(707) 462-1932

Narcan Distribution

Community Support Services

Medication Assisted Treatment

Hepatitis C & HIV Testing

Hepatitis Treatment

Narcan Distribution

Community Support Services

Medication Assisted Treatment

Hepatitis C & HIV Testing

Hepatitis Treatment

Narcan Distribution

Community Support Services

Medication Assisted Treatment

Hepatitis C & HIV Testing

Hepatitis Treatment


MCAVHN


Board & Staff


MCAVHN


Board & Staff

Board of Directors/Administration

Board of Directors
& Administration

MCAVHN Board and Staff
Dr. Ace Barash

Board President

Director: MAT Clinic
Dr. Ace Barash, has been practicing in the Mendocino County Community for 40 years. Having grown up in Pittsburgh, Pennsylvania, he studied as an undergraduate at Harvard University, attended medical school at the University of Kansas, and residency at San Joaquin General Hospital in Stockton, California. His practice centered on emergency medicine during most of his early years in the community, though he spent six years running his own internal medicine office, and 15 years as a hospitalist at Howard Memorial. In 2011 he became fascinated by the work of Dr. Jeff Brenner, who demonstrated the extent to which a large portion of illness can be averted by persistent emotional support. Currently he represents Adventist Health in providing community outreach, treating hepatitis, drug addiction, and disenfranchised community members, or what became known in Appalachia as “diseases of despair.” The majority of his practice time is spent at MCAVHN (Mendocino County AIDS and Viral Hepatitis Network). He considers his yearly Sierra trip with his wife, Satoko, as his most personally important activity. He has a 24-year-old daughter, of whom he is very proud, a recent graduate at Brandeis University studying and now practicing neuroscience research.
MCAVHN Board and Staff
Joanna Olson

Executive Director

(she/her)

Joanna is a life resident of Mendocino County and has served in leadership roles for grassroots community-based organizations for over thirty years. In 2021 she retired from the Mendocino County Youth Project, having served as the Executive Director. Within months she joined the MCAVHN team.

“The MCAVHN agency history, the ethos of Harm Reduction, the passion, motivation and commitment of staff, the actively engaged board members, volunteers and the people we serve have collectively embraced my advocate soul. I am truly grateful for the opportunity to serve.”

Joanna completed her BA in Social Work and Corrections at CSUC. She continues to volunteer and currently serves on the boards of Court Appointed Special Advocates (CASA), and the Alex Rorabaugh Recreation Center (ARRC).

mcavhn Cara Eberhardt
Cara Eberhardt

Board Vice President

Cara completed her MD at UCSF School of Medicine and is trained in Family Medicine and Addiction Medicine. She has been passionate about helping people who use drugs for over a decade. She enjoys using her medical knowledge to reduce stigma and decrease harms associated with substance use. She truly believes harm reduction saves lives and is grateful to have served on the MCAVHN Board since 2020.
mcavhn Judy Popowski
Judy Popowski

Treasurer/Secretary

I spent a career in IT, developing systems and websites and managing databases. I have an MBA in finance from Cal State Eastbay and began to handle finance as a volunteer for MCAVHN in 2012 when the organization had to reduce payroll.

Although at that time the primary focus of MCAVHN was helping persons with HIV/AIDS, it was always clear that MCAVHN is caring and accepting no matter who you are or where you have been. The clientele now is people who want to be cured of Hepatitis C and use of opioids, to avoid unsafe needle sharing, and in many cases, work to change their lives. Working here is a perfect opportunity for someone as fortunate as I’ve been in life to give back.

mcavhn don
Don Popowski

Facility Manager

I was born in Chicago right after the start of WW2. Shortly after, my parents moved to a small 40 acre dairy farm in northern Wisconsin. I learned reading, writing, and arithmetic, grades 1-8 in a one room country schoolhouse. Graduated from high school as one of fifty. Joined the National Guard during my senior year, did six months training, came home, and went to college focusing on math and physics.Had to leave college, my National Guard Unit was activated because of Russia messing around with Berlin, Germany. Spent 10 months tramping through the terrain of Fort Lewis Washington and surrounding territory playing war games and how to survive in constant rain. Berlin crisis ended, returned home and went back to college.

