Our Staff

Adeeb Khan

Executive Director

Adeeb is the Executive Director of Delta Dental of Colorado Foundation. He was previously senior director of corporate social responsibility at TIAA, senior director of volunteer engagement at Mile High United Way, and regional director of health & safety and community services at American Red Cross. He holds an MBA from the Daniels College of Business at the University of Denver and a BA in Communications from the University of Southern California Annenberg School for Communication and Journalism. He is currently serving on the board of the Denver Metro Chamber Leadership Foundation, Executives Partnering in Children (EPIC), the Daniels College of Business, and is a Commissioner on the Early Childhood Leadership Commission (ECLC). 


Megan Wilson

Deputy Director

Megan leads Delta Dental of Colorado Foundation’s philanthropic and policy efforts. She is responsible for focusing the foundation to expand access, increase prevention and facilitate the connection between oral and overall health across Colorado. Most recently, she was the executive director of Reach Out and Read Colorado. She has spent her career working in the nonprofit sector focused on family support and advocacy and has extensive experience leading teams and developing programs. She has a master’s degree in public service management from DePaul University. She serves on the board of Parent Possible.


Andrea Miller

Manager of Corporate Social Responsibility

Andrea is the manager of corporate social responsibility for Delta Dental of Colorado. She is responsible for team member engagement, sustainability, community board leadership development, sponsorships, and strategic relationships. Her background includes 17 years of nonprofit management, training, and fundraising. She holds a bachelor’s degree in elementary education from Illinois State University and a master’s degree in public administration from the University of North Texas.



Mirella Chavez

Program Officer, Workforce

Mirella is responsible for implementing the connections to overall health focus area, including the managing of data and analysis. Most recently, Mirella served as the bilingual spokesperson for the foundation during her role asDelta Dental of Colorado’s community benefit coordinator and tooth fairy. She has a bachelor’s of science in healthcare management from Metropolitan State University of Denver. Mirella also participates in the RoadRunners Read Book Club and is a longtime volunteer with Colorado Mission of Mercy.


Veronica Contreras de Raya

Marketing Communications Specialist

Veronica helps share how the foundation advances oral health equity and supports Delta Dental of Colorado’s Corporate Social Responsibility program. Veronica has been working with community-based organizations for over 10 years. She earned an associate’s degree in film and video technology from the Colorado Film School at the Community College of Aurora as well as a bachelor’s in technical communications from Metropolitan State University.


Liza Dubrow

Executive Assistant

Liza plays a vital role supporting the Delta Dental Foundation, Board of Directors and in the overall culture and employee engagement that are part of the Foundation and Corporate Social Responsibility. Previously, Liza served as the Chief of Staff and Philanthropic Lead at Align Impact, an impact investing consulting firm, working with families, foundations and their financial advisors to increase the effectiveness and alignment of philanthropic grants, impact investments and mission related investments.Prior to Align, Liza served as a fundraiser for The American Lung Association and The TJ Martell Foundation. Liza holds a bachelor’s degree in communications from California State University Northridge.


Mara Holiday

Senior Program Officer, Early Childhood and Prevention

Mara joined the Delta Dental of Colorado Foundation in July of 2021 as Senior Program Officer, Early Childhood and Prevention. Before joining the Foundation, Mara led global employee engagement efforts for the Western Union Foundation. Prior to that role, Mara worked as a Program Officer at the Buell Foundation managing a diverse portfolio of grantees in the early childhood space. Mara sees herself as a partner to nonprofit organizations and a champion for the good work in early childhood education—including the impact of oral health on a child’s quality of life—that is being accomplished across the state. Mara holds a BA in Arts Management from the University of San Francisco, an MA in Rhetoric and Writing Studies from San Diego State University, a Certificate in Corporate Social Responsibility and Ethics from CU Boulder, and she brings over 13 years of nonprofit and grant-making expertise to her role.  


Ciandra Jackson

Senior Marketing Communications Specialist, Foundation and CSR

Ciandra is the senior marketing and communications specialist for Delta Dental of Colorado Foundation, and Corporate Social Responsibility at Delta Dental of Colorado. She is responsible for showcasing the organization’s achievements in oral health equity and the company’s philanthropic efforts. Ciandra has 15 years’ experience in strategic communications and marketing. She worked in K-12 and higher education, community health, and public health. She also worked at NASA Johnson Space Center in Houston where she publicized the scientific discoveries of the International Space Station across the United States. Ciandra holds a bachelor’s degree in journalism from the University of Northern Colorado and a master’s degree in communications from the University of Denver.


