Leadership

Denova Leaders

Welcome to Denova Collaborative Health’s Leadership Page, where innovation meets expertise. Our accomplished leadership team is committed to transforming healthcare and providing unparalleled service to our community through compassion, adaptability, innovation and reliability.
Our leadership team embodies these values, working tirelessly to ensure that Denova remains at the forefront of healthcare advancements. Get to know the visionaries driving our success and leading the charge toward a healthier future.

Graham B. Johnson, MAcc, CPA

Chief Executive Officer

Dr. George Orras, PhD, LCSW, MBA

Chief Clinical Officer

Silvia Garcia, MSW, MPA

Chief Administrative Officer

Craig T. LeBlanc, MBA

Chief People Officer

Briana Brown, MBA

Chief Information Officer

Angela Roumain RN, MPH, CPHQ

Vice President, Medical Operations and Quality

Anna Joyce, LPC, BC-TMH

Vice President, Behavioral Health

Cindi Wells, MBA

Vice President, Revenue Cycle

Jessica Holliday, PMHNP-BC, BC-TMH

Vice President, Psychiatric Services

Stephanie Lewis, MBA

Vice President, Operations

henry haun

Henry Haun

Vice President, Patient Experience and Engagement Center

Graham B. Johnson, MAcc, CPA

Chief Executive Officer

As the CEO of Denova Collaborative Health, Graham spearheads the strategic vision and operational success of the company. With a direct supervisory role over key executives, Graham’s leadership extends across various departments. Before taking on the role as CEO, he was an integral team member as Denova’s CFO, bringing extensive experience from a 15-year tenure at Deloitte & Touche. His expertise in audit engagements and financial strategy in diverse sectors like Technology and Healthcare helped bolster Denova’s growth. Graham’s academic achievements include a BS and a Master of Accountancy from Brigham Young University, and a CPA certification. Outside work, Graham dedicates time to mentoring youth at his church and enjoys family time with his wife and four children.

George Orras, PhD, LCSW, MBA

Chief Executive Officer

Dr. George Orras, the Chief Clinical Officer at Denova, has been pivotal in revolutionizing Arizona’s behavioral health sector. His role at Denova encompasses strategy formulation, innovation, and enhancing patient care. Dr. Orras’s  professional career includes being a co-founder and CEO at Windstone Behavioral Health/Windstone Health Services, alongside his academic contributions as an adjunct faculty member at the University of Southern California. He brings a rich background in managing behavioral healthcare, clinical operations, and strategic expansion. His prior roles include executive positions at various healthcare organizations, highlighting his versatility as a clinician and leader.

Silvia Garcia, MSW, MPA

Chief Administrative Officer

Silvia Garcia, is a first-generation Arizona native committed to serving communities of diverse backgrounds and bridging social gaps that deter equity. She leverages over a decade of social service experience to drive systemic improvements to the quality of life in Arizona. She has led statewide initiatives that address determinants of health and reflect her commitment to health equity. Working in both public and private environments, Silvia has a vast understanding of how to deploy a professional, results-driven management system that tracks and improves performance every day. Silvia’s educational background includes a Bachelor’s in Psychology and two Master’s degrees in Social Work and Public Administration from Arizona State University. As a co-founder of a club soccer organization, Silvia actively promotes activities that encourage youth to reach their full potential. In her free time, she enjoys spending time with her husband and children, traveling, outdoor adventures, and reading.

Craig T. LeBlanc

Chief People Officer

Craig is an experienced Human Resources professional with extensive corporate, entrepreneurial, and management consulting experience. With over 25 years in HR management, Craig’s expertise ranges from Change Management to Leadership Development to Equity & Design Planning and more. His previous roles at SimonMed Imaging and American Vision Partners, among others, underline his versatile corporate experience. Craig holds an MBA from Thunderbird School of Global Management and dual degrees in Human Resources and Accounting from Northeastern University. Craig resides in Scottsdale and has two children in college. He enjoys traveling, golf, and hiking.

Briana Brown

Chief Information Officer

As Denova’s Chief Information Officer, Briana Brown excels in driving technological advancements and operational modernization. With over 15 years in healthcare operations and technology, she has a proven track record of delivering significant savings and fostering centers of excellence. She is passionate about solutions that are designed on the fusion of people, process, and technology. Briana’s academic credentials include a B.S. in Management & Organizational Development and an Executive MBA. Being a native Tennessean, exploring all that Arizona has to offer has been an amazing experience. She is quickly becoming an avid scorpion hunter.

