Prosilio Care Center: Now Open in Pasadena, CA

A New Comprehensive Gender-Affirming Care Center in Southern California

The Gender Confirmation Center (GCC) network has just expanded to Pasadena, California with the opening of the Prosilio Care Center. Prosilio Care is our landmark Southern California gender-affirming care center that is fully operational as of September 2025.

Prosilio’s offers patients a more comprehensive approach to gender care than most private clinics: mental health care, hormonal therapy and surgical care all under one roof. Founded by Dr. Scott Mosser (he/him) and directed by Dr. Joe Olson-Kennedy (she/her), the Prosilio Care Center is staffed and led by experts in the field that have dedicated their careers to providing the highest-quality care to all members of the trans, non-binary and gender-expansive community.

You can book an appointment today with a hormone therapy, mental health or surgical care provider by calling our office line: 866-846-5062.

Services

At the Prosilo Care Center, we understand that informed consent is an ongoing process. At every step of a patient’s journey, our providers will be holding your hand, providing ongoing evaluations and education to keep our patients in the driver’s seat of their unique care plan.

Mental Health

Undergoing medical gender-affirmation represents a tremendous life change for many of the patients we serve. For qualified patients, gender-affirming care has overwhelming satisfaction rates. Having a strong support network––including culturally competent, gender specialized psychological care––is necessary for many patients as they transition.

Our vetted mental health providers help support individuals figure out which, if any, medical transition steps are necessary to relieve their dysphoria, adjust through the changes of medical transition, and navigate the other challenges life may bring.

Endocrinology

Gender-affirming hormone therapy (GAHT), sometimes called hormone replacement therapy (HRT) is an essential part of transition for many trans, non-binary and gender non-conforming individuals. Not every gender-expansive individual needs hormonal therapy to relieve gender dysphoria or feel affirmed in their gender identity.

Our providers use an evidence-based approach to develop and deliver individualized care plans that meet each patient’s unique goals and needs.

Surgery

Regardless of your decision or ability to take hormones, gender-affirming surgery is a necessary step for many non-binary, trans and gender expansive folks we serve. Our board-certified surgeons have decades of experience in the Operating Room and share a commitment to providing patient-centered care. In other words, our surgeons understand that patients deserve providers that will get to know their unique gender embodiment goals.

Our surgical team was specially selected to include providers with decades of experience that are committed to taking their time to understand a patient’s medical history and expectations for surgery. Currently, our surgical team offers the following gender-affirming procedures:

Call to Book an Appointment in our Pasadena Office

You call our front desk to schedule an appointment with Prosilio Care today: 866-846-5062.