Our Mission
It is the mission of Pacific Psychiatry, Inc. (PAC), to provide the absolute highest level of care to patients in a warm, friendly and supportive environment. We are committed to the prevention as well as treatment of psychiatric illness, always seeking to incorporate healthy lifestyle changes in support of the optimal outcome for patients.
Contact us for information regarding future or current speaking engagements, or if you have other questions.
Our Team
Richard Altesman
M.D.
Richard Altesman, M.D. is a nationally renowned Biological Psychiatrist, specializing in clinical psychopharmacology and neuropsychiatry, affective and mood disorders, anxiety, dual diagnosis and substance use disorders. Dr. Altesman completed medical school at the State University of New York and went...
Katie Bailey
P.M.H.N.P.
Katie Bailey has over 9 years of experience in the mental health field. She obtained her Master of Science in Nursing from the University of South Alabama in 2019, and is board-certified as a Psychiatric Mental Health Nurse Practitioner. She...
Julia Davison
P.A.-C.
Julia Davison is a board certified Physician Assistant who joined Pacific Psychiatry in 2019, after moving to the Central Coast from Maine, where she had practiced medicine as a PA for 35 years. Ms. Davison performs comprehensive diagnostic evaluations, establishes...
Mary Garrett
P.M.H.N.P.
Mary Garrett is a Psychiatric Mental Health Nurse Practitioner who is qualified to diagnose, treat, and prescribe medications for children, adolescents, and adults. Mary specializes in the treatment of ADHD, Depression, Anxiety, Bipolar, Schizophrenia, Substance Abuse, and Trauma. As one...
Madhu Jagadish
P.A.-C.
Madhu Jagadish is a skilled and dedicated physician assistant with over two decades of experience in psychiatry. She earned her Master of Science in Physician Assistant Studies from the University of Detroit Mercy in 1998. Madhu is fluent in English,...
Susan Lozier
P.A.
Susan Lozier is a Mental Health Physician Assistant with Pacific Psychiatry. She received her Physician Associate and Master of Medical Science degrees from Yale University School of Medicine and her Bachelor of Arts degree from Brown University. She began her...
Kira Mesman-Hallman
P.A.-C.
Kira is a board certified psychiatric Physician Assistant with Pacific Psychiatry. Kira earned her Bachelor of Arts in Literature and Psychology at Claremont McKenna College, and her Master of Medical Science in Physician Assistant Studies at Midwestern University. After completing...
Douglas P. Murphy
M.D.
Dr. Douglas P. Murphy M.D. is a highly respected Clinical Psychiatrist in San Luis Obispo who approaches the care of his patients with a combination of expert training and varied life experiences. Dr. Murphy is a diplomate of the American...
Mia Pasini
P.M.H.N.P.
Mia Pasini is a board certified Psychiatric Mental Health Nurse Practitioner with a distinguished background in both clinical practice and research. She earned her Bachelor of Arts in Psychology from the University of California, Santa Barbara, her Master of Science...
Denis Tamas
P.M.H.N.P., D.N.P.
Denis G. Tamas, Doctorate of Nurse Practice and Psychiatric Mental Health Nurse Practitioner, is a board-certified clinician specializing in psychiatry and mental health treatment. With extensive experience in both inpatient and outpatient settings, he provides comprehensive care for individuals struggling...
Edward Valkov
M.D.
Dr. Edward Valkov has more than forty years of research, teaching, and clinical experience. He is certified in Cognitive Behavioral Therapy, embraces pharmacology and psychotherapy treatment modalities, and specializes in the assessment and care of mood disorders, including anxiety, depression,...
Douglas Williamson
P.M.H.N.P., D.N.P.
Douglas Williamson is a board certified Psychiatric Mental Health Nurse Practitioner and has his Doctorate of Nursing Practice. Douglas Williamson is qualified to diagnose psychiatric mental health disorders and implement evidence-based treatment modalities that are client-centered, recovery-orientated, and provided in...