About Acacia Medical Mission


Acacia Medical Mission is a faith-based, 501(c)3 volunteer medical ministry serving the uninsured and underinsured of Comal County. AMM was established in 2006 as a non-profit organization to serve a vast number of residents who have no access to affordable healthcare. Our mission is to provide high quality, low-cost, primary medical care to the low income of Comal County. AMM partners and is supported by United Way of Comal County, local churches, individual residents, nurse practitioners, physicians, and other volunteers through their volunteer hours.

Our Staff and Volunteers

Chery Johnson

Acacia Medical Mission
Clinic Director

Chery moved to Texas in 1981 and worked for Spalten-Mueller, Inc. for 31 years until she “retired”in 2012.  She started volunteering with Acacia Medical Mission in 2011 when the doors opened, then became a paid employee in 2012. She is an EMT-B, and feels privileged to work at Acacia Medical Mission and get to help and love on people who have no insurance and are so grateful for our clinic.

Susie Buford

Earned her degree from Lamar University – Beaumont and moved to Canyon Lake 2 ½ years ago.  She taught school, mostly junior high, in Nederland, Alvin and Pleasanton, Texas.  She also worked at a physical fitness gym, trailer park and coached a swim team.  Retired, with way too much time on my hands, she wanted to help in her new community.  When when moved to San Antonio, she adopted the fire department near my house.  Then when she moved to Canyon Lake, the EMS and Acacia Medical Mission seemed to fit.  Such great people to work with.

Gina Campbell NP

Gina Campbell is an Adult Nurse Practitioner with a focus in Women’s Health. She obtained her Bachelors of Science in Nursing degree from Texas Women’s University Houston in 1996, and completed the Nurse Practitioner Program with a Master’s of Science degree from Texas Women’s University in 2010. She has worked as a volunteer provider at Acacia Medical Mission, providing women’s health services, since 2013. She also provides services to young women at a teen clinic in Pleasanton. Gina is a member of the American Academy of Nurse Practitioners, Texas Nurse Practitioners Association, and the National Association of Nurse Practitioners in Women’s Health. She resides in Blanco with her husband Mark. She has three grown children and one sweet grandchild.

Bernadette Kopanski

Throughout her children’s’ active lives, she has always volunteered as a way of keeping in touch with whatever activities/programs they were involved with. She also volunteered in order to support & help make these activities/programs successful. After raising two beautiful & very smart young ladies, she found that she had some free time on her hands. Since she has always wanted to give back to my local community & with some luck from her eldest daughter who obtained her EMT certification from Bulverde Spring Branch Fire / EMS station, she was put in touch with an amazing opportunity to volunteer at Acacia Medical Mission. She is so thankful to be volunteering there every Wednesday afternoon and loving the fact that she is able to help make a difference in someone else’s life.

Larry J. Miller MD

Dr. Larry J. Miller is uniquely qualified as a board-certified emergency medicine physician, industry leader, researcher, instructor, and a successful business man. Dr. Miller practiced Emergency Medicine at the Baptist Health System Hospitals in San Antonio for 31 years, where he treated more than 120,000 emergency patients.  He was chairman of the Emergency Departments of the 5 Baptist hospitals for more than 15 years and Medical Director for 10 EMS agencies in South Texas for more than 30 years.  During his tenure as an emergency physician, Doctor Miller was never involved in a malpractice action.  Dr. Miller received the Humanitarian of the Year Award from the University of Michigan in 2017. He also received the innovation of the year award from the Wall Street Journal in 2008 for his development and commercialization of the EZ-IO. Since selling his company to Teleflex in 2013, he has been practicing volunteer medicine in South Texas and El Salvador. He is currently a staff physician for Texas MedClinic, 19 urgent care facilities, headquartered in San Antonio, TX.  

Marilyn Pozero FNP

Marilyn Pozero has been working as a Family Nurse Practitioner since 1997. She worked mainly at the Veterans Administration Hospital in San Antonio until she retired in 2012.  She also served in the United States Air Force Reserves as a Flight Nurse for 16 years. She was honorably discharged with the rank of Major. Since her retirement she has worked part time in the community giving physicals. She also worked in New Braunfels for a local provider. She currently works as a provider through an agency in a large corporate clinic in San Antonio. Her main love is helping her community at the Acacia Medical Mission where she has worked since 2012. 

Our Board
Richard Britz

Mike Johnson

Mike Johnson is a retired USAF Senior Master Sergeant (E-8) Intelligence analyst with 22 years of service.  After his military career, Mike has established himself as a true entrepreneur which includes several business ventures.  His primary venture since 1998 has been SA Print Supplies.

Mike has been a member of the Bulverde/Spring Branch Area Chamber of Commerce since 2011 and currently serves on the Board of Directors, as well as an Ambassador for special events.  He is currently Chairman of the Board for 2017.  Additionally, he serves as Co-Chair of the Leadership Committee and is on the Awards Banquet Planning Committee for the Chamber.

Mike is on the Board of Directors for Freedom Youth Project Foundation, a non-profit organization that provides awareness to domestic minor sex trafficking.  He is also on the BSB Emergency Medical Services Denim and Diamonds Fundraiser Committee.  And he leads the greeter team at Riverside Community Church in Bulverde, where he is also a member of the Men's Group Leadership Team.

Mike is married to Chery Johnson, who serves as Clinic Coordinator for Acacia Medical Mission.  Their blended family includes 3 daughters (one married), 2 sons (one married), and 4 grandchildren.

Mechelle Salmon

Mechelle has resided in the Bulverde / Spring Branch area for over 20 years.   She knew immediately that this was going to be the place where she and her husband would raise their 5 children and call home. She cherishes the sense of community, the history, wonderful people, beauty, and rural hill country charm.


She has dedicated her life to improving the safety and quality of life of our community through 20 years of public service with the last ten serving as the Chief Executive of EMS.  She also volunteers her skills of a strategic planning and community organization to develop and empower several local non-profit organizations like; Acacia medical mission (10 years), Wellness on Wheels (WOW), the Bulverde/Spring Branch Economic Foundation, the Chamber of Commerce, Riverside Community Church and as councilwoman for the City of Bulverde.

Sam Shelton
Sam Shelton retired from the Army JAG Corp in 1991, worked briefly in private practice, then as a civilian Attorney for Department of the Army until retiring as a GS 15 in 2007. He moved to Spring Branch to be near (but not too near) his daughter and her family in San Antonio.  He is currently active in Community Theater, Riverside Community Church, and is on the Board of the Rivermont Homeowners Association in addition to his position with Acacia Medical Mission.   

Todd Slater

Todd is an independent contractor who serves the community with his skills as a master carpenter. For over three decades, Todd has worked in nearly every field of construction. He has found that his detail-oriented personality shines best when his designs a beautiful kitchen or creates custom woodcrafts.


Todd has served on the Board of Directors since 2017 as the fundraising chair. His experience in fundraising has been gathered from many years of service with a national youth hunting and fishing ministry.


Todd met his wife, Denice, 35 years ago, and they have two red-headed children—a married daughter, and a son who is a high-school senior. They have been members of Riverside Community Church since 2010, and they have been actively involved in assisting with the church’s youth program.

Acacia Medical Mission

353 Rodeo Dr

Spring Branch, TX 78070

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