CODAC Leadership

Dennis Regnier, MADennis Regnier, MA

President & Chief Executive Officer

Dennis Regnier, MA is President and Chief Executive Officer of CODAC Health, Recovery & Wellness. He joined CODAC in October of 2011, hailing from outside Chicago, Illinois where he was President and CEO of Grand Prairie Services, a nonprofit behavioral health organization with $14M annual budget and 14 locations. He was there since 2000.

Mr. Regnier’s 46 year career in behavioral health services began with the Illinois Department of Mental Health and Developmental Disabilities in 1974 where he held both clinical and administrative positions. He also has extensive experience in the for-profit health care industry, including senior leadership positions at Forest Health Systems, Century Healthcare, Hartgrove Hospital and HCA Chicago Lakeshore Hospitals.

He has a Master of Arts degree in Public Administration from Governors State University and received a Bachelor of Science degree in Sociology from Illinois State University.

Eddie Ornelas_ColorEddie Ornelas, PhD

Senior Vice President for Integrated Health & Wellness Services

Eddie Ornelas has a PhD in Counseling and Psychology and Master’s degree in Counseling and Guidance from the University of Arizona. Since joining CODAC in 2005, Dr. Ornelas has held supervisory roles in various departments at CODAC including the Developmental Disability Team, Forensic Services Team, and as the Senior Director of Outpatient Services. Dr. Ornelas became a licensed psychologist in June of 2013. In his current role, Dr. Ornelas maintains oversight of all clinical services at CODAC.

Dr. Ornelas chose the field of counseling and psychology to help people and families reach their full potential and to live healthy, stable and productive lives. He believes in an integrative approach which nurtures the body, mind and spirit.

NNHNora Navarro-Hernandez, MS, CPHQ, CHC, CPC, LPC

Senior Vice President of Compliance & Outcomes

Nora Navarro-Hernandez has a Master’s degree in Counseling Psychology from Illinois State University and a Bachelor’s Degree in Psychology from the University of Illinois at Urbana-Champaign. She has an extensive background in behavioral health and specifically with providing services to the Latino population in Chicago. She is responsible for oversight of the Performance Improvement and Planning Department at CODAC including: Quality Management, Training, Data Validation, Utilization Management and After-Hours Services at CODAC. Ms. Navarro-Hernandez has been employed with CODAC since 2005.

Steve Bupp, MDSteve Bupp, MD

Medical Director

In addition to being the Medical Director at CODAC, Steve Bupp, MD has his own private practice and is Staff Psychiatrist at Arizona Biodyne and Chief Executive Officer of Southwest Biomedical Research Foundation, and holds many other professional affiliations. He earned his MD from the University of Kansas and his undergraduate degree from Wichita State University. Dr. Bupp is responsible for the medical care of all CODAC members and oversight of delivery of all services. He began working for CODAC in October of 1995.


Sabreen Boone, DOSabreen Boone, DO

Associate Medical Director

Sabreen Boone, DO is a family medicine provider with over 12 years of experience practicing medicine. She has also held progressively responsible leadership roles during her career, including owning and operating a concierge medical practice in Tucson for five years.

Dr. Boone received her Doctor of Osteopathy (DO) degree from the University of Medicine and Dentistry of New Jersey School of Osteopathic Medicine. She also completed a Family Medicine Residency and Integrative Medicine Fellowship at the University of Arizona Department of Family and Community Medicine. She is currently pursuing her Masters of Medical Management from the University of Arizona Eller School of Business. She is a member of the American Association of Family Physicians and the American Osteopathic Association.

As Associate Medical Director at CODAC, Dr. Boone is responsible for providing high quality care; establishing policies and procedures and recommending changes to improve patient experience and outcomes; supervising and evaluating the work of medical staff; and working collaboratively to further develop CODAC’s integrated care model and services, among other critical functions.

Kristine Welter HallKristine Welter Hall

Senior Vice President of Marketing and Business Development

Kristine Welter Hall is Senior Vice President for Marketing and Business Development.  Kristine began her career at CODAC in 2003, spent time at University Physicians Healthcare and the Community Foundation for Southern Arizona, and returned to CODAC in 2009 where she has held progressively responsible roles.

At CODAC, Kristine leads internal and external communications, community relations, marketing and advertising, fundraising, strategic planning and business development initiatives and has a large role in facilities planning and design.

