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GEM Team

Theresa Cordova

Andrea Racanelli

Theresa Cordova

  Theresa Cordova is a driven professional with over 20 years of experience in the fitness industry, serving as a leader, educator, and advocate for personal training and exercise science. She is the Founder and Owner of GEM Fitness, where she pioneered the Guided Exercise Membership program, providing unparalleled support and expert exer

  Theresa Cordova is a driven professional with over 20 years of experience in the fitness industry, serving as a leader, educator, and advocate for personal training and exercise science. She is the Founder and Owner of GEM Fitness, where she pioneered the Guided Exercise Membership program, providing unparalleled support and expert exercise prescriptions tailored to individual needs. In 2006, Theresa started Changes for Life, offering integrated health and wellness services, from personal training and coaching to community-based group fitness and education. In 2016, she founded Fit for Life, a nonprofit dedicated to promoting lifelong wellness through engaging physical activities for all ages and abilities. Her background includes a pivotal role as Partner and  Director of Certification at the Academy of Applied Personal Training Education (AAPTE), where she helped achieve and maintain the national accreditation for personal trainers. Her expertise in resistance training biomechanics, exercise physiology, and movement education drives her mission to empower individuals to lead a healthier more active life through movement.  

Dylan Owens

Andrea Racanelli

Theresa Cordova

 Dylan has been a certified personal trainer for 11 years. After being an athlete in his youth, he decided to pursue a career in health and fitness. He has trained clients ranging from the ages of 13-80 and ran group classes ranging from 3-24 people. Whether it’s losing weight, gaining muscle, or maintaining a healthy lifestyle Dylan is a

 Dylan has been a certified personal trainer for 11 years. After being an athlete in his youth, he decided to pursue a career in health and fitness. He has trained clients ranging from the ages of 13-80 and ran group classes ranging from 3-24 people. Whether it’s losing weight, gaining muscle, or maintaining a healthy lifestyle Dylan is able to help all clients. He has a certification as a resistance training specialist and continues to increase his education in order to best serve his clients. 

Andrea Racanelli

Andrea Racanelli

Andrea Racanelli

 Andrea, a long-time lover of fitness, is a Master Personal Trainer, Group Exercise Instructor, and Small Group Training Coach on Long Island, New York.  Andrea strives to find creative strategies to encourage those with orthopedic challenges (like herself) to reach the best physical, mental, and emotional versions of themselves. Her cert

 Andrea, a long-time lover of fitness, is a Master Personal Trainer, Group Exercise Instructor, and Small Group Training Coach on Long Island, New York.  Andrea strives to find creative strategies to encourage those with orthopedic challenges (like herself) to reach the best physical, mental, and emotional versions of themselves. Her certifications include CPT, NASM; TRX, Suspension Training and Rip Training; CrossCore, Suspension Training; and Bell Mechanics, Level 1 Kettlebell Training. Her specializations include Cardio Dance and Foam Rolling. She is blessed to share a life with her husband, Nick, and their two spectacular daughters, Gianna & Gioia. 

Dennis Rios

Andrea Racanelli

Andrea Racanelli

Dennis Rios is a certified personal trainer. He's been a trainer for 12 years and has always been into health and fitness since his youth. He's certifications include AAPTE and NASM. Dennis is passionate about fitness as he dedicates his time to not only training and challenging others, but also challenging himself as he loves to play spo

Dennis Rios is a certified personal trainer. He's been a trainer for 12 years and has always been into health and fitness since his youth. He's certifications include AAPTE and NASM. Dennis is passionate about fitness as he dedicates his time to not only training and challenging others, but also challenging himself as he loves to play sports and practice martial arts. He has experience training those with various backrounds and his major goal in life is to help people from all walks of life to meet their fitness goals and improve their quality of life. Dennis is constantly looking to learn and expand his knowledge in order to serve every client and their individual needs.

