Calvin Johnson

Founder of OSSO (Oklahoma Sports Science & Orthopedics), Dr. Calvin Johnson is dedicated to providing cutting-edge orthopedic care not only for athletes but also for non-athletes. Dr. Johnson grew up surrounded by sports which developed his passion for sports medicine.  An Oklahoma native, Dr. Johnson has performed more than 20,000 arthroscopic procedures for patients across the nation. He is also involved in the research and minimally invasive treatment of osteoarthritis.

  • Knee Arthroscopy
  • ACL Reconstruction Arthroscopic
  • Rotator Cuff Repair / Shoulder Arthroscopy
  • Arthroscopic Shoulder Stabilization
  • Biologic Treatment of Arthritis
  • Arthroscopic Patellar Re-alignment
  • Biologics

Christa Allen

Hometown: Kingston, OK

How long have you worked for Calvin/OSSO: 5 years

Favorite thing about your job: Gratification of helping patients. 

Favorite Restaurant: I love to cook paleo in my kitchen. 

Favorite Candy: Anything Chocolate. 

Favorite Sports Team: Any team my kiddos are on!!! 


Jeniffer Hernandez

Hometown: El Arenal, Jalisco, Mexico

How long have you worked for Calvin/OSSO: 8 years

Favorite thing about your job: Making our patients fell better

Favorite Restaurant: Texas Road House

Favorite Candy: Hershey’s Kisses

Three words that describe you: Responsible, Determination, Happy

Favorite Sports Team: I don’t have one.