Our Team


Name: 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

Name: 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!!! 


Name: Donna Brooks

Hometown: OKLAHOMA CITY

How long have you WITH Calvin/OSSO: 21 YEARS

Favorite thing about your job: JUST HAPPY TO HAVE A JOB

Three words that describe you: PROFESSIONAL EMPHATHETIC CONFIDENT LOYAL LOVING GENERIOUS HARD WORKING DEDICATED DETERMINED DRIVEN FOCUSED (NEED ANY MORE LOL)

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Name: Jeniffer Hernandez

Hometown: El Arenal, Jalisco, Mexico

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

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.

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Name: Molly Morgan

Hometown: Oklahoma City, OK

How long have you worked for Calvin/OSSO: I have worked for Dr. Johnson for 2 years.

Favorite thing about your job: My favorite thing about my job is that it is fast paced and never boring. I love talking to patients and working to get them scheduled.

Favorite Restaurant: Hideaway Pizza

Favorite Candy: Snickers

Three words that describe you: Goal oriented, Driven, Compassionate

Favorite Sports Team: Oklahoma University football

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Name: Tabitha Wieland

Hometown: Hudson

How long have you worked for Calvin/OSSO: 7 months

Favorite thing about your job: I enjoy having the opportunity to meet new people and, help them during their recovery time.

Favorite Restaurant: Salt Grass Steak House

Favorite Candy: Snickers

Three words that describe you: Compassionate, Dependable, Family Oriented.

Favorite Sports Team: Illusion Softball Team