Leadership Team

David Longridge

President / Founder

Dave Longridge is the President & CEO of Balboa Horizons Recovery Services, which he founded 14 years ago. With fully-licensed inpatient facilities and outpatient programs in Newport Beach and Costa Mesa, Balboa is Joint Commission accredited to provide treatment programs to those suffering from alcohol and drug addiction, as well as those who have co-occurring mental health conditions.

Located in coastal Orange County, Balboa Horizons offers the full continuum of addiction recovery programs for men and women. Its specialized, comprehensive recovery programs provides a valuable continuity of care for clients, their families, referring professionals and hospitals. Balboa Horizons’ programs are designed with the end goal in mind – providing a customized treatment process that fosters maximum progress and growth. The organization has a sterling reputation in the treatment industry for excellence, standard of care, and positive recovery outcomes. In addition to serving young adults and being a top choice with primary treatment centers, interventionists, therapists, and other professionals, Balboa Horizons is also aligned with the Employee Assistance Programs of some of the largest unions in the country, particularly those serving the transportation industry – on land or air. Balboa Horizons has also received The Joint Commission’s Gold Seal of Approval for Behavioral Health Care Accreditation, the highest ranking for standard of care any addiction treatment organization can achieve.

Dave honed his executive management skills in the auto industry, and – grateful for his own recovery from alcohol addiction 21 years ago, began “giving back” by originally helping those struggling with addiction, later financing an addiction treatment center, then applying his management talents to running Balboa Horizons.

In addition to supporting the recovery community, Dave has been involved with the Orange County homeless shelter, United Way, the Special Olympics, and providing planning and management consultation services to other small business owners.

Burr Cook

Burr Cook

Executive Clinical Director


As Executive Clinical Director, Burr oversees clinical operations at Balboa Horizons. He has worked in healthcare since the mid-1970s and has worked in state-licensed inpatient addiction treatment centers and detoxification facilities as a nurse, counselor, program developer and director, educator, and director of admissions since 2003.

Burr is a Board Registered Interventionist through the Association of Intervention Specialist Credentialing Board (AISCB), a Certified Alcohol and Drug Counselor (CADC II), a Nationally Certified Addiction Counselor (NCAC), Certified Intervention Professionals (CIP), and a Registered Nurse. He is a member of the California Association of Alcohol and Drug Abuse Counselors (CAADAC), the National Association of Alcohol and Drug Abuse Counselors (NAADAC), and past President of Network of Independent Interventionists (NII). He also served on the boards of NII and PALM (Problems of Addiction in Labor and Management). His experience and knowledge of the intervention, treatment, and recovery process has given him the resources and skills necessary to implement comprehensive, effective recovery plans for clients and their families.

Burr believes an essential piece of recovery is the participation of the entire family in the recovery process.

Dr. Elizabeth Roberts

Medical Director

Dr. Elizabeth Roberts has been caring for the patients at Balboa Horizons for over 5 years. She is board certified by the American Board of Psychiatry & Neurology. Dr. Roberts is responsible for the evaluation and diagnosis of every patient who comes through our program and manages the psychiatric medication for all of Balboa Horizons clientele. She has been practicing psychiatry for over 25 years. Her passion for protecting psychiatric patients from the harmful effects of being over-medicated by doctors has inspired her writings.

Dr. Roberts has published a book and articles on the subject of patients being mis-diagnosed and over-medicated. Her publications brought her to the attention of a House Sub-committee who was investigating the harmful effects of psychiatric medications on children as it follows them into adulthood. Dr. Roberts was invited to testify in Washington DC as an expert witness before this House Committee on the damaging effects of mis-diagnosis and over-medicating of psychiatric patients. Dr. Roberts has appeared on The Oprah Show, The Today Show, ABC News in Chicago, CBS News Los Angeles, NBC News in San Francisco and CNN. She was featured as the addiction expert on the educational video: “Think Don’t Drink.” Her radio appearances include: Washington Post Radio, Washington D.C.; The Milt Rosenberg Show, Chicago; The Pete Wilson Show, San Francisco; Positive Parenting, San Francisco, and others. Dr. Roberts has been published in the Op-Ed pages of The Washington Post and The Pittsburgh Post-Gazette and quoted in other publications such as the Chicago Tribune and Chicago Sun Times. She is the author of the book: “Should You Medicate Your Child’s Mind.”

Dr Roberts completed her undergraduate studies at the University of Michigan, her Medical Degree at Rush Medical College in Chicago, her Psychiatric Residency at the University of Hawaii and her Fellowship in Child and Adolescent Psychiatry at Northwestern University in Chicago.

Dr. Roberts believes an essential part of addiction recovery is addressing a person’s mental health issues with a measured approach and not with an abundance of sedating or dangerous psychiatric medications.

