Pacific Neuropsychiatric Specialists

Alejandro Alva, M.D.

Medical Director & Psychiatrist

Bio Photo

Population Focus

Dr. Alva received his education at the California State University of Fullerton and the Autonomous University of Guadalajara Medical School. After he completed his education and training in Guadalajara, Mexico, he returned to California to finish his residency at the University of California Irvine.

Prior to Dr. Alva's formation of PNS, he was involved in multiple endeavors including inpatient and outpatient work as well as clinical research in both Los Angeles and Orange counties. Dr Alva's focus is on the latest treatments available for psychiatric disorders, chemical/alcohol dependence as well as aspects of ethnicity and their correlation within pathological states. Dr. Alva has many years of experience in serving the medical community in various capacities; as a patient advocate, clinician, researcher and medical director. Dr. Alva's expertise in adolescent, adult and geriatric psychiatry as well as chemical/alcohol dependence and his treatments in psychiatric disorders make him one of the nation's most prominent psychiatrists.

Dr. Alva is a member of multiple professional organizations, including the American Medical Association, the Orange County Medical Association, the American Psychiatric Association, the California Psychiatric Association, the American Board of Forensic Medicine, the American College of Forensic Examiners, the American Board of Psychopharmacology, the California Hispanic American Medical Association, the New York Academy of Science, the American Association for the Advancement of Science and the American association of Hispanic professionals.

Lastly, Dr. Alva understands the critical need for more bicultural/bilingual mental health care professionals. PNS has a mandate to reach out not only to the general community, but also to the Latino community by having bilingual and bicultural staff in clinical, administrative and medical positions. Dr. Alva and associates understand the attitudes and barriers facing the different ethnic populations in need of mental health services and have a mandate to implement educational awareness and programs to address the identified barriers. PNS physicians are bilingual and bicultural, which are critical attributes in ensuring access to and providing quality mental health services to all of our community.

Please Visit for more information

Sheena Patel, PA-C

Physician Assistant

Bio Photo

Population Focus

Sheena Patel, PA-C completed her undergraduate studies at University of California Irvine, earning a Bachelor's Degree in Biological Sciences. She concurrently performed 4 years of academic research at a UCI laboratory related to Addiction, Drug Abuse, and Associated Effects on the Brain. Sheena Patel subsequently attained a Master's degree in Biological Sciences from New York University. She then completed her Physician Assistant training at Long Island University Brooklyn Campus. She has been a nationally board certified PA-C since 2010.

Her clinical experience is vast and includes work in Internal Medicine, Subspecialty Surgery (Urology, Vascular, ENT, and Plastic Surgery), Pain Management, and Psychiatry. She has particular interest in Psychosocial Medicine and Addiction Disorders.

She is knowledgeable, thorough, compassionate and cares deeply about the well-being of her patients.

Sheena Patel PA-C is a National Certified Speaker for pharmaceutical medications.

Please Visit for more information

Got Questions?
Send Us a Message!