Our Staff

Our staff includes psychiatrists with a variety of specialties, clinical psychologists, licensed clinicians, dietitians and other healthcare professionals who together provide a comprehensive range of diagnostics, pharmacology and therapies. A team of experts is built around each client, selected to match as best as possible the needs of the case with the skills of the team members. 

Mark Melden

Mark Melden, DO/DABPN

Psychiatrist, CEO/President of Crownview Co-Occurring Institute

Dr. Melden earned his Doctorate in Osteopathic Medicine at Philadelphia College Osteopathic Medicine and went to USC Presbyterian Hospital for his residency in Family Medicine.  He then completed his Psychiatric residency at the University of California, Irvine and went to UCSD Geropsychiatry pursuing a fellowship. Dr. Melden has over 14 years of experience as a clinician specializing in treating child and adolescent, adult and geriatric clients. He has devoted his life to psychiatry in a variety of different treatment settings including in- patient and out-patient environments. He specializes in the psychiatric evaluation, complementary therapy approaches, and medical management of individuals suffering from mental illness.  Currently, he maintains a private practice with Crownview Medical Group in Coronado and Carlsbad, California where he is CEO/President.

Dr. Melden is a dedicated medical professional who provides a spectrum of services from general care to specialized state-of-the-art treatment. He is committed to providing specialized and individualized services with a comprehensive treatment plan for each client he treats. Dr. Melden believes the optimal way to provide excellent care is through continued attention and maintenance.


Jeffrey Klein 

CEO/President, Solutions in Recovery

After 11 years of experience in the field of Information Technology, Jeff was inspired to change careers as a result of his own experience with treatment and recovery in 2005. While completing his education in alcohol and other drug studies (AODS) at San Diego City College, he was hired at a long-term, residential treatment center for those suffering from severe psychiatric disorders and drug addiction. During his six year tenure, Jeff gained extensive experience in crisis intervention, case management and the overall treatment of co-occurring disorders. As Milieu Operations Director, he was instrumental in the development of the Chemical Dependency Department and was responsible for oversight of the company’s support staff and Housing and Admissions Departments.

In an effort to make treatment more accessible to those suffering from acute psychiatric symptoms, Jeff extracted tools and techniques being practiced in long-term psychiatric care and coupled them with his knowledge of standard chemical dependency interventions. This new and effective modality has since been adopted by the Intervention and Recovery Institute (IRI) in San Diego and continues to yield highly successful outcomes.
In 2013, Jeff was instrumental in reopening Pemarro Recovery Center, a sub-acute medical detoxification facility. While there, he worked diligently to build a comprehensive treatment program, focusing on providing clients a safe and effective detox and creating individualized transition plans to provide a structured path for clients to follow once they discharge. 
In May 2014, Jeff Klein and Dr. Mark Melden met over lunch to discuss a new approach to meeting the large and growing need of services for those suffering from psychiatric and substance abuse disorders. Through meticulous planning, intense effort and the formation of great team, Crownview Co-occurring Institute and Solutions in Recovery have established a successful partnership, bringing hope, healing and restoration to many wounded lives. 
Nathan Kummerlie

 Nathan Kuemmerle, MD

Dr. Nathan Kuemmerle graduated from UC Irvine-College of Medicine with General Adult Psychiatry Residency training in Los Angeles. He has trained extensively in UCLA, Cedar-Sinai, VA and L.A. County systems. As an outpatient psychiatrist, Dr. Kuemmerle has worked extensively in California, including Downtown Los Angeles, Northern California, South Central, West L.A., and now Carlsbad. 

Dr. Kuemmerle has been in actual private practice for five years and has continued to stay updated in the latest and best medical treatments for all psychiatric diagnoses. Dr. Kuemmerle was born in San Diego, lived locally, and attended Torrey Pines High School in Del Mar, California.

Laura Hopper

Laura Hopper, Ph.D.

Licensed Psychologist PSY25788

Laura Hopper is an experienced psychologist with a strong background in psychological and neuropsychological evaluations, including the speciality of working with retired athletes. She has an extensive background in diagnostic and treatment planning, and in vocational testing. She has worked closely with our family interventions and both individual and group therapy programs, and participates in CCI’s weekly treatment team meetings to stay current with all facets of the cases she is involved with. Coming from a successful private practice and with a strong academic background, her work in our team setting has been highly effective.

