Meet the cor team

Dr. John Mullen, DPT is a World-renowned expert and speaker in sports training and rehabilitation. He received his Doctorate in Physical Therapy at USC, as well as the Josette Antonelli Division Service Scholarship, Order of the Golden Cane, and the Order of Areté. At USC, he also performed research on strength training and rehabilitation. Dr. John has worked with over 30 Olympic and Professional athletes, helping them earn over 15 Olympic medals. He was also the editor of the book Swimming Science and was named one of the Best 3 Physical Therapists in Santa Clara in 2018, 2019, and 2020.
His dedication to research and individualization spurred him to open COR in 2011. Since 2011, Dr. John has been featured in Gizmodo, Motherboard, Stack Magazine, and much more.
He has worked with numerous colleges and teams regarding rehab and performance. He has also done sports performance consulting for team China, the Philippines, Trinidad and Tobago and more.
Before his Doctoral program, Dr. John swam on an athletic scholarship at Purdue University. At Purdue, Dr. John was an Academic Honorable Mention All-American and was awarded the Red Mackey Award and R. O. Papenguh Award. He also won the Purdue Undergraduate business plan and elevator pitch competition, as well as 1st prize with the Indiana Soy Bean Alliance.
Dr. John was born in Centerville, Ohio and was a 24-time high school All-American Swimmer. Dr. John is still a swimmer and is a former Masters Swimming World and Pacific Swimming Record.




Greg Gimenez grew up in California and has been active his entire life. He grew up playing multiple sports, focusing on football and wrestling. He then took up many other activities, focusing on powerlifting and outrigger canoeing.
While Greg was training powerlifters and other athletes, he discovered the importance of recovery and massage. At this time, he dove into massage therapy, receiving Honors at the National Holistic Institute Advanced Neuromuscular Therapy program. With his massage practice, Greg uses a variety of techniques, which include, but aren’t limited to deep tissue massage, trigger point, sports massage, pre/post-event massage, Shiatsu, Lymphatic drainage, and many others.
Greg has worked with numerous elite strength and power athletes, MMA competitors, Canoers/Kayakers, SUP paddlers, swimmers, and many more!


At the age of 10, Priscilla was watching soccer icon, Brandi Chastain, on TV. This motivating figure inspired Priscilla to begin her fitness journey. She enrolled in her local soccer program, but after several seasons of playing, she sustained a knee injury that kept her from playing contact sports. She had to shift gears, unable to participate in fitness the way she had known up to this point. At this time, she uncovered weight lifting and through weight lifting, she gained an understanding that all muscle groups whether big or small were crucial in her road to recovery. After making this discovery, Priscilla earned her certification as a personal trainer to help others overcome their fear of reinjuring themselves as well as building their confidence around fitness. She is a firm believer that everyone should have access to the knowledge and experts that will help them obtain their fitness goals. This passion led her to obtain a business degree through San Jose State University as well as continuously finding avenues to gain more knowledge about fitness mechanics as well as other ways of working muscles to make exercising more fun. Priscilla helps her clients reach their fitness and health goals as well as builds their confidence in what their bodies are capable of.


Ebony grew up in the Bay Area with her mother and sisters. Alongside her family, she spent her time singing, dancing, skating, baking, and performing at fairs. Ebony enjoys focusing on her education and spending time with her nieces and nephews. She studied at Heald College in Computer Business Administration.
While Ebony became more involved with the medical field, she discovered the beauty of massage and its benefits. As she wanted to do more, she dove into the massage therapy course, at the National Holistic Institute in San Jose. With her massage practice, she continues to work towards learning more and pursuing her certification in becoming a Doula.
Ebony has worked in many fields, from sales to marketing, nursing homes, and now finding a home here at COR as our Billing & Office Manager. She works to help others understand their policies and feel comfortable with the knowledge of their financial options to work towards the recovery they need and deserve.




Dr. Donell Babino, DPT is a graduate of Georgia State University and is fairly new to California. He was inspired to become a physical therapist from being physically active throughout his childhood and suffering minor injuries from sports such as American football, wrestling and rugby. At the time he did not know there was a profession that assists in rehabilitation but through his time obtaining a B.S. Exercise Science degree from Georgia State University he soon learned what he wanted to pursue. Being a naturally compassionate and commutative individual he pursued a profession in physical therapy and is currently specializing in sports rehabilitation.