Eileen Golon

Eileen Golon

Eileen Golon

 Eileen Golon CPT, RYT200

 Eileen Golon is a Licensed Master Social Worker with Bachelor's and Master's Degrees in Social Welfare from Adelphi University.  Practicing Mindfulness-Based Stress Reduction since receiving a MBSR certification, she is a certified Yoga instructor, with additional certifications in restorative yoga, children’s yo

 Eileen Golon CPT, RYT200

 Eileen Golon is a Licensed Master Social Worker with Bachelor's and Master's Degrees in Social Welfare from Adelphi University.  Practicing Mindfulness-Based Stress Reduction since receiving a MBSR certification, she is a certified Yoga instructor, with additional certifications in restorative yoga, children’s yoga and yoga for special needs, and a NASM CPT. She asserts moving the body ‘s positive impact on overall health, and well-being.  Eileen’s work infuses Mindful Meditation, movement, relaxation, and introspection. 

Katie Mucha

Eileen Golon

Eileen Golon

Katie works with clients of all ages with varying abilities.  Katie is passionate about helping others to feel the best they can in everyday life.

Certified Personal Trainer and Group Exercise Instructor specializing in Small Group Trainings, Cycling, HIIT and more.

BBA, Pace University

Certifications:

Certified Personal Trainer, Academy of A

Katie works with clients of all ages with varying abilities.  Katie is passionate about helping others to feel the best they can in everyday life.

Certified Personal Trainer and Group Exercise Instructor specializing in Small Group Trainings, Cycling, HIIT and more.

BBA, Pace University

Certifications:

Certified Personal Trainer, Academy of Applied Personal Training Education (AAPTE)

AFAA Group Exercise Instructor Certified

Schwinn & FiTour Indoor Cycling Certified 

Moving for Better Balance Certified

Les Mills BodyPump Certified

MetaFit Bodyweight HIIT Training

Precor Queenax Small Group Trainin

TRX Training

Aqua Boga Training

Small Group Facilitation

Diabetes Prevention

Rob Mulle

Eileen Golon

Rob Mulle

 Rob is a certified personal trainer and nutritionist that has a background in resistance training with an emphasis on overall health and longevity.  20 years of experience as a youth and adolescent sports coach and martial arts instructor, Rob enjoys sharing in the progress and enthusiasm of others who love to train. 

Jaclyn DeRosa

Michaela VanHorne

Michaela VanHorne

 Jaclyn is a 200 Hour Certified Yoga Teacher. She has been teaching yoga for almost three years. Jaclyn is an energetic healer who teaches others how to raise their vibration. She is currently working on obtaining her Masters to be a Licensed Mental Health Counselor. Being in nature, grounding, exercising and hiking are some of her favori

 Jaclyn is a 200 Hour Certified Yoga Teacher. She has been teaching yoga for almost three years. Jaclyn is an energetic healer who teaches others how to raise their vibration. She is currently working on obtaining her Masters to be a Licensed Mental Health Counselor. Being in nature, grounding, exercising and hiking are some of her favorite pastimes. Jaclyn is a lover of plants, flowers, animals, crystals & all things of the Earth. 

Michaela VanHorne

Michaela VanHorne

Michaela VanHorne

  Michaela is a certified Pilates Instructor specializing in Mat Pilates, Reformer Pilates as well as pre/postnatal Pilates and rehabilitation. With her Master's degree in Law and Legal Studies, her journey has been anything but conventional. Years of studying together with a lot of time spent in an office setting, confirmed the importanc

  Michaela is a certified Pilates Instructor specializing in Mat Pilates, Reformer Pilates as well as pre/postnatal Pilates and rehabilitation. With her Master's degree in Law and Legal Studies, her journey has been anything but conventional. Years of studying together with a lot of time spent in an office setting, confirmed the importance of movement and mindful wellness for her. Growing up as a competitive dancer, she developed a deep appreciation for strength, flexibility and the power of intentional movement - leading her to Yoga and Pilates and health and fitness goals in general. When retiring from dancing, she continued to fulfill her passion as a dance and fitness teacher, especially for younger children.  She is also a Gigi's Fit Program certified and enjoys working with a variety of clients ranging from small children all the way to senior years. Her goal is to make movement accessible, empowering, and transformative for every individual, whether you are looking to improve posture, strengthen your muscles, recover from an injury or just simply feel better in your body 

Patrice Domozych

Michaela VanHorne

Patrice Domozych

For over three decades, I've had the immense pleasure of guiding people on their health and

fitness journeys as a certified group fitness instructor. My passion isn't just about the workouts;

it's about connecting with each of you, building a supportive community, and celebrating every

small victory along the way.

