Andrew J.
“Good people. It is enjoyable to interact with everyone there, and you know they have your best interest at heart.”
— Logan B.
“His approach as a primary care provider is refreshing; the dynamic feels collaborative, helpful, and results-oriented. Office visits aren’t rushed.”
— Dave O.
“The doctors and staff have always been extremely kind and empathetic and I always get the feeling like they truly care and want to help.”
— Dana P.
Most Major Insurance Plans Accepted
At Optimus Medical Group Inc., here are the following insurance plans we accept: USA Managed Care, Anthem Blue Cross, Health Net, Aetna, Sutter Select, Cigna, America’s Choice Provider Network, Fortified Provider Network, Humana, MultiPlan, PNoA, TRPN, and United Healthcare.
Our Services
Our Mission
Our mission is to heal and empower people through the combination of medical knowledge and expertise, love and compassion, and a support and nourishment of the spirit.