Cornerstone’s Operations Team

Cornerstone’s Operations Team works each day to ensure that our clients are safe, comfortable, and fully capable of focusing on their treatment. Each member of our operations team is professional and caring, always putting our clients’ needs first.

Sead Hasic

Director of Business Development and Admissions

Sead began his recovery journey in August of 2014. Shortly after, he started his career in the recovery field. Sead became a resident manager at a non-profit organization in the valley that helps hundreds of men and women, daily. Sead then took his experience to Calvary Healing Center where he continued his mission of helping others.

Cole Armstrong

Admissions Specialist

Cole was born and raised in sunny south Florida only to start his life of recovery here in Scottsdale back in November 2018. Since then, he has traveled this road of helping others find recovery and began working at Cornerstone in January of 2020. As an alumni of the program, he hopes to share and give back the love and understanding of life that Cornerstone once gave him.

Celia Cacciotti

DUI Specialist

Originally from Toronto, Canada, Celia moved to the Scottsdale area in 1994 with her family to escape the cold weather. Celia has been working in the medical field for the past 8 years.  Celia’s health philosophy is “Balance is key to feeling better and living better – We should honor and tend to our mental, physical and emotional/spiritual well being.” When she isn’t helping clients or being the glue that helps keep Cornerstone together, she enjoys spending time with family and friends, cooking, visiting local farmer’s markets, and traveling.

Tom Higgins


Tom grew up in Central New York but traded snow for sunshine and moved to Scottsdale, AZ in 2017. After finding Cornerstone in April of 2019 and beginning a life of recovery for himself, Tom has worked hard to help others discover their own pathway to recovery. Starting in October of 2020, Tom began working as the Navigator at Cornerstone guiding clients through the formative first year of sobriety.

Max Perez

Case Manager

Max has worked in the behavioral health/recovery field for 4 years and has worked with a community-based outreach team to provide services to clients who suffered from addiction as well as being chronically homeless. Max has a passion for helping those suffering from drug and alcoholic addiction and believes everyone deserves to live a life free from addiction.

Dane Perikly


Growing up in Phoenix, Az, Dane began his journey of recovery in 2016 and moved into the treatment field in late 2017 working as a call representative. Since then, he has worked in various roles at an outpatient level, both in client care and business before landing in operations with Cornerstone in 2020. With his belief that peace comes from within, he hopes to use his skillset to provide a space that is structured and calm to give those who are struggling with substance abuse the ability to grow and learn.

Eric Yunker


Eric grew up in Chicago and moved to Tempe in December of 2017 to begin his education at ASU.  He soon after began his career with Cornerstone in operations as a House Manager.

Mikey Candella


Mikey was born and raised in Phoenix, AZ. Mikey found a solution to drugs and Alcohol in April 2018. He has worked in the recovery field for most of his sobriety. Mikey is a certified yoga instructor and uses that as an outlet, helping individuals to find community, spirituality, and a healthy practice.

Dayna Kwon


Dayna thought she was coming to Arizona for just 30 days of treatment in April of 2018 and has built her new life here. Dayna has been working in the recovery field since 2019 providing sober living and aftercare for those struggling with substance use disorders. She came on board with Cornerstone Healing Center in 2021 hoping to learn and grow with us, while being a part of making a difference in people’s lives. 

Torry Yonker

Fitness Professional

Torry is a NASM certified personal trainer with 3 years experience as a fitness professional. He was born and raised in Phoenix Arizona and began his recovery journey at Cornerstone in August 2019. He also owns and operates a meal preparation company to help his client make better nutritional decisions. In his own words Torry got into the fitness industry because: “ Fitness has been instrumental in my life. It’s helped me find confidence, discipline, and a healthy outlet. All of which I lacked in my addiction. I want other to have that experience. I want to help people be the best version of themselves.”

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Cornerstone Healing Center

16444 N 91st St, Building H

Scottsdale AZ 85260