Laura’s clinical understanding of cognitive and behavioral therapies, competency assessments, psychodynamic and interpersonal therapies, and juvenile delinquency issues give her a range of skills that enhance the success opportunities of each case she is involved with. 

Her academic credentials include a BS in Psychology, with emphasis on Law and Criminal Behavior; a MS in Clinical Psychology, both from California Lutheran University, and a Ph.D. from Alliant International University, California School of Professional Psychology.

Milena Dun PhD

Milena Dun, PhD

Dr. Dun earned her Doctorate Degree in Clinical Psychology in 2010 from Alliant International University, California School of Professional Psychology in San Diego, California. She became licensed in 2016, and has more than 10 years of clinical experience working with various populations and with a wide variety of psychiatric disorders. She has experience in providing care in outpatient and inpatient settings, including crisis intervention centers, hospitals, and community agencies. 

Dr. Dun is trained in long-term as well as short-term interventions, including psychodynamic therapy, DBT (Dialectical Behavior Therapy), and EMDR (Eye Movement Desensitization and Reprocessing). She has tended patients with various clinical needs, such as relational stress, attachment issues, anxiety, depression, trauma, severe mental illness, substance use, psychological distress related to chronic medical illness, personality dysfunction, academic and developmental issues. Dr. Dun has experience with working with adults of various ages, as well as with adolescents, and provides individual, family, couples, and group treatment.   

Presently, Dr. Dun is dedicated her time to working with clients at Crownview Co-Occurring Institute. Dr. Dun is bi-lingual and offers services in English and Russian. 

Haha Moses PhD

Maha Moses, PhD


Dr. Moses earned her Master’s Degree in Professional Psychology from the Universitė de Nice Sophia Antipolis, Nice, France. She obtained her doctorate degree in Clinical Psychology from Alliant International University California School of Professional Psychology in San Diego, California.

Dr. Moses has over 20 years-experience treating a wide array of psychiatric disorders with adults and adolescents. She has worked with clients who suffer from acute and chronic disorders in a number of settings including psychiatric hospitals, residential treatment centers and community agencies. For the past 10 years, Dr. Moses has provided therapy at a drug and alcohol treatment center, with in-patient and out-patient services, focusing on her clients’ substance abuse and other co-occurring psychiatric disorders such as anxiety spectrum disorders, mood disorders-including depression and PTSD.

In her private practice, Dr. Moses also provides psychological evaluation, pre-surgical psychological clearance, and psychological services to clients within pain management. She has extensive experience in psychological assessments with children and adults in a variety of settings. Her life experiences and years of practice have significantly enhanced her approach to therapy and she is passionate about her practice.


Rebecca McKnight, PsyD


Dr. McKnight earned her Bachelor’s Degree in Psychology at UCLA and received her Doctorate of Psychology in 2009 from Alliant International University California School of Professional Psychology in San Diego, California. She has been licensed since 2010 and has over 10 years of experience in the mental health field at various locations and with different populations.

Some of her work and training experiences include individual therapy, couples therapy, inpatient and partial hospitalization treatment, correctional (prison) psychology, PTSD study for the VA and long-term therapy and psychological evaluations with adolescents and adults.

Most recently she worked with active duty military personnel at the Mental Health Clinic at the Naval Hospital Camp Pendleton from 2012-2014. She has maintained her own private practice since 2009 because she is passionate about therapy and psychological testing.

Dr. McKnight treats adolescents and adults and provides individual and couples therapy as well as psychological evaluations. In her practice, Dr. McKnight focuses on a whole-person approach and incorporates CBT and mindfulness into her practice. Currently, she has dedicated her career to full-time private practice with clients at Crownview Medical Group and Crownview Co-Occurring Institute.


Kathleen McCarrick, MSW, LSW

Kathleen is a licensed social worker with an 18-year background in acute psychiatric care and crisis intervention. Her highly respected private practice in psychotherapy, for individual clients and in group settings, gives her the depth and range of direct experience to assess, identify and treat multiple psychiatric issues. Among her professional strengths are her problem solving and decision making skills, intervention capabilities, treatment plan development, and effective communication with family members of her clients. She also has an extensive background in discharge planning and community resources. She served ten years at Brooke Glen Behavioral Hospital as a social case worker.