As a lifelong educator, with

For over three decades, I've had the immense pleasure of guiding people on their health and

fitness journeys as a certified group fitness instructor. My passion isn't just about the workouts;

it's about connecting with each of you, building a supportive community, and celebrating every

small victory along the way.

As a lifelong educator, with a Master's degree in Reading and my certifications with the

American Council on Exercise (ACE), I truly believe in an educational approach to fitness.

Whether we're on a spin bike, in step class, practicing Pilates, or building strength with free

weights, my goal is to make sure you understand the 'why' behind the movement.

I love designing fun classes that are both effective and engaging, and I'm dedicated to providing

modifications so that everyone, no matter their age or fitness level, feels challenged and

successful.

When I'm not in the studio, I’m enjoying life with my family, my husband Rich and three sons,

Tom, Mike and James. We love being active together and maintaining a healthy lifestyle, from

skiing in the mountains, golfing, boating and fishing, to jumping into a fun game of pickleball. I

have a passion for my work with Lauren’s First and Goal Foundation, a family founded 501c3,

dedicated to funding pediatric brain tumor research and support and teaching preservice teachers

at St. Joseph’s University.

My hope is to create a space where you feel motivated, supported, and confident. I can't wait to

see you in class!

Vicky McGuire

Michaela VanHorne

Patrice Domozych

 Experience in various forms of dance instruction I developed a passion for exercise and movement through music. I enjoy the opportunity to be a positive influence on the lives of people who share the desire to improve themselves physically and mentally in this format. Certifications include: Zumba, Zumba Gold, and Zumba Kids.  

Jen Herbst

Lindsay Kandel

 Jen is an ACE-certified Group Fitness Instructor with a passion for teaching Barre Fusion, Strength Training, and Step Aerobics. She especially enjoys working with the senior population. Her certifications include Step Aerobics, Silver Sneakers, Les Mills Body Pump, and CardioKickboxing. By day, Jen is an English teacher at Bay Shore High School.  

Lindsay Kandel

Lindsay Kandel

Lindsey is a Certified Personal Trainer as well as a Pilates and Barre Instructor. Her passion is to help others build strength, flexibility and confidence through mindful movement. She focuses on core stability, proper alignment, and the power of breath. Her goal is for you to leave each session feeling strong, centered and empowered. Ev

Lindsey is a Certified Personal Trainer as well as a Pilates and Barre Instructor. Her passion is to help others build strength, flexibility and confidence through mindful movement. She focuses on core stability, proper alignment, and the power of breath. Her goal is for you to leave each session feeling strong, centered and empowered. Even outside of the gym she continues to stay active. In the summer, you can find her playing volleyball on the beach, or skiing through the mountains in the winter.  

Fran Klingle

Fran Klingle

  "BRB, too busy leading epic workouts—bio update in progress!" 

Siena Wagner

Fran Klingle

 

Siena earned her Bachelor of Science in Athletic Training from East Stroudsburg University and has a strong background in exercise, movement, and individualized fitness.

She spent three years working as an Exercise Physiologist in a physical therapy setting, gaining valuable experience helping individuals improve strength, mobility, balan

 

Siena earned her Bachelor of Science in Athletic Training from East Stroudsburg University and has a strong background in exercise, movement, and individualized fitness.

She spent three years working as an Exercise Physiologist in a physical therapy setting, gaining valuable experience helping individuals improve strength, mobility, balance, and overall function. Since 2024, Siena has worked as a Personal Trainer with Main Line Health and GEM Fitness, creating personalized exercise programs based on each client’s abilities, needs, and goals.

Siena is passionate about helping people feel stronger and more confident in their movement. Her approach focuses on making exercise safe, effective,approachable, and sustainable while helping clients build strength, improve balance, and feel better in everyday life.