Kristine is also the administrative lead of CODAC’s division that serves sexual assault survivors: the Southern Arizona Center Against Sexual Assault (SACASA). In this role, she oversees grant administration, community collaborations, strategic initiatives, fundraising (including coordinating the annual Dine Out For Safety event) and sits on a variety of task forces aimed at enhancing services for survivors of sexual violence.

Kristine was recognized as one of Tucson’s 40 Under 40 in 2011 and was a member of the 2011-2012 class of Greater Tucson Leadership during which she co-led the creation of Tucson’s now iconic (though recently moved) I Am Tucson mural. Kristine was on the Board of the GLBT Chamber of Commerce (now called LGBT Chamber of Commerce) and the Public Relations Society of America (PRSA), Southern Arizona Chapter. She has been an active participant in many community event planning committees such as the Tucson Recovery Expo, Community Mental Health Arts Show, Take Back the Night, and Out of the Darkness Walk, among others.

SearcyEstella Searcy, BSBA, MAOM

Senior Vice President of Workforce Management & Development

Estella R. Searcy is CODAC’s Senior Vice President of Workforce Management & Development and has been with CODAC since 2004. Her primary responsibilities include all aspects of the Human Resources department as well as some administrative coordination. She is a key participant in internal strategic planning, career development and procedural development for the agency. Estella maintains oversight of the recruitment and hiring process for all agency positions and monitors the evaluation processes for over 300 staff. Her extensive experience in human resources has contributed to awards for Workplace Excellence in 2008 and 2010.

Estella is dedicated to maintaining an environment that promotes positive employee relations and successful business practices. She holds a Bachelor’s in Business Administration and completed her course work for her Master’s in organizational management in 2000 from University of Phoenix and is a veteran of the United States Air Force. Estella has been employed with CODAC since 2004.

Amy MunozAmy Muñoz, DBH, MS, NCC

Vice President of Utilization Management

Dr. Amy Muñoz is Vice President for Utilization Management. Dr. Muñoz is a licensed therapist specializing in trauma, brief-solution-focused intervention, and cognitive behavioral therapy.

She holds a Doctorate of Behavioral Health Management through Arizona State University. She oversees the Utilization Management department which specializes in high acuity teams, hospitalization and residential services. Dr. Muñoz is affiliated with of several organizations including the AzHEC (Health Current) Health Information Exchange Clinical Advisory Council, Community Police Advisory Board and Tucson Metro Chamber of Commerce Emerging Leaders council. She has presented at several integrated health care conferences and has over 20 years of social service and behavioral health experience.

In addition to her clinical and administrative work, Dr. Muñoz has served as a CARF surveyor for over 12 years providing consultative feedback and accreditation to assist health and human service providers with adherence to best practices internationally.

Dan BardenDan Barden, MS, LISAC

Vice President of Clinical Services

Dan Barden serves as the Vice President of Clinical Services. He has an MS in Counseling in addition to over 30 years of experience in behavioral health. The majority of his career has been spent in rural behavioral health with a wide variety of duties including administrative and clinical oversight of a 16 bed inpatient psychiatric facility, residential substance abuse treatment programs, day programs for persons with Serious Mental Illness and standard and intensive outpatient programs substance abuse treatment programs for adolescents and adults. For the past six years he has been part of CODAC’s leadership team with responsibilities including oversight of the 24/7 MAT Clinic, two large general outpatient clinics as well as specialty services for mental health court ordered treatment, criminal justice involved programs, substance use disorder Intensive outpatient and standard outpatient treatment programs.

Rafael ArechagaRafael Arechaga

Vice President of Clinical Services

Rafael Arechaga is Vice President of Information Technology and has more than 16 years leading information technology at CODAC. He is responsible for keeping the organization current with respect to computing, communications, and cyber-security. In his time at CODAC he has implemented two different Electronic Health Records (EHR), upgraded all the networking to the latest offerings for the main sites, and outfitted all sites and staff with the state-of-the-art in technology and equipment.

Prior to joining CODAC, Rafael worked in software development with the Fortune 500 company Electronic Data Systems, providing systems to customers such as GM, Volkswagen, Phillips Petroleum, IBM as well as others. Rafael is currently a member of the Data Council for Health Current, the Arizona based Health Information Exchange (HIE) providing direction in the organizations development of its data offerings to all healthcare providers in Arizona and beyond.