In my senior year, I took a course in computer programing which set my carrier agenda for the next 36 years. Spent the rest of my working carrier programing, doing system analysis, designing systems and managing software development. During this time I met and married my wife Judy. Things came and went, eventually we moved to Ukiah, California. Judy became involved with MCAVHN. Soon I was asked to be a board member, and did so.

Life has been very good to me, leaving me with a sense that I should give back something in return. Being retired, I have time and some treasure. I could sit around and watch TV or mow the grass (we don’t have any) or do something that has more significance for my fellow beings. At MCAHVN I managed the facilities of a homeless shelter for two years. I have problem solving and IT skills that can be used in fund procurement and in planning fund raising events. If because of some of my efforts we help someone feel better, possibly save a life, change their lives for the better, then, it is part of my saying thanks for what life has given me.

mcavhn Carol Flake Roseborough
Carol "Flake" Roseborough

Board Member

My name is Carol Roseborough, aka Flake Brady. I am a Board member at MCAVHN.

I was born and raised in San Diego, CA. during the 60’s and 70’s. I was introduced to the drug scene as a teenager. Being a border town, there were a lot of drugs readily available.

I moved to Redwood Valley in 1978, trying to get away from the toxic environment I found myself in. I found myself much more acclimated to the slower pace of small town life. I worked at the Redwood Valley and Ukiah Post Offices for 32 years as a Rural Letter Carrier. I was able to buy a house in Redwood Valley and raise my daughter and son. I also sat on the Board of The Waldorf School of Mendocino Co.

Upon retiring, I found myself with more spare time and decided to get involved with something to give back to the community. I had become very much aware of the explosion of fentynal overdoses and deaths in the county. I had several friends who had lost their children to this; some of which might have been avoided had their friends not left them to die. I felt this was definitely due to a lack of education in the schools about drugs.

So I joined the board at MCAVHN with the hope of promoting this avenue in the schools and to try and open this conversation with local tribes.

I must say my eyes have been made wide open to the many ways our employees try to meet the needs of the less fortunate, and to do it in a respectful humanizing way. For a small non-profit their work is making an impact one person at a time.

MCAVHN Board Member Philip DeJong
Philip DeJong

Board Member

I retired in 2019 after having practiced law in Ukiah for over 40 years. My wife, Jeanne, and I have 5 children between us. They are all wonderful people. Ace Barash introduced me to MCAVHN after I retired. The notion of simply reducing harm in people’s lives instantly caught my imagination. Simply being there to help without a sense of superiority is what practical spirituality is all about.

MCAVHN Board Member Leah Hannon
Leah Hannon

Board Member

Leah is a bay area native with a lifelong ambition of working in addiction recovery. She completed medical school in Las Vegas at UNLV and currently works as a Resident Physician through the Adventist Health Family Medicine Residency. Under the tutelage of Dr. Barash and with the warm embrace of the MCAVHN community, Leah hopes to continue expanding services through MCAVHN including street medicine and primary care for the unhoused; addiction recovery and harm reduction; as well as hepatitis and HIV screening and treatment.

