Our Staff

Dr. Christopher J. Morton, Sr., PT, DPT
Clinical Doctorate in Physical Therapy, Master of Physical Therapy, Loma Linda University, B.Sc. Zoology, cum laude, University of Arkansas. Recipient of Fulbright College of Arts and Science Honors Award, National Dean’s List Award and Loma Linda University Student Research Award. Presented research at American Physical Therapy Association conference.

Dr. Morton is the co-founder of Mariners Physical Therapy and has 17 years of clinical experience in the field of orthopedics and sports rehabilitation. He is the director of clinical services and program development for Mariners. In addition to his formal training, Dr. Morton has been involved in extensive post-graduate continuing education including completing the one year Maitland Advanced Manual Therapy Program for Orthopedic Rehabilitation through Kaiser Permanente. He is also currently an adjunct professor for Vanguard University's Department of Sports and Exercise Science Department and a consultant to the Allergan Pharmaceutical company for the use Botox in musculoskeletal dysfunction. Past member of the Division I University of Arkansas Football team (Southwest Conference Champions, Sugar Bowl and Hall of Fame Bowl appearances).

Mark A. Kirsch, MPT
Master of Physical Therapy, Chapman University, B.Sc. Biology, University of California, Irvine. At Chapman University he majored in Anatomy with a focus on the temporomandibular joint (TMJ) and a minor in neurology.

Mr.Kirsch is co-owner of Mariners Physical Therapy and has extensive experience in the field of orthopedics and sports rehabilitation. Mark has completed the Maitland Advanced Manual Therapy Program for orthopedics which is an extensive one year post-graduate continuing education and other courses including Vestibular / Balance Training, Advanced Shoulder Mechanics, and Movement Analysis of Gait. In addition to his formal training, he has been involved with South California soccer for 25 years and coaching for the last 15 years consisting of youth club silver elite, gold, and premier level teams. He has experience with providing PT for professional soccer teams, Olympic level Athletes, and world class dancers. Mark played Division I soccer for University of California Irvine and continues to play soccer for a competitive men’s team.

Dr. Michael Thorpe, DPT

Amy Umansky, OTR

Dr. Kimberly Witkowski, DPT

Ivette Moses, MPT

Mario Bolanos, PTA

Monica Arceo, Administrator
Ms. Arceo has been with Mariners since 1995 and coordinates all non-patient care related matters.


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 2. Medicare

 3. Monarch Healthcare HMO

 4. Worker's Compensation