Our Clinicians

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.


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.


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.

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.


Brieana Wright-Turner, MA


Brieana 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.

Brieana 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.

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Brittany Perkins, M.A., MFTI


Brittany specializes in family systems and parent-child relationships, as well as psychoeducation, trauma-informed care, and teaching communication and coping skills. Brittany has significant experience in working with various emotional and behavioral issues such as depression, anxiety, eating disorders, ADHD, family dynamic issues, substance abuse and severe mental illness all in a range of settings from schools and nonprofit programs to outpatient and partial hospitalization programs. Brittany has a passion for instilling confidence and promoting self-compassion to aid in empowering clients to take control over their own recovery. Brittany wants to support all clients in building healthier relationships both with themselves and other people by providing hope, individualizing each client’s treatment, and utilizing various theoretical and systemic approaches.

Brittany graduated from UCLA with a B.S. in Psychobiology and went on to USD to receive a M.A. in Marriage and Family Therapy. In her spare time, Brittany enjoys coaching her alma mater high school dance team, as well as doing CrossFit and spending time with family and friends.

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Joanne Talbot-Miller, M.A., LMFT


Joanne Talbot Miller is a licensed marriage and family therapist with a background in crisis intervention. Joanne began her career as an MFT working in an emergency shelter program for survivors of domestic violence and human trafficking with substance abuse and severe mental health issues. Joanne has provided individual and group therapy within residential and outpatient transitional housing programs. She has facilitated groups on domestic violence education, safety planning, anger management, communication, substance abuse, prevention, and independent living. She has worked on a crisis hotline for students providing suicide assessments, suicide prevention and support to transitional age youth. Joanne provided crisis counseling and helped students connect with services such as drug and alcohol treatment, emergency housing, and mental health treatment.

Joanne’s career has a strong behavioral background working with children and adolescents with developmental, emotional, and behavior problems. Working with the whole family Joanne taught strategies to improve behavior, family functioning, and alleviate daily stress in the home.

Joanne brings an integrative approach to therapy that brings together the affective, behavioral, cognitive, and physiological levels of functioning. This approach helps individuals gain insight into themselves, and reduces unhealthy, dysfunctional defense mechanisms and patterns of behavior.

Joanne graduated from the University of Luton in England and continued her education earning her Master’s Degree in Marriage, Family, and Child Therapy from the University of Phoenix.

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Jordan Granata, M.A.

Psychological Assistant, Therapist

Jordan is a Pre-Doc PsyD Intern who comes from an in-depth background of psychology specializing in mindfulness based techniques and psychoanalytical therapies as well as being certified in drug and alcohol studies. The core belief behind Jordan's work with clients is to learn the "communication language" or "way of learning" for the client and attempt to correspond in a manner that best suits each, tailoring the treatment to meet their individual therapeutic needs.

Jordan impresses upon each client’s self-empowerment, inner freedom and peace of mind through equipping clients with a personalized skill of self-introspection, mental and emotional mindfulness, and communication skills. Aside from mental and emotional processing Jordan also teaches classes regarding psychoeducation and pharmacology.

Jordan completed his undergraduate B.S. in psychology at California Coast University, his drug and alcohol certification at U.C. Santa Cruz, and his Graduate Doctoral education at Ryokan College.

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Alexis Weintraub, M.A.

Psychological Assistant

Ms. Weintraub earned her Master’s Degree in Clinical Psychology and is currently working to complete her Doctorate Degree in Clinical Psychology from Alliant International University, California School of Professional Psychology.  Ms. Weintraub has more than seven years of experience in providing client care in outpatient and inpatient settings. These venues include crisis intervention centers, psychiatric hospitals, and community agencies.  Her expertise includes both short-term and long-term therapy with clients coping with: bipolar disorder, major depressive disorder, schizophrenia, generalized anxiety disorder, and obsessive-compulsive disorder.  Ms. Weintraub is also proficient in administering, interpreting, and writing psychological assessments.  Most recently she has worked with the LGBT community to address sexuality and gender identity issues and addiction to methamphetamine.  Ms. Weintraub is trained in CBT, ACT, DBT, and Mindfulness.  Ms. Weintraub is passionate about helping her clients gain the emotional tools to better understand what drives their behavior and that of their surrounding circumstances.  


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.

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 Christina Lam, N.P.

Nurse Practitioner

Christina Lam is dedicated Nurse Practitioner with years of nursing experience. Her background is in psychiatry, emergency, and critical care. She is a skilled communicator who is professional, personal, and very adaptable. She is self-motivated with energy, initiative, and focus. She has a keen insight into the needs and views of others. She is able to listen and identify issues or problem areas and form innovative solutions.

Christina Lam graduated from University of San Diego. She is board certified as a nurse practitioner. She specializes in Children, Adult, Family, and Geriatric psychiatry.

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Jodie Dahl, CpHT

Medication Technician

Jodie is a native Californian, born and raised in San Diego County. Jodie attended Grossmont and Miramar College. In 2003 she decided to further her education and become a Nationally Certified Pharmacy Technician and graduated from Grossmont Health Occupations Center. She holds experience in managed care as a Patient Benefit Manager. After 14 years of working in a pharmacy environment, Jodie made a career change towards her true passion of helping others in assisting them in their journey to recovery. She always wanted to pursue a career where she could be a part of a company that wants to make a positive difference in someone’s life. Jodie has always been compassionate and empathized with those that struggle with drug and alcohol addiction along with mental illnesses. Jodie joined Crownview in August 2016 and still utilizes her pharmacy background as the Medication Technician for CCI. 



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)