MCAVHN Board Member Michael Seals
Michael Seals

Board Member

No bio available

MCAVHN Board and Staff
Dr. Ace Barash

Board President

Director: MAT Clinic
Dr. Ace Barash, has been practicing in the Mendocino County Community for 40 years. Having grown up in Pittsburgh, Pennsylvania, he studied as an undergraduate at Harvard University, attended medical school at the University of Kansas, and residency at San Joaquin General Hospital in Stockton, California. His practice centered on emergency medicine during most of his early years in the community, though he spent six years running his own internal medicine office, and 15 years as a hospitalist at Howard Memorial. In 2011 he became fascinated by the work of Dr. Jeff Brenner, who demonstrated the extent to which a large portion of illness can be averted by persistent emotional support. Currently he represents Adventist Health in providing community outreach, treating hepatitis, drug addiction, and disenfranchised community members, or what became known in Appalachia as “diseases of despair.” The majority of his practice time is spent at MCAVHN (Mendocino County AIDS and Viral Hepatitis Network). He considers his yearly Sierra trip with his wife, Satoko, as his most personally important activity. He has a 24-year-old daughter, of whom he is very proud, a recent graduate at Brandeis University studying and now practicing neuroscience research.
MCAVHN Board and Staff
Joanna Olson

Executive Director

(she/her)

Joanna is a life resident of Mendocino County and has served in leadership roles for grassroots community-based organizations for over thirty years. In 2021 she retired from the Mendocino County Youth Project, having served as the Executive Director. Within months she joined the MCAVHN team.

“The MCAVHN agency history, the ethos of Harm Reduction, the passion, motivation and commitment of staff, the actively engaged board members, volunteers and the people we serve have collectively embraced my advocate soul. I am truly grateful for the opportunity to serve.”

Joanna completed her BA in Social Work and Corrections at CSUC. She continues to volunteer and currently serves on the boards of Court Appointed Special Advocates (CASA), and the Alex Rorabaugh Recreation Center (ARRC).

mcavhn Cara Eberhardt
Cara Eberhardt

Board Vice President

Cara completed her MD at UCSF School of Medicine and is trained in Family Medicine and Addiction Medicine. She has been passionate about helping people who use drugs for over a decade. She enjoys using her medical knowledge to reduce stigma and decrease harms associated with substance use. She truly believes harm reduction saves lives and is grateful to have served on the MCAVHN Board since 2020.
mcavhn Judy Popowski
Judy Popowski

Treasurer/Secretary

I spent a career in IT, developing systems and websites and managing databases. I have an MBA in finance from Cal State Eastbay and began to handle finance as a volunteer for MCAVHN in 2012 when the organization had to reduce payroll.

Although at that time the primary focus of MCAVHN was helping persons with HIV/AIDS, it was always clear that MCAVHN is caring and accepting no matter who you are or where you have been. The clientele now is people who want to be cured of Hepatitis C and use of opioids, to avoid unsafe needle sharing, and in many cases, work to change their lives. Working here is a perfect opportunity for someone as fortunate as I’ve been in life to give back.

mcavhn don
Don Popowski

Facility Manager

I was born in Chicago right after the start of WW2. Shortly after, my parents moved to a small 40 acre dairy farm in northern Wisconsin. I learned reading, writing, and arithmetic, grades 1-8 in a one room country schoolhouse. Graduated from high school as one of fifty. Joined the National Guard during my senior year, did six months training, came home, and went to college focusing on math and physics.Had to leave college, my National Guard Unit was activated because of Russia messing around with Berlin, Germany. Spent 10 months tramping through the terrain of Fort Lewis Washington and surrounding territory playing war games and how to survive in constant rain. Berlin crisis ended, returned home and went back to college.

In my senior year, I took a course in computer programing which set my carrier agenda for the next 36 years. Spent the rest of my working carrier programing, doing system analysis, designing systems and managing software development. During this time I met and married my wife Judy. Things came and went, eventually we moved to Ukiah, California. Judy became involved with MCAVHN. Soon I was asked to be a board member, and did so.

Life has been very good to me, leaving me with a sense that I should give back something in return. Being retired, I have time and some treasure. I could sit around and watch TV or mow the grass (we don’t have any) or do something that has more significance for my fellow beings. At MCAHVN I managed the facilities of a homeless shelter for two years. I have problem solving and IT skills that can be used in fund procurement and in planning fund raising events. If because of some of my efforts we help someone feel better, possibly save a life, change their lives for the better, then, it is part of my saying thanks for what life has given me.

mcavhn Carol Flake Roseborough
Carol "Flake" Roseborough

Board Member

My name is Carol Roseborough, aka Flake Brady. I am a Board member at MCAVHN.

