Let us help you live a better life!

About Us

Founded in 2003 in New York, PAC is one of Arizona’s leading providers of behavioral health services. We offer a variety of services for substance use disorders, addictions, and mental health issues, including IOP and outpatient programs tailored to meet our client’s needs.

About the PAC Program

Our mission is to offer a community of support to clients in recovery, while providing support to the client’s families. Our belief is that if change occurs with both the client and their support system that there will be greater success throughout the client’s recovery process. PAC stands for Promise, Achievement, and Commitment. Our name represents the foundation of our beliefs, how we treat our clients, and our dedication to finding health and happiness for all.

PAC accepts many insurances including Medicaid, Blue Cross Blue Shield, United Healthcare, and Tricare.

We welcome you to explore our site and learn more about our leadership, staff, and services. Take the first step and decide that you want a better life.
We will provide the best and most comprehensive care for our clients and their families.
Our goal is for our clients to realize and live a life full of hope and joy.
Our counselors and their clients will build a mutual trust and understanding relationship that will lead to a successful and sustained recovery.

Meet Part of Our Team

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Kevin L. Ross, Ph.D

Chairman and Founder

Kevin L. Ross, Ph.D., the chairman and founder of PAC Program, is a psychologist with more than 25 years of experience in the behavioral health industry. In 2003, Dr. Ross started the PAC Program to provide outpatient treatment for people with addiction and mental health problems in the New York City area. Over the years, Dr. Ross has designed and implemented industry-leading integrative care programs for clients that are now available online or in person at PAC's treatment centers. Dr. Ross has also received the Award of Excellence from the United States Marine Corps.

Melissa Jackson, LPC

Chief Operating Officer

Melissa Jackson is a licensed professional counselor with more than 20 years of experience in behavioral health and addictions. Throughout her career she has been able to serve a variety of populations in nonprofit, educational, and private sectors. Ms. Jackson brings authenticity and empathy to any situation whether that be with the clients being served or the teams she leads. She is currently completing her doctoral degree in counselor education and supervision to further strengthen her leadership skills and provide the best support to clients.

Alexis Lloyd, LPC

Director of Clinical Services

Alexis is a St. Louis native and moved to Arizona in 2022 to get a break from the Midwest winters. She completed her bachelor’s at Xavier University of Louisiana, her master’s in clinical mental health counseling at Webster University and Alexis is currently finishing her PhD in Counselor Supervision and Education at Adler University. Alexis currently holds her independent license in three states (Arizona, Illinois, and Texas). She is passionate about mentorship, teaching, and helping counselors find their niche in the mental health field. Alexis has experience working with children and families experiencing trauma and DCS involvement, sexual assault and domestic violence survivors, SMI, eating disorders, trauma, and substance use. Alexis’s values openness, integrity, and honesty. She’s a proud dog mom of a 2-year Rottweiler named Oakley. Her favorite hobbies are anything competitive (especially UNO or Phase 10), spending time outdoors with her dog and catching a hockey game.

Lucas Bailey

Director of Operations

Lucas Bailey has worked in the behavioral health field, serving both the substance abuse and mental health communities. He has experience in residential, outpatient, and inpatient treatment, and he has experience working in involuntary psychiatric stabilization. With a background in both operations and billing, Mr. Bailey is pursuing a degree in psychology to further his education and ability to provide the best possible care for his clients.
Portrait of Joseph Trop-Zell

Joe Trop-Zell

Director of Quality and Compliance

Joseph Trop-Zell is a healthcare administrator with experience in managing residential, outpatient, and dual diagnosis substance abuse and gambling addiction programs. With a focus on operational management, compliance, medical billing, and medication management, Mr. Trop-Zell has developed a deep understanding of the complexities of the behavioral health field. He previously worked as a director of operations, group facilitator, case manager, medication technician, and behavioral health technician. Mr. Trop-Zell's diverse experience in the industry has allowed him to approach his work from a well-rounded perspective and provide the highest quality care.

Joy Petty, LMSW

Director of Admissions and Medical Services

Joy Petty is a Texas native and is a Licensed Master Social Worker with over 25 years of experience working in the behavioral health field. Joy earned her bachelor’s degree from Texas Lutheran University and her master’s degree from Arizona State University. Having served as a social worker with various populations in child welfare, homelessness, veterans, adult/child behavioral health, and inpatient behavioral health settings, Joy’s primary focus is being trauma-informed and bringing mindfulness to the populations she serves. Joy has worked in a variety of leadership capacities throughout her career and enjoys developing meaningful relationships with employees to develop their abilities, looking to incorporate being trauma-informed and using mindfulness as a leader.

Kevin Lunceford, MFT

Director of Utilization Management & Special Projects

Kevin has been in the mental health profession for 19 years. Graduating Arizona State University with a Bachelor of Science/Psychology and then a Master from University of Phoenix in Marriage, Family, and Child Therapy. He has worked will all age groups in several specialty areas. Kevin has worked in Utilization Review and Management for more than 8 years. Kevin has worked as therapist on Mobile Crisis Teams doing in home interventions with individuals experiencing Suicidal Ideation, substance abuse crisis and family emergencies. Kevin comes from a Dialectical Behavioral Therapy (DBT) perspective. Personal core values are very important, integrity and accountability are key aspects. Kevin is a husband of 39 years, has six children and 12 grandchildren.

Victoria Stallings, ICGC – I


Victoria is an Army veteran and is certified to treat gambling disorder by the International Gambling Counselor Certification Board. She has been working with people who have gambling disorders for over nine years. Before her certification, Victoria was the manager of The Brain Center, providing neurofeedback to people recovering from addictions and mental health issues. She has five years of experience in equine assisted therapy and has worked in the treatment field for 13 years. Victoria is currently working on becoming certified to treat video game addiction.

Bobby Engel


Bobby Engel is a primary clinician having worked the last 8 years in a wide array of recovery service positions. Beginning as a BHT where his foundation in connection with clients was built. Bobby has since worked as a medical coordinator, a residential housing director and a group facilitator for gambling and substance abuse disorders. As a recovering compulsive gambler, his most treasured item is his own personal recovery journey. Bobby is dedicated to helping problem gamblers just like himself find a renewed sense of purpose and reason to live.

Scott Melissa


Scott began his career in the problem gambling field while working at the Massachusetts Council on Compulsive Gambling under contract for the Department of Public Health and Bureau of Substance Use Services. He has been in the field of problem gambling for 15+ years in a variety of treatment and leadership roles. Scott believes in the field of problem gambling, providing advocacy, education, and awareness, along with building supportive connections for those being referred for treatment, are the keys to successfully engaging with others. As the Director of Outreach and Engagement, Scott delivers trainings designed to increase knowledge and readiness for addressing problem gambling prevention and related behavioral issues. Scott’s training background earned him a reputation that allowed him to successfully train many clinical providers, probation and parole officers, and social services providers. Scott enjoys meeting new people and learning about their lives and backgrounds. He easily finds common interests with like-minded individuals and tends to make most people feel comfortable.

David Zoni, BA

Director of Strategic Partnership, Gambling Treatment

David Zoni has a bachelor’s degree in early childhood education and psychology. David has been working in the gambling addiction field with the PAC program since the beginning. David works with like-minded organizations to bring treatment, awareness, and prevention to the gambling treatment community. He appreciates the courage it takes to get help and with his experience helps the clients with the transition for their gambling addiction.

Mark Lefkowitz, ICGC-II

Group Facilitator and Program Liaison