Our Doctors

Robert Rowley, MD
Family Practice
Robert Rowley is a practicing family physician and healthcare information technology consultant. Dr. Rowley has been in clinical practice for over 30 years, including experience as a Medical Director with Hill Physicians Medical Group and as a developer of the early EMR system Medical ChartWizard. His family practice in Hayward, CA has functioned without paper charts since 2002. Dr. Rowley obtained his bachelor’s degree at the University of California, San Diego, and his doctoral degree at the University of California, San Francisco, School of Medicine. He completed his post-graduate training at Highland Hospital in Oakland. Dr. Rowley is fluent in Spanish.
Raul Gentini, MD
Family Practice
Raul Gentini is a board-certified family physician. He grew up in Argentina, and received his doctoral degree from the Universidad Nacional de Cordoba, in Argentina. He completed his Family Practice residency at the Universidad de Puerto Rico Family Practice Residency Program. He is licensed in California, and is board certified in family medicine. Dr. Gentini is fluent in Spanish.
Victoria Rivera, PA-C
Family Practice

Victoria Rivera received her Bachelor of Science from San Francisco State University and earned her Physician Assistant degree from Western University of Health Sciences in Pomona, California in 1999. She is certified through the National Commission on Certification of Physician Assistants.

Her professional background includes family practice, women’s health and functional medicine. She has additional training in holistic nutrition that focuses on diet, vitamins and supplements to treat and prevent disease, as well as to maximize health.

Her practice style focuses on understanding the cause of disease, whether it is physical, psychological or spiritual and treating it appropriately. Her interests are in women’s health, digestive disorders, hormone replacement, and autoimmune disorders. She incorporates bio-identical hormone replacement for women who prefer this.

Outside of work, she enjoys spending time with family, hiking, paddle boarding, singing, dancing and traveling.

She is fluent in Spanish.

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Theresa Tsingis, PA-C
Family Practice

Dr. Theresa Tsingis has more than 25 years of experience dedicated to a whole systems approach to health, with more than 10 years of postgraduate degrees, including allopathic and chiropractic medicine, clinical nutrition, public health, and functional medicine. She is a Certified Functional Medicine Practitioner with the Institute of Functional Medicine.

Theresa graduated with honors from the NYC University system and worked as a naturalist with the National Park Service. She later received a Doctor of Chiropractic degree from New York Chiropractic College, then went on to attain master’s degrees in clinical nutrition, public health and medicine.

Theresa’s personal experiences have taught her that an integrative approach to life experiences, including physical, emotional, cognitive, and spiritual wellbeing, is vital to attaining health, balance and serenity.

She enjoys spending time with her family, hiking, working out, gardening, dancing, and comedy.