Meet the Heart Behind River Ranch Recovery
At River Ranch Recovery, our team is more than a staff — we’re a community of compassionate professionals dedicated to helping you heal, grow, and thrive.
From clinical experts to peer support specialists, every member of our team shares a common purpose: to help you rediscover hope and lasting recovery.

David Marvin
CEO / Owner
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Lily Levine
PMHNP-BC
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“I became a provider to help individuals overcome mental health challenges and thrive. With the right care, I’ve seen people blossom, and I wanted to be part of that journey.
My goal is to offer compassionate, educated, and collaborative care to those in need. The most rewarding part of my job is building trust with patients and their families, understanding their needs, and working together to create a path to healing and fulfillment.”

Steven Abdelmalak
Medical Director
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Denise Dunn
Licensed Alcohol & Drug Counselor
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Denise was born and raised in the Midwest, where her parents encouraged her to be involved in community service. She attended colleges in Minnesota, including Anoka-Ramsey, Bemidji State, St. Thomas Business School, and Hazelden Betty Ford Graduate School of Addiction Studies. Additionally, Denise is trained as an Advanced Accelerated Resolution Therapist.
She now has over 30 years of experience in behavioral healthcare, with roles at the Amhurst Wilder Foundation, Hazelden Betty Ford Foundation, American Addiction Centers, and Banyan Treatment Centers. Her experience includes counseling, case management, clinical supervision, standards and quality, work with state and regulatory agencies including The Joint Commission, CARF, and ASAM, facility launches throughout the country, clinical informatics, project management, regional executive director, executive director, and consultant.
Denise is an extremely motivated, mission-driven individual dedicated to helping others find their path to healing.
Professional Licensures include:
- MN Licensed Alcohol and Drug Counselor, active since 1999 (#300531)
- NV Licensed Alcohol and Drug Counselor, active (#06589-L)
- International Certification & Reciprocity Consortium (IC&RC) Internationally Certified Advanced Alcohol and Drug Counselor, active
- PA Certified Advanced Alcohol and Drug Counselor, active
- TN Licensed Alcohol and Drug Abuse Counselor, active