I was born and raised in San Diego, CA. during the 60’s and 70’s. I was introduced to the drug scene as a teenager. Being a border town, there were a lot of drugs readily available.

I moved to Redwood Valley in 1978, trying to get away from the toxic environment I found myself in. I found myself much more acclimated to the slower pace of small town life. I worked at the Redwood Valley and Ukiah Post Offices for 32 years as a Rural Letter Carrier. I was able to buy a house in Redwood Valley and raise my daughter and son. I also sat on the Board of The Waldorf School of Mendocino Co.

Upon retiring, I found myself with more spare time and decided to get involved with something to give back to the community. I had become very much aware of the explosion of fentynal overdoses and deaths in the county. I had several friends who had lost their children to this; some of which might have been avoided had their friends not left them to die. I felt this was definitely due to a lack of education in the schools about drugs.

So I joined the board at MCAVHN with the hope of promoting this avenue in the schools and to try and open this conversation with local tribes.

I must say my eyes have been made wide open to the many ways our employees try to meet the needs of the less fortunate, and to do it in a respectful humanizing way. For a small non-profit their work is making an impact one person at a time.

MCAVHN Board Member Philip DeJong
Philip DeJong

Board Member

I retired in 2019 after having practiced law in Ukiah for over 40 years. My wife, Jeanne, and I have 5 children between us. They are all wonderful people. Ace Barash introduced me to MCAVHN after I retired. The notion of simply reducing harm in people’s lives instantly caught my imagination. Simply being there to help without a sense of superiority is what practical spirituality is all about.

MCAVHN Board Member Leah Hannon
Leah Hannon

Board Member

Leah is a bay area native with a lifelong ambition of working in addiction recovery. She completed medical school in Las Vegas at UNLV and currently works as a Resident Physician through the Adventist Health Family Medicine Residency. Under the tutelage of Dr. Barash and with the warm embrace of the MCAVHN community, Leah hopes to continue expanding services through MCAVHN including street medicine and primary care for the unhoused; addiction recovery and harm reduction; as well as hepatitis and HIV screening and treatment.

Board Member Michael Seals
Michael Seals

Board Member

No bio available

MCAVHN is actively recruiting Board Members who wish to join our team in supporting Reducing Harm.
If you are interested in becoming a board volunteer please contact Joanna at joanna@mcavhncares.org

Our Staff

MCAVHN Board and Staff
Dr. Ace Barash

MAT Clinic Director

Dr. Ace Barash, has been practicing in the Mendocino County Community for 40 years. Having grown up in Pittsburgh, Pennsylvania, he studied as an undergraduate at Harvard University, attended medical school at the University of Kansas, and residency at San Joaquin General Hospital in Stockton, California. His practice centered on emergency medicine during most of his early years in the community, though he spent six years running his own internal medicine office, and 15 years as a hospitalist at Howard Memorial. In 2011 he became fascinated by the work of Dr. Jeff Brenner, who demonstrated the extent to which a large portion of illness can be averted by persistent emotional support. Currently he represents Adventist Health in providing community outreach, treating hepatitis, drug addiction, and disenfranchised community members, or what became known in Appalachia as “diseases of despair.” The majority of his practice time is spent at MCAVHN (Mendocino County AIDS and Viral Hepatitis Network). He considers his yearly Sierra trip with his wife, Satoko, as his most personally important activity. He has a 24-year-old daughter, of whom he is very proud, a recent graduate at Brandeis University studying and now practicing neuroscience research.
MCAVHN Board Member Leah Hannon
Dr. Leah Hannon

MAT Clinic

Leah is a bay area native with a lifelong ambition of working in addiction recovery. She completed medical school in Las Vegas at UNLV and currently works as a Resident Physician through the Adventist Health Family Medicine Residency. Under the tutelage of Dr. Barash and with the warm embrace of the MCAVHN community, Leah hopes to continue expanding services through MCAVHN including street medicine and primary care for the unhoused; addiction recovery and harm reduction; as well as hepatitis and HIV screening and treatment.

