Our Staff

Provider Information

Dr. Anish Shah

Dr. Shah founded Siyan Clinical Corporation in 2012 in Santa Rosa with an extensive background in Psychiatry. He is a graduate of the University of Il [...]

Our Providers

Aubree Vance Tovrea, LCSW

Aubree Vance Tovrea is a Psychotherapist with over 10 years of experience working with adults struggling with mental health and substance use disorder [...]

Barbara Ferrell, MSN, NP-c, FNP, PNHNP, PHN, RN

Barbara graduated from Samuel Merritt University and has over 25 years of experience in the health care industry. She offers strength-based therapeuti [...]

Dr. Bryan Gaddy (Inpatient)

Dr. Bryan Gaddy recently finished his medical training in New York City and is working as a Psychiatrist in Sonoma County. Bryan received multiple awa [...]

Dr. Michelle Knosp (Inpatient)

Greetings! My name is Dr. Michelle Knosp. Born and raised in Southern California, I have returned to Northern California after completing my residency [...]

Dr. Naga Kothapalli

Dr. Kothapalli completed medical school in India where he worked in primary care and emergency medicine prior to moving to the U.S. in 2010. He has br [...]

Dr. Prital Desai MD,MPH

Dr. Prital Desai specializes in Child and Adolescent Psychiatry as well as General Psychiatry. She is board certified in general psychiatry with the A [...]


Dr. Jeannie is a Clinical Psychologist and Life Coach who offers both, psychotherapy and coaching. She inspires individuals towards more satisfaction, [...]

Juliana Matteucci, CCMA

Juliana, a member of the Clinical TMS Society, has been with Siyan since 2014 and with her strong medical background, she helped launch the TMS progra [...]

Katrina Albrecht, CCMA

Katrina became a TMS technician soon after being hired in 2016. Her medical background aids in providing excellent patient care. [...]

Laura Padilla

Laura has extensive experience in managing medico-legal and workers compensation evaluations and leads the QME (Qualified Medical Evaluation) departme [...]

Marina Atilano, PA-C, MSPAS, MPH

Marina is a Physician Assistant (PA) specializing in Psychiatry. Her practice is rooted in meeting her clients “where they are”, working cohesivel [...]

Tiffany Figuero, FNP

Tiffany Figuero, FNP has worked in the medical profession - starting off in emergency medicine for about 9 years. What brought Tiffany into the world [...]

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