Our Board

Kelly J. Brough, MBA

Board Chair

Kelly J. Brough, Delta Dental of Colorado Foundation board chair, is the president and CEO of the Denver Metro Chamber of Commerce. The chamber represents approximately 3,000 businesses and their 300,000 employees in Colorado. Prior to joining the chamber, Ms. Brough served as a chief of staff for Mayor John Hickenlooper and the City and County of Denver where she oversaw a general fund of $857 million. She also served as deputy chief of staff and director of the Denver Office of Accountability and Reform for the city. In that role, she implemented the city’s new 3-1-1 customer service system and created an organizational culture that embraced performance management and continuous improvement.


Luella Chavez D’Angelo

Governance Chair

Luella Chavez D’Angelo is the Vice President, Marketing and Communications at Centura Health. Prior to this position, she was the Vice Chancellor, Enterprise Development at the University of Colorado, Denver. She has also worked at Western Union and Western Union Foundation/First Data Foundation. She holds an Master of Business Administration in Finance and a Bachelor of Business Administration in Marketing from the University of New Mexico. She is a board member of many organizations including Bonfils Blood Center Foundation, Mile High United Way and the Denver Metro Chamber of Commerce Board.


Helen Drexler

President and CEO of DDCO

Helen Drexler currently serves as president and CEO of Delta Dental of Colorado. Prior to this position, Helen served as regional vice president of Anthem Blue Cross and Blue Shield, where she worked in a variety of leadership roles for 30 years. She received her bachelor’s degree in sociology from the University of New Mexico and certification by Senn Delaney as a cultural transformation facilitator. Helen recently served on the Women’s Leadership Council for United Way of Greater Atlanta. She also served as chair of the board of directors of Florence Crittenton Services.


Scott Hamilton, DDS

Dr. Scott Hamilton is a pediatric dentist at Denver Health. He graduated from the University of Nebraska Medical Center with his Doctor of Dental Science degree in 1999 and completed a residency in Pediatric Dentistry. While living in Nebraska, he owned a pediatric dental practice for many years and taught as an Assistant Professor at the University of Nebraska College of Dentistry.


Julie Keegan

Julie Keegan spent over 30 years as an executive in the hospital industry in the Denver area. She retired from her position as CFO of Craig Hospital in 2019 after 13 years of service. Ms. Keegan is a graduate of the University of Nebraska-Lincoln with a BS in Accounting.  She held a CPA license until retirement. She served on the Board of Directors of the Colorado Chapter of the Healthcare Financial Management Association. 


Kim Kretsch, DDS

Dr. Kim Kretsch is a founding partner in Colorado Dentistry for Children in Brush, Colorado. She holds a Bachelor of Science degree from the University of Iowa with a certificate in dental hygiene, a DDS degree from the University of Colorado, a certificate in pediatric dentistry from Children’s Hospital of Wisconsin, and a Master’s in Business Administration from Regis University. She is a member of the American Dental Association, Colorado Dental Association and a past president of the Boulder Broomfield County Dental Society. She is also a member of the American Academy of Pediatric Dentistry and well as a diplomate of American Board of Pediatric Dentistry.


Lydia Prado, PhD

Lydia Prado is the Executive Director at Lifespan Local Barton Institute for Community Action. Dr. Prado, a psychologist who earned her doctorate from the University of Denver in 1994, has been with the Mental Health Center of Denver for 17 years and is currently Vice President of Strategic Community Partnerships. She is the visionary behind the Dahlia Campus for Health and Well-being, an international award-winning community center providing an array of mental health services co-located with an urban farm, a preschool, a children’s dental clinic, and extensive space for community gatherings.


Tamanna Tiwari, MPH, MDS, BDS

Dr. Tamanna Tiwari is a dentist and an assistant professor in the Department of Community Dentistry and Population Health and Associate Director, Center for Oral Disease Prevention and Population Health Research at the School of Dental Medicine at the University of Colorado. She obtained a master degree in public health in global health leadership from New York University. Dr. Tiwari is funded by the National Institute of Dental and Craniofacial Research and the Colorado Clinical and Translational Science Institute to conduct research to reduce oral health inequalities in children in Colorado. She received the Colgate Award for Research Excellence in 2018. She is a member of American (International) Association for Dental Research and American Public Health Association and is an elected officer at both the organizations. She has published over 30 peer-reviewed publications and has presented her research at several national and international conferences.


Andrea Young

Andrea is the Senior Vice President of Technology with Denver-based Aimco Apartment Homes. Prior, Andrea was President and CEO of the Colorado Technology Association, where she led all strategic operations geared toward advancing the technology industry across the state. Andrea has also held high-level CIO and CTO roles with companies such as BI, Incorporated, and Janus Capital Group, and has repeatedly been on the forefront of innovation within the technology sector. Andrea holds a master’s degree in business administration with the University of Denver as well as bachelor of science in business and information systems. A Colorado native, Andrea has been active in several non-profit, community-based and industry-affairs organizations to advance Colorado’s competitiveness, including introducing computer science education standards with the Colorado Department of Education for the first time in 2018 and launching the first Colorado Smart Cities Symposium and Open Lab.