Massage Therapy

Vincent J. Glasser, M.S., LMT

Vince Glasser is a New York State-licensed massage therapist specializing in

Myofascial Release (MFR) as taught by John F. Barnes, PT. Vince graduated from

the accelerated program at the holistic Finger Lakes School of Massage (FLSM) in Ithaca, New York and obtained his massage license in 2009. Shortly after

graduating FLSM, he discovered John F. Barnes’s MFR program and took all 16 of his training seminars. The late Mr. Barnes was a world-renowned lecturer, author and therapist who trained thousands of therapists in his unique MFR approach. Vince is also a full-time certified teacher of the Transcendental Meditation® (TM) technique taught by Maharishi Mahesh Yogi and a certified Maharishi Ayurveda Practitioner and educator. Vince started practicing TM in 1993 and his life improved dramatically within a short period of time. Wanting to share this beautiful knowledge of how to unfold more of one’s full potential and get more enjoyment out of life, he became a TM teacher in 2000 and has now taught TM to several hundred people and is still teaching. In June 2018 Vince earned his Master of Science in Maharishi Ayurveda and Integrative Medicine from Maharishi International University (MIU) and was a teacher’s assistant (TA) for the program for 2 ½ years following his graduation. “Ayurveda” is a term from the ancient Sanskrit language that literally means,

Science of Life and is a totally comprehensive and holistic system of health care

from the same ancient tradition of knowledge where TM comes from, the Vedic

tradition of India. Ayurveda is a highly personalized approach to health care that is preventive because, unlike modern medicine, it can detect imbalances at the earliest stages and has the knowledge of how to restore balance by making simple adjustments to diet and lifestyle that can be helped by herbal remedies and multidisciplinary holistic modalities. As a practitioner and educator Vince gives talks and workshops on Ayurveda and has been interviewed on blog talk radio programs. Vince has always been intuitive and sensitive to energy and recently discovered that he has the ability to read a client’s energy field and locate issues in the body, which initiates a healing response and allows for a more focused and effective treatment session. To deepen his natural intuitive ability in reading the energy field of clients and treating them, Vince just enrolled in a course in Maharishi Marma Therapy, a consciousness-based specialized branch of Ayurveda, that uses specific gentle touch on marma points (sensitive anatomical convergence “hidden”points) that stimulates the flow of life energy (prana), relieves physical pain and

muscle tension, balances emotions and calms the nervous system, and supports detoxification, immunity and overall vitality. Vince’s mission is to share and use his knowledge of these three natural and holistic tried and true health care modalities (MFR, TM, and Ayurveda) to restore balance in the mind and body so his clients can realize more of their full potential and enjoy life more. In his previous career, that spanned almost 25 years, Vince was a senior

scientist/hydrogeologist for local environmental consulting firms where he

managed a variety of projects involving soil and groundwater contamination and remediation as well as developing groundwater supply. He earned his Bachelor’s degree in Environmental Studies from Binghamton University in 1980 and also did post graduate work in courses relating to groundwater study.

For 13 years Vince was chairman of a local chapter of EarthSave International and ran monthly vegetarian/vegan potluck dinners, which included an educational program that featured a wide variety of speakers to educate members and guests about farming, food, nutrition and environmental issues.

For recreation, Vince enjoys outdoor activities such as surfing, swimming, hiking, biking, photography and bird watching. While in the comfort of his home he likes to watch old movies, play his guitar, read and do crossword puzzles.

Dr. Evangelos Zahos, PT, DPT, OCS, NASM-CPT Board-Certified Orthopedic Clinical Specialist | Performance Coach | Former NCAA Division II Football Player

Dr. Evangelos Zahos is a Doctor of Physical Therapy, Board-Certified Orthopedic Clinical Specialist, and Certified Personal Trainer with extensive experience in orthopedic rehabilitation, sports performance, biomechanics, and strength and conditioning. A former NCAA Division II collegiate football player and wide receiver at LIU Post (2013–2017), Dr. Zahos brings a unique perspective to athletic development, combining firsthand experience in competitive sports with advanced clinical expertise in human movement, injury rehabilitation, and performance optimization. Currently serving as a Physical Therapy Director and pursuing advanced fellowship training in

orthopedic manual physical therapy, Dr. Zahos specializes in identifying movement dysfunctions, improving neuromuscular control, restoring mobility, and developing the strength and physical capacity necessary for optimal athletic performance. His approach emphasizes the relationship between mobility, stability, motor control, and force production. Through comprehensive movement assessments and evidence-based training

strategies, he helps athletes improve movement efficiency, address physical limitations, and build resilience against the repetitive demands of their sport.