MCAVHN Board and Staff
Jessica R Walker (Jess)

Program Manager

MAT Clinic, SSP, Outreach and Community Education Services
I am Jessica Walker, the MAT/HCV Clinic Coordinator. While working at MCAVHN I have grown in so many ways. I can contribute that growth to not only the agency but the community we serve and each individual and the connection I’ve made with them. I have lived experience which helps me encourage and guide individuals without fear of judgement. I am passionate about the work I do, while still learning more everyday how to support our community and MCAVHN participants.
MCAVHN Board and Staff
Emily Serb

Community Health Navigator

Media Coordinator
Hi everyone, I’m Emily Serb! Before joining the team here at the clinic, I spent years doing outreach work with Food Not Bombs and Face to Face. Those experiences ignited a passion for supporting people in need, and I’m thrilled to be a part of this organization’s mission.

For the past year, I’ve volunteered my time at MCAVHN before taking on the role of Social Media Coordinator. I’m excited to use this platform to share important resources and information about harm reduction with our community. In my free time, I love baking, cooking, and subverting capitalist interests.

MCAVHN Staff Member James Lanik
James Lanik-Smith

Community Health Navigator

Hi there, my name is James Lanik. I have the privilege of providing program support in the MAT Clinic, direct services to participants in “the Exchange”, our Syringe Services Program, and conduct outreach services county-wide with our team. I have 4 years’ experience as a Registered Alcohol/Drug Technician. During that time, I held various positions, assisting individuals struggling with substance abuse in settings such as medical detox, and Residential treatment facilities.

Personally, I struggled with fentanyl dependence and homelessness for several years. I wouldn’t be writing this Bio if Harm reduction did not exist. I am a living testimony that Narcan saves lives. Understanding the loneliness, hardship, and stigma related I believe that I am uniquely qualified to help others struggling with challenges I’ve personally walked through. Reflecting on the past, the most purposeful and fulfilling years of my life have been spent working with others.

Matt ID
Matt Watson

Hello Everyone,
My name is Matt Watson. I work at MCAVHN Care and Prevention Network as a Harm Reduction Navigator. From my own personal experience I have encountered many of the same difficulties as the population that our team at MCAVHN serve, addiction, substance abuse, homelessness and incarceration. After many years of this experience with support from family, friends and community, I have been able to overcome these difficulties. That is why I do this work. I have a passion for lending a hand to people in need. We have a great team here at MCAVHN and look forward to supporting our community and meeting people where they are at.

Victor ID Pic 24
Victor

I serve as a Harm Reduction Navigator and Tribal Liaison for MCAVHN. As I was growing up, I always wanted to help people, but wasn’t quite sure how to. In 2023 I began my journey in social work by working with RCS. I was introduced to the concept of Harm Reduction and found my passion. I then became employed at MCAVHN, a Harm Reduction agency, and while here I have learned a lot about myself and others. I strive to help people who are struggling and feeling alone in this community. I hope to help the MCAVHN team achieve the mission of the agency. I am truly grateful to be here at MCAVHN Care and Prevention Network.

Contract Services

mcavhn Aurelie Clivaz update
Aurelie Clivaz

Contract Services

Aurelie has seventeen years experience in the prevention and early intervention education field. For seven years she coordinated and provided professional development trainings and continues to support networking among community partners around the county.

She graduated with her Masters in Social Work from Cal-Poly Humboldt State University in 2024. Aurelie is working on her hours to become a Licensed Clinical Social Work (LCSW). She is called to the work that MCAVHN provides due to her own lived experience and being of support to her mother who is severely mentally ill and has a problematic relationship to alcohol and other drugs.

Group Facilitators

no image available
James

Hear Us Group Facilitator

No bio available
no image available
Derrick

Hear Us Group Facilitator

No bio available