Dr. Gregory Murray

Chief Marketing / Learning Officer

Greg brings 30 years of experience as an organizational leader to Balboa Horizons. His visionary approach to success and sustainability is highlighted through his leadership in building some of the most advanced employee assistance, work-life wellness and addiction-based education programs in North America; and in leading the development of the highly regarded AFL-CIO Members Assistance Program, delivering broad-brush addiction and wellness services to government agencies, unions and companies across Tennessee. Greg has also focused extensively on developing and teaching courses that strategically address the complexities inherent in labor-management contract negotiations, and he possesses expertise in creative networking and building productive community-based relationships.

Greg’s education includes a doctorate in Executive Leadership and Education at the George Washington University in Washington D.C., and a Master of Science Degree from the University of Massachusetts-Amherst.  He is a visiting professor at Nanjing University’s MBA program in China. His notable work in adult education includes the development and delivery of college residency programs at the International Association of Machinists and Aerospace Workers’ education center in Maryland, and within the State University of New York (SUNY) system, as well as coordinating graduate programs in collaboration with the University of Massachusetts – Amherst.

Greg’s research in the field of organizational sustainability is published, and he recently completed his first novel. He is a frequent presenter at conferences on a range of topics that focus on motivational leadership, organizational culture, organization sustainability, and the impact of addiction and psychosocial problems on organizational behavior and outcomes. Greg remains grounded by helping addicts find freedom from the slavery of addiction, and by sharing his personal story of transformation. He believes that in order to keep what he values most, he must give it away.

Katy Alexander

Director of Admissions

Katy serves as the Admissions Director for Balboa Horizons. She has almost 12 years’ experience in working in the substance abuse field in roles ranging from Admissions Director to Financial Administrator, Insurance Administrator, Business Development, and Program Director.

Responsible for overseeing the admissions department, screening and assessment of prospective clients, coordination of admissions, verification of benefits, appropriate client intake and maintaining relationships in the community, Katy is passionate about helping others find their path to recovery and assisting them through the process.

Katy believes an essential piece of recovery is finding out who you are, and being the best at it.

David Buckley

Chief Financial Officer

David comes to Balboa Horizons with 28 years in healthcare finance experience, eight of which are specifically in the recovery industry. As Chief Financial Officer, he brings his considerable experience to oversee all financial operations of Balboa Horizons.

Most recently, David served as Vice President of Finance for Elements Behavioral Health where he was responsible for oversight of corporate and financial operations while facilitating tremendous growth—helping the company grow to one of the largest behavioral health companies in the nation. He has a Masters from Thunderbird School of Global Management.


Holly Han

Holly Han

Clinical Director

Psy.D., M.F.T.

Holly is the Clinical Director at Balboa Horizons. She is a licensed Marriage and Family Therapist and also holds a doctoral degree in psychoanalysis which she obtained from Newport Psychoanalytic Institute in 2008.

She has been in the addiction treatment field for almost 20 years and has worked in drug court, private practice, and other residential settings. She has taught courses on addiction and also supervises and provides consultation for other therapists.

Holly believes that all people suffering from addiction deserve the help they need to move from a life driven by inner compulsion to a life driven by inner freedom.

Christine Deguchi

Director of Human Resources and Administration

Joining the Balboa Horizons team in 2015, Christine brought a 20-year record of extensive accomplishments in Human Resources and Operations Management in both start-ups and established organizations.  She has demonstrated successes in multi-plant, international operating environments.

As a highly accomplished Human Resources and Administrative executive and manager, Christine has a solid record of success partnering with senior management in providing extensive strategic and hands-on expertise developing HR programs and processes supporting business objectives and goals, and turning strategic vision into reality.

Prior to joining The HR Team at Balboa Horizons, Christine headed Human Resources for Robinson Pharmaceutical where she supported 400+ employees and partnered with manufacturing Operations Unit leaders to ensure alignment of HR strategies with business initiative and goals.

Christine holds numerous certificates in Employment Law and Human Resource Management from George Washington University and California State University, Dominguez Hills, and is an active member of the Professionals in Human Resources Association (PIHRA) and the Society for Human Resources Management (SHRM)

Christine believes an essential piece of recovery is creating a work environment where everyone works together as a team to provide only the best for our clients.

George Hoke


As IOP Director, George is responsible for crisis management, one-on-one client counseling sessions, as well as facilitating psychoeducational group sessions, and overseeing the entire Balboa Horizons IOP program.

A Certified Drug and Alcohol Counselor with over 16 years in recovery, and 20 years experience in sales, he parlays his business acumen into helping clients develop life skills and a workable plan for the future. Through volunteering, George found his life’s purpose in helping other people with their personal recovery.

George believes an essential piece of recovery is learning how to form authentic relationships.