One of her passions is advocating for women victimized by domestic violence, with many years of front-line service as a domestic violence advocate. She has served as advocate at the Women’s Center of Montgomery County, Pennsylvania, as a Crisis Pregnancy Hotline volunteer during her school years, and as a Drop-In Center Crisis Counselor. Kathleen has received numerous awards for service excellence. Her academic background includes a MS as Social Worker from Widener University in Chester, PA.


Brieana Wright-Turner

MA, Counseling Psychology

Breiana specializes in psychoeducation, psychotherapy, trauma-informed care, and teaching coping and life skills. She has a strong background in working with teens and adults with severe emotional and behavioral issues, establishing "safe environment" settings for working one-on-one to promote healing of family relationships, work through alcohol and drug dependencies, and restore healthy lifestyles. Her passion is seeing families and couples create strong, nurturing bonds that enable the healing process. 

Breiana has an impressive resume including stints with adult rehab programs, recovery programs for troubled youth unable to function well in school or home, and partial hospitalization programs. She holds a BA in Child and Adolescent Development from San Francisco State University and a MA in Counseling Psychology from National University, San Diego. She loves running, traveling, cooking, watching the San Diego Chargers, and relaxing with family and friends.

Jennifer DeVore

 Jennifer DeVore, M.A., LMFT

Program Director

“It is truly amazing to witness an individual connect their experience with their emotions and begin a new journey with recovery.”

Jennifer entered the behavioral health field in 2004. Her roles have included implementing direct intervention with clients, case supervision, individualized programming, and parent training, clinical and program development, as well as business development. She earned her Bachelor of Arts in Psychology from California State University, East Bay. Her passion for working with families, individuals, and couples led her to pursue a Masters degree in clinical psychology with an emphasis in marriage and family therapy from Pepperdine University.

Jennifer truly enjoys working with her clients to facilitate a safe and open environment for change and growth.


Gabriel Good

Gabriel Good is a native Californian born in Stockton and raised in San Diego. He traveled all over the United States as well as other countries taking an interest in people, religion and culture. He pursued many areas of study including psychology, nursing and music and found the greatest interest in the study of counseling. While pursuing a certification in drug and alcohol counseling Gabriel directed and managed Rancho Coast Recovery for a period of three years and on a parallel became a case manager at the start of Crownview Co-occurring Institute. Eventually he moved into a director level position, taking on both business development, admissions, and discharges including continuing care placement.

Kenneth Gladstone

Kenneth Gladstone 

Logistics Director

Kenneth Gladstone moved to San Diego from Long Island, New York. He studied Psychology and History at Stony Brook University College and quickly found work at a fast-paced Agricultural Sales and Logistics company. Kenneth held many titles throughout his stay with the company including sales manager, logistics director, operations manager, and CEO. 

With encouragement from many, Ken decided to pursue his true passion of working with those dually diagnosed with mental illness/substance abuse. Kenneth worked for several years as a certified drug and alcohol counselor and gained extensive experience specializing in the adolescent population before being offered a position at the Crownview Co-Occuring Institute. Kenneth Gladstone currently works as Crownview’s Logistics Director and oversees all residential and transitional housing.


Steven Murphy

Milieu Director

As a native of San Diegan, Steve had a long career in carpet installation, when he decided to change his career path. Having gone through treatment himself, Steve developed a sincere passion for helping others. Steve studied at San Diego City College and graduated with a certificate in Alcohol and Other Drug Studies. After his internship at a drug and alcohol program, Steve began his career in a mental health where he developed his skills working with clients suffering from addiction and mental health disorders. In 2014, Steve joined the Crownview Co-Occurring Institute Team as the House Manager providing overall supportive services to clients. Over time his expertise grew and he became instrumental in developing the program structures and procedures. In addition, Steve has utilized his skills to develop numerous strategies and interventions to address clients resistant to treatment that have resulted in success, often when all else failed. As Milieu Director, Steve’s primary role is to have a touchpoint on the client community and crisis intervention management.



760.433.HELP (4357)
315 N. Clementine Street
Oceanside, CA 92054

2892 Jefferson Street
Carlsbad, CA 92008 

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760.433.HELP (4357)