About the Team

Dr. Gross and his staff, a.k.a The Gross Team, would like to welcome you and tell you more about the team and what to expect while treating with them for your injury or ailment.

The Gross Team is a division of The Orthopedic Center of St. Louis. The Orthopedic Center of St. Louis consists of nine specialized physicians working under the same roof.   Each physician has a team and each team may not necessarily have the same policies or hours. But they all have the same goal, which is getting patients back to work, activities or life.


Lyndon B. Gross, MD, PhD

Undergraduate: Dr. Gross earned his BA at Cornell University, Ithaca, New York. While at Cornell he played football all four years and was awarded the MVP in 1986.

Post Graduate Training: Dr. Gross continued his education at State University of New York, Brooklyn, New York where he earned his medical degree and was elected a member of the Alpha Omega Alpha Honor Medical Society and Graduated Cum Laude Class of 1993. In addition he earned his Ph.D. in Molecular Biology. During this time Dr. Gross began playing rugby for the Downstate Rugby Football Club, he went on to play with the Seven’s Rugby Select Side Rugby Team in Hong Kong and in several National Championships.

Orthopedic Residency: Dr. Gross completed his orthopedic training at the University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.

Sports Medicine Fellowship: It is becoming the standard of care to work with a Fellowship Trained physician. A fellowship is a year-long period of additional training in the area of specialty. Its purpose is to increase knowledge and improve medical judgement, surgical skills, and total management of patients. Dr. Gross completed his Fellowship training in Sports Medicine at the world renowned Alabama Sports Medicine Institute under Dr. William Clancy and Dr. James Andrews. During his Fellowship he worked with Troy University Football Team and the Tampa Bay Rays Baseball Team.

Dr. Gross has a son names Jordan and an Italian Mastiff named Gabby.   In his free time he enjoys traveling and he is an avid cyclist and wine collector.

Kelli Dean, PA-C, Physician Assistant

Kelli has been with the Gross Team since 2011. She attended Saint Louis University for Physician Assistant School which she greatly enjoyed. Prior to SLU she went to Webster University in St. Louis where she was a four year member of the softball team playing both catcher and outfield. She even underwent her own shoulder surgery and recovery as a junior which she often shares with patients. Kelli lives in south St. Louis city, close to Ted Drewes custard. Her local favorite! Both she and her wife have a cute puppy named Indi that is always getting into something. In their free time they enjoy yard work, house projects, and slow pitch softball. Kelli has enjoyed becoming part of the Gross team and really enjoys spending time with patients and educating them on their injuries.

Jennifer Booher, Executive Personal Assistant

Jennifer began her career in Orthopedics in 1992 in Alton, IL and began working with Dr. Gross in 1999. She lives in Illinois with her husband Chris and daughter Phoebe. In her spare time she enjoys watching her daughter, a competitive softball player, compete.

Elise Foelsch, RMA, Medical Assistant and Surgery Coordinator

Elise has worked as a Medical Assistant in Sports Medicine since 1999. She has worked with Dr. Gross since 2005. She is a native of St. Louis and is very active in physical fitness and Triathlons. Her active lifestyle enables her to empathize with the challenges that our patients face. She loves getting to know our patients through the entire process of diagnosis, treatment, rehabilitation, and seeing them return to the activities they enjoy.

Jenny Rolens, Billing Coordinator

Jenny joined The Gross Team in 2008. She is Dr. Gross' billing coordinator. If you have any questions regarding your billing or statement please contact her directly at 314-336-2638.

msgroupphotoChances are that you probably know someone who has MS (multiple sclerosis). Multiple sclerosis is a chronic, unpredictable and often disabling disease that attacks the central nervous system. Symptoms may be mild, such as numbness in the limbs, or severe, such as paralysis or loss of vision. More than 200 new cases of MS are diagnosed each week in the United States alone, affecting more than 400,000 Americans. The cause and cure of MS are not known, and an effective treatment remains elusive. The Gross Team is challenging you to join our campaign, not only for the MS Society but for your own personal wellness. Today is the day to make a commitment to yourself and those who are affected by MS. Sign up today at gatewaymsbikeride.org, resister under “Changing Gears”. For more information please contact Elise at 314-336-2566.