Health Care for the Homeless Staff

Ralph Barbosa

Ralph Barbosa -
Program Coordinator

Ralph Barbosa has worked for the Public Health Department since 2005. Ralph began as a Departmental Assistant assigned as Contract Administrator for Probation Medical Services. In 2007, Ralph became the Public Health Programs Coordinator for Health Care for the Homeless.

Ralph was born and raised in Santa Barbara. From 1995 to 2005 he traveled the world while working for United Airlines. During that time, Ralph was elected as President of the Association of Flight Attendants and specialized in Workers' Compensation programs and contract negotiations

Ralph graduated from Santa Barbara City College in 2017 with the degree of Associate in Liberal Arts and Sciences with Emphasis in Arts and Humanities.   Ralph plans to further his education in Business Management.

In his free time Ralph enjoys spending time with family and friends, and volunteers in the Community. Ralph is the Vice-Chair of the Board for Pacific Pride Foundation.

Duane Deamicis

Duane DeAmicis, FNP -
Family Nurse Practicioner

Duane DeAmicis began his career as a Nurse Practitioner in 1986. After completing a BS degree in psychology at UC Davis, he worked for Solano County Mental Health. He received both his Bachelors and Masters in Nursing from UC San Francisco, and worked for ten years at San Francisco General Hospital providing health care to underserved populations.

Duane then relocated to Sacramento and joined the UC Davis FNP/PA Program as a faculty member. The mission of this program is to prepare clinicians for practice with underserved populations. While teaching in the School of Medicine, he provided health care to urban underserved patients at the UC Davis Family Practice Clinic.

He joined the Public Health Department in 2010 and appreciates the opportunity to provide health care services to the homeless and other underserved populations of Santa Barbara County.

Robert Martin

Robert Martin, PA-C -
Physician Assistant - Certified

Robert graduated from Charles Drew University/Martin Luther King Hospital Physician Assistant Program in South Central, Los Angeles with honors in 1996. He started with the Santa Barbara County Public Health Dept in December of that year and been there ever since. Robert took a vow at Charles Drew to always serve those who are less fortunate economically. He has taken that vow very seriously and considers himself a dedicated servant and honored to care for the homeless and underserved. Speaking Spanish is another comfort Robert offers to all the Hispanic clients who don't speak English/

Robert has been married since '94, loves to coach his son's baseball team and is a passionate cyclist. "I am so blessed to be able to be to work with such great people, who work so hard just to make ends meet, and all here on the beautiful Central Coast!"

Carol Petrini

Carol Petrini, R.N., PHN -
Public Health Nurse

(Lompoc)

Carol Petrini returned to the Health Care for the Homeless Program in March 2015.

Carol began her nursing career in 1986.  She received her Bachelor of Science degree in nursing from San Jose State University and worked as a neonatal intensive care nurse prior to joining the Santa Barbara Public Health Department in 2003.  As a Public Health Nurse she has worked in the Maternal Child Adolescent Health Program, California Children's Services and Health Care for the Homeless Program.  She currently works in Lompoc as the Public Health Nurse in the Health Care for the Homeless Program.        



(Santa Barbara, Carpinteria, Goleta)

Carol Petrini & Colleen Jensen will have a limited back-fill in this region while this position is being recruited. If you are a Public Health Nurse and are interested, please see the County of Santa Barbara Human Resources page for job posting and application.

Colleen Jensen

Colleen Jensen, R.N., PHN –
Public Health Nurse

(Santa Maria)

Colleen graduated from San Francisco State University in 1999 with a BSN. She began her career in Labor and Delivery and NICU in San Francisco and Napa, until she joined SB County Public Health in 2002. Colleen worked for MCAH until 2007, when she transferred to the HealthCare for the Homeless Program in Lompoc. After experiencing the hospice journey of a homeless client, Colleen moved into hospice nursing, where she grew as a nurse and as a person. In December of 2016, she joined Visiting Nurse and Hospice Care to start up the Senior Wellness Program. Since 2018, Colleen has served with the Public Health MCAH team in Lompoc.

Colleen returned to HealthCare for the Homeless Program in Santa Maria in May 2019.

Medical Assistants (MA)
Rosa Medina-Tell
Amalia Flores

Health Service Aides (HSA)    
Jose Ruiz
Diana Vares-Lum 

Administrative Office Professional
Elvira Briones-Arellano