Angela Roumain RN, MPH, CPHQ

Vice President of Medical Operations and Quality

Angela Roumain leads Denova’s Primary Care operations and the Population Health, Compliance, & Quality programs as the Vice President of Medical Operations and Quality. With a nursing degree from Arizona State University and a Master’s in Public Health from the University of Arizona, she serves as the strategic facilitator and implementer, creating and managing successful outcomes through continual process improvement. Outside of work, Angela enjoys spending time with her husband and their 4 boys. She enjoys hiking, yoga, and caring for her flock of backyard chickens.

Anna Joyce, LPC, BC-TMH

Vice President, Behavioral Health

As Vice President of Behavioral Health, Anna brings a variety of mental health experiences to Denova, including working with individuals, families, eating disorder treatment, providing SMI evaluations, and providing supervision to clinicians and Clinical Directors. Her academic journey began with a BS in Psychology from Carroll University, followed by an MA in Professional Counseling from Ottawa University. Anna’s expertise in Tele-Mental Health and her role in implementing virtual care platforms at Denova have been instrumental for the company’s success. She enjoys spending her free time with her family, watching baseball, traveling, working out, and being outdoors. Anna is a strong advocate of health and physical wellness.

Cindi Wells

Vice President, Revenue Cycle

Cindi has over 25 years of experience in healthcare revenue cycle management and practice operations. She has managed both operations and revenue cycle management for small private practices, hospital-employed physician groups, ambulatory surgical centers, EMS providers, and large integrated practices. Cindi received her Bachelor of Science from Arizona State University and her MBA from Arizona State University’s W.P. Carey School of Business. She also is a Fellow in the American College of Medical Practice Executives and has obtained her CPC and CASCC through the American Academy of Professional Coders. Cindi is an Arizona native and resides in Chandler with her husband and two children

Jessica Holliday, PMHNP-BC, BC-TMH

Vice President of Psychiatric Service

Jessica’s extensive nursing background and 11 years tenure at HonorHealth, coupled with her Master’s degree in Psychiatric Mental Health, highlights her expertise and commitment to the mental health community. She has over 18 years of experience ranging in a variety of capacities: bedside/inpatient care, outpatient clinical care, and a variety of administrative roles. Throughout her career, she has always been driven to focus on the mental health community. This passion sparked during her nursing journey working on a unit focused on observation of acute psychiatric patients. Since then, she has done a great deal to pursue advancements in her education and career to work towards making an impact in the mental health community. Outside of her work, she loves traveling, hiking AZ trails, working out at her local CrossFit gym, and spending time with her partner, family, and friends.

Stephanie Lewis

Vice President, Operations

A native Arizonan, Stephanie has worked within non-profit healthcare systems for more than 15 years. During that time, her accomplishments have been focused on expanding services to communities across Arizona by improving access to care. Stephanie has extensive experience working with revenue cycle, clinic support services, and operations. 

She has a deep respect and understanding for process improvement, in turn improving the healthcare experience for the local community. Stephanie has a Bachelor of Arts in Education from Arizona State University and a Master’s degree in Business Administration from Grand Canyon University. Additionally, she has completed training in Lean, Six Sigma, and Black Belt. 

Outside of work, Stephanie is a certified barre instructor, and she enjoys hiking, running, and more. She also loves spending time with her family, friends, and dogs.

henry haun

Henry Haun

Vice President, Patient Experience and Engagement Center
Henry Haun serves as the Vice President of Patient Experience at Denova, where he is dedicated to enhancing customer satisfaction and driving operational excellence. With a proven track record of leading high-performing teams, implementing innovative strategies, and optimizing service delivery, Henry has played a key role in boosting satisfaction scores and improving team performance. His expertise in data-driven insights and employee development has made a significant impact across the organization. Henry holds a degree in General Studies, is a Six Sigma Black Belt, and a Certified Associate in Project Management. He also maintains an Active Life and Health license in Arizona, along with several other professional certifications. Outside of work, Henry loves traveling with his wife and two daughters, exploring new cultures, and embracing the outdoors. He values a healthy lifestyle and enjoys spending time with a diverse circle of friends.