Physical Therapists:

Dennis L. Rohrig, P.T.

Dennis relocated to Southern California from Canada in 1965 to attend Loma Linda University where he graduated with a degree in Physical Therapy in 1969.

He began his career with Kerland Jobe Sports Medicine in Inglewood, the exclusive provider to professional sports team franchises west of the Mississippi including the LA Lakers Basketball , Dodgers Baseball, and football teams such as the LA Rams, Seattle Seahawks and San Francisco 49ers.

Moving to Hemet in the late 1970’s Dennis opened Physical Therapy-Sports Institute (PTSI) in 1978 and is recognized as the leader in Physical Therapy services for the community including athletes from the local high schools. He is the only PRRT certified therapist in our area.  

Dennis is married with 2 sons.  He enjoys spending time on the open road  traveling with his wife in their motor home when time permits.

Dianne Smith, P.T.

Dianne graduated from Loma Linda University in 1992 with a Master’s Degree in physical therapy. She has been practicing at Physical Therapy-Sports Institute (PTSI), an outpatient physical therapy practice, for the past 20 years. As a senior therapist in the clinic, Dianne’s expertise in sports and orthopedic therapy applications as well as in home health.

She is a native of Southern California and was born and raised in San Diego County.

Her hobbies include bike riding, gardening, cooking and enjoying the great outdoors.

Dianne believes her patients give back to her as much as she gives to them. She considers families a blessing and God as her guiding light.

Hector Olquin, D.P.T.Hector Olguin, D.P.T.

Hector attended the University of California Riverside where he received a Bachelor of Science degree in Biology in 2007.  Continuing his education at Loma Linda University, he earned his Doctorate degree in Physical Therapy in 2011 and joined Physical Therapy-Sports Institute (PTSI) shortly thereafter.

Hector has lived in southern California his entire life.  As an active and athletic individual growing up, he found his calling in physical therapy following a sports injury and being treated in a physical therapy clinic himself.

Since graduating, Hector has found a home at PTSI where he continues to expand his skills as a growing clinician.

Monica Miller, D.P.T

Monica is an Inland Empire Native.  She always knew she wanted to be in the medical field, but did not decide on Physical Therapy until she was injured in college, where she was an elite swimmer in the Butterfly and Backstroke with hopes of Olympic Trials.  She underwent a few months of Physical Therapy and felt her career calling her.

Monica earned a B.S. in Kinesiology and her Doctorate in Physical Therapy in 2005.  Since then, she has had a wide range of experience including outpatient orthopedics, wound care, acute care, and spent four years as the director and treating therapist of a large Workers Compensation Physical Therapy clinic.  Currently she is working on M.D.T certification (McKenzie Method).

Monica joined the PTSI team because she found the “feel” she was looking for.  She wanted a clinic with that “small enough to care” attitude, along with the expertise and knowledge to make a difference.  She enjoys the professional staff from the front desk to the Physical Therapists.  She is always looking to learn new techniques that she can use to heal her patients and restore their function as fast and safely as possible.
Nothing comes easy, but Monica will help her patients along on their journey.

Matthew Brown M.P.T

Matthew Brown was born in Upland, California.  After an injury and ACL reconstruction and rehabilitation, he decided Physical Therapy was his calling.  An avid baseball enthusiast, coach and mentor he currently attends the Olympic training center camp in Chula Vista, CA.  He is also the strength and conditioning coach and pitching instructor for a local high school baseball team.

 He studied engineering and was a design engineer for 14 years.  He then completed studies and received his PTA license in 1995.  While working as a PTA (Physical Therapy Assistant), he was accepted to Loma Linda University’s Physical Therapy program where he received his Master’s in Physical Therapy in 1999.  Since graduation, he completed Kaiser’s Manual Therapy and Evaluation program and subsequent residency program to improve his skills.

Matt Joined the staff at PTSI in April 2014 and enjoys working with patients to help improve movement and function.  Always keeping up with the most current continuing education, he uses new techniques to help people restore their quality of life.


Charles Schelly, D.C.

Dr. Schelly attended UC Riverside for his undergraduate requirements prior to being accepted to the Los Angeles College of Chiropractic (LACC). He completed his clinical residency at the LACC Glendale Clinic prior to his externship with Dr. Ruth Gray in Anaheim. After an associate position in Hesperia, he opened his own chiropractic practice in Idyllwild, CA.
In 2009 he joined the Physical Therapy Sports Institute Team to enhance the services provided to the valley residents.
Dr. Schelly was raised in the warm sunshine of Palm Desert, Ca. He and his wife are raising their two boys and daughter in Idyllwild, CA. His passion is volunteering and serving his community. School organizations along with sports teams, scouting and church keeps Dr. Schelly’s schedule full throughout the year.

Massage Therapist:

Tina Aragon, C.M.T.

Tina graduated from InterCoast College in 2008 as a Massage Therapist. Certified by the state of California in 2010, she is also approved to provide services through ASHLink, a provider for many insurance plans with massage benefits. Tina also is an instructor for massage therapy at a private college in Riverside, CA.

Joining Physical Therapy-Sports Institute (PTSI) in 2010, Tina has become an intricate part of PTSI’s total patient care and wellness plan.
Tina has lived in Southern California her entire life.

She is married and has raised her family locally and continues to be very involved in her church and community.

Jennifer Schaffner, C.M.P.

Jennifer has been with PTSI for over 5 years.  She graduated from Academy of Holistic Health Arts in 2012 and is certified by the State of California as a Certified Massage Practitioner.

Jennifer was born and raised in the San Jacinto Valley.

Her passion for massage began as a child when she would massage friends and family just to help them.  She believes in the benefits massage provides and looks forward to helping others in the community and is an important part of PTSI’s patient wellness plan.