In working with competitive swimmers, Dr. Zahos focuses on shoulder health, scapular control, thoracic mobility, trunk and pelvic stability, and coordinated movement throughout the kinetic chain. By identifying limitations in mobility, strength, and movement quality, his goal is to help swimmers maximize performance, improve movement efficiency, and reduce modifiable injury

risk. His philosophy is centered on developing resilient athletes through better movement, greater strength, and improved physical capacity bridging the gap between rehabilitation and high-level athletic performance.

Operations and Client Success

Dan Foti

Keith R. Roach

Keith R. Roach

  As the Director of Member Services and client success at GEM Fitness, I’m truly passionate about creating an environment where every member feels welcomed, supported, and valued from the moment they walk through our doors.

Professionally, I serve as a Controller for a labor union, where I oversee financial operations and focus on integri

  As the Director of Member Services and client success at GEM Fitness, I’m truly passionate about creating an environment where every member feels welcomed, supported, and valued from the moment they walk through our doors.

Professionally, I serve as a Controller for a labor union, where I oversee financial operations and focus on integrity, accountability, and strong leadership. That background has helped shape my commitment to structure, organization, and delivering a high-level experience for everyone I work with.

But what means the most to me is what really drives my role here—is my personal journey.

I’ve struggled with my weight for most of my life. At one point, I was 360 pounds, and I know firsthand how difficult that battle can be—physically, mentally, and emotionally. In 2010, I made a decision that changed everything: I was going to fight for my health. Since then, fitness has become more than just a goal—it’s become a lifestyle, a daily commitment, and a lifelong journey.

I understand that this path isn’t always easy. It takes consistency, resilience, and, most importantly, support. That’s why I strongly believe in finding your people, your community, the individuals who motivate you, support you, and help you keep going even on tough days.

At GEM Fitness, my goal is to make sure you feel that support. I want you to feel comfortable coming to me with any questions, concerns, or even just a conversation about your journey. You’re never alone in this, and I’m here to help in any way I can.

To me, this is more than a gym, it’s a place where we grow together, support one another, and become the best versions of ourselves.

Keith R. Roach

Keith R. Roach

Keith R. Roach

 Director, Business Operations 


 Keith grew up in Bohemia, graduated Connetquot H.S. and holds a BBA from Dowling College graduating with Dean’s Honors.  He has worked in various business operations management positions in his 40-year career.  Most recently 25 years in various management roles with a pharmaceutical company. 

Keith spent 15 

 Director, Business Operations 


 Keith grew up in Bohemia, graduated Connetquot H.S. and holds a BBA from Dowling College graduating with Dean’s Honors.  He has worked in various business operations management positions in his 40-year career.  Most recently 25 years in various management roles with a pharmaceutical company. 

Keith spent 15 years as a primary caregiver for his parents, having them live with him in their latter years until their passings in 2020 and 2022.

Keith joined GEM Fitness as a client in early 2025 with the goal of improving his overall health, appearance and strength.  After being a client for approximately ten months and getting to know Theresa Cordova and her mission and genuine desire to help improve people’s quality of life, Keith joined the team on a part-time basis assisting with general business operation tasks.

In his spare time, Keith enjoys the beach, concerts, gardening, movies and travel. 

Supportive Team

Kasey

Tara Bodkin

Tara Bodkin

Kasey, a graduate student from Connetquot High School who will be playing soccer this upcoming year for Johnson & Wales. She is an all honors and AP student who has maintained a 4.0 GPA all throughout high school while playing for her high school varsity team and a high-level travel soccer team, LGN Stony Brook Rush. She is also in the ho

Kasey, a graduate student from Connetquot High School who will be playing soccer this upcoming year for Johnson & Wales. She is an all honors and AP student who has maintained a 4.0 GPA all throughout high school while playing for her high school varsity team and a high-level travel soccer team, LGN Stony Brook Rush. She is also in the honors program for her college.  Kasey is a motivated worker who works the front desk at GEM Fitness. On top of playing soccer for Johnson & Wales, she wants to study fashion merchandising and hopes to pursue a fashion marketing career in the future.

Tara Bodkin

Tara Bodkin

Tara Bodkin

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