Contact Information

Physician Assistant Degree Programs

Mailing Address

Samuel Merritt University
Physician Assistant Department
450 30th Street
Oakland, CA 94609

Core Faculty

Michael DeRosa
Associate Professor/Department Chair

Born and raised in southern California, Dr. De Rosa attended Occidental College and UCLA, earning an undergraduate degree in Psychobiology and his doctorate in Neuroscience studying specimens from the Pediatric Epilepsy Surgery Program.

Tomás A. Magaña
Assistant Professor/Medical Director

Tomás A. Magaña, MD, MA, FAAP is Assistant Professor/Medical Director in the Masters Physician Assistant Department at Samuel Merritt University.  Dr. Magaña is a board-certified pediatrician with expertise in the care of at-risk children and adolescents.

Lorraine Petti
Associate Professor

Lorraine Petti, Assistant Professor ,  SMU Department of Physician Assistant, is a graduate of Cornell University (1980),  Albany Medical College Physician Assistant Program (1988), and received her  Masters  degree in Physician Assistant Studies from University of Nebraska in 1999.  She joined the SMU PA Program in 1999 as Clinical Coordinator and since that time has served in every position i

Julia Stevens
Assistant Professor/Academic Coordinator

Julia is originally a Bay Area native, growing up in nearby Alameda. She completed her undergraduate degree in biology at the University of San Francisco. After completing this she had the travel bug, so she moved to England where she lived for the next four years and she did a variety of jobs and a good deal of world wide travel.

Tana Summers
Assistant Professor/Assistant Program Director

Tana is originally from Portland, Oregon. She earned a BS from Santa Clara University and a MS from Baylor College of Medicine, where she completed her Physician Assistant training in 2001. She completed a medical Spanish immersion program on the border of Mexico working with underserved patients, and spent the first 6 years of her career working among underserved Latino communities.

Vicki Trevino
Assistant Professor

Vicki graduated from Samuel Merritt University's MPA program in 2004.  In 2007 she returned to SMU as an adjunct instructor and shortly thereafter became an Assistant Clinical Coordinator.  Most recently she has become SMU's Clincal Coordinator.  She has spent the past 25+ years here in the Bay Area after she was stationed at Moffett Field while in the Navy as an Air Traffic Controller.  After

Sam Wijesinghe
Assistant Professor

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