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Our Trainers

Our Experts:

It’s about “getting fit and staying fit” and we mean it! Our team of Professional Certified Personal Trainers will work really hard so you can achieve your personal fitness and nutrition goals whatever they may be!

Mary Schaefer Driscoll

Owner, Certified Personal Trainer, and Nutrition Coach

Mary is a 2000 graduate of Hershey High School. She graduated from Penn State University in 2004, where she played Field Hockey and studied Kinesiology.  Mary has been a certified personal trainer since 2004, and has helped thousands of individuals meet their fitness goals!  She is also an NCAA and International Field Hockey Umpire.  She opened Mary’s Health and Fitness in 2015, and enjoys training individuals at all fitness levels!

Andrea Wealand

MH&F Fitness Director, Certified Personal Trainer

Andrea is a certified Personal Trainer through The American Council of Exercise (ACE). She also holds additional certifications including; TRX, Pre/Post Natal, Functional Training, HIIT Training, and Stretching. Andrea’s mission is to educate and motivate people to help them on their fitness journeys, with the hope of encouraging as many people as possible to experience the amazing benefits of exercise.

Lori Myers

Certified Personal Trainer, Certified Sports Nutritionist, Certified Strength and Conditioning Specialist, and Certified Post Rehabilitation Specialist

Lori Myers graduated from Conestoga Valley High School where she played volleyball and began her enthusiasm for working out.  She played Junior Olympic Volleyball and has continued to play on leagues and compete in tournaments until 2017 in order to focus more on her husband and six children. She holds certifications through AFPA as a Personal Trainer, Sports Nutritionist, Strength and Conditioning Specialist and Post Rehabilitation Specialist. Lori began working as a personal trainer in 2013 and enjoys being an encouragement and blessing to others.  She is enthusiastic about helping others achieve their goals and motivating them to live healthier and whole lives.

Mike Wagner

Certified Personal Trainer, Certified Strength & Conditioning Specialist

Mike is Certified Strength and Conditioning Specialist through the National Strength and Conditioning Association. He has a Bachelor’s Degree in Exercise Science from Bloomsburg University and Master’s Degree in Exercise Science with a concentration in Performance Enhancement and Injury Prevention from California University of Pennsylvania. Mike also was a college athlete playing 4 seasons at Bloomsburg University. He has been working with athletes in speed, strength, and power sports since 2009. He has worked with athletes ranging from all different age groups. This includes middle school, high school, college, professional, and Olympic athletes. While he continues working with amateur athletes, since 2016 he has been employed as a Strength and Conditioning Coach for the Washington Capitals and Hershey Bears Organizations.

Katie Kosovac

Certified Personal Trainer

Katie is a Certified Personal Trainer through the American Council of Exercise (ACE). She was a two-sport collegiate athlete playing both soccer and basketball for Penn State Harrisburg where she earned a B.S. in Kinesiology. In her free time, she enjoys spending time with my family and friends.

Lynda Steller

Certified Personal Trainer

Lynda is a Certified Personal Trainer through the American Council of Exercise (ACE). She has a Masters’s Degree in Special Education from Teachers College Columbia University, and has been working in the education field for over 25 years. Lynda found her passion for fitness through her love of sports. She aims to have a positive impact on the lives of those she works with, and help them achieve behaviors that lead to lifelong success in fitness.

Ryan Oden

Certified Personal Trainer

Ryan Oden is currently enrolled in the Physical Therapy Doctorate program at Lebanon Valley College. He is a Certified Personal Trainer through the National Strength and Conditioning Association (NSCA). He enjoys working with all types of clients and helping clients meet their goals.

Ryan Bibeau


Ryan Bibeau is currently enrolled at Lebanon Valley College in the Physical Therapy Doctorate program. He has a Bachelor’s in Exercise Science from LVC and has a Strength and Conditioning Specialist Certification with the National Strength and Conditioning Association (NSCA).

Chase Herrington

Certified Personal Trainer

Chase is a Lebanon Valley College graduate with a Bachelor of Science in Exercise Science. He is also a Certified Personal Trainer through the National Academy of Sports Medicine (NASM). In the future, Chase aims to pursue a Master’s degree in Sports Performance. In Chase’s free time he enjoys going to the gym, playing video games, or playing any sport, especially Volleyball and Basketball.

Cassiah Ray

Cassiah Ray graduated from Lebanon Valley College with her Bachelor of Science in Exercise Science. In college, she played basketball, and through her own experiences as a collegiate athlete, has developed a passion for injury prevention and injury rehabilitation.

Brittany Hathaway

Certified Strength & Conditioning Specialist

Brittany is a Certified Strength and Conditioning Specialist through the National Strength and Conditioning Association. She has a bachelor’s degree in Exercise Science and is currently in her final year of graduate school to obtain her Doctorate in Physical Therapy at Lebanon Valley College. Brittany has played both lacrosse and soccer at the division III collegiate level and was a captain on the LVC women’s lacrosse team her junior and senior year. She enjoys motivating clients with positivity and encouragement while pushing them to achieve their goals.

Matt Yansick

Matt is originally from New Jersey and found a love for resistance training and fitness through high school sports.  He recently graduated with his Bachelor of Science in Exercise Science from Lebanon Valley College and is finishing his Doctor of Physical Therapy degree at LVC. He is excited to work with clients to help them crush their individual goals and maximize their health!


Mary’s Health and Fitness is a training facility for all types of clients to meet their goals! We train both in-studio in Hershey and online!

Working hours

Monday: 5am-8pm
Tuesday: 5am-8pm
Wednesday: 5am-8pm
Thursday: 5am-8pm
Friday: 5am-5pm
Saturday: 6am-12pm
Sunday: 8am-12pm

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