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Bradley Merritt, MD
Health South
3131 Troup Hwy.
Tyler, Texas 75701
Phone: (903) 510-7006
Fax: (903) 510-7010
Bradley Merritt, MD received his medical degree in 1993 from the University of California at Irvine. He completed an internship in Preliminary Medicine at Cedars-Sinai Medical Center in Los Angeles, California and his residency in Physical Medicine and Rehabilitation at Baylor College of Medicine in Houston, Texas.Dr. Merritt is board certified in Physical Medicine and Rehabilitation and is a member of the American Academy of Physical Medicine and Rehabilitation, as well as the Association of Academic Physiatrists, Physicians Association of Spine, Sports and Occupational Medicine, Texas Medical Association and Smith County Medical Association.
Specialized Techniques
- Electoryography
- Spacticity Clinic
- Trigger Point Injections
- Orthotics/Prosthetic Evaluations
What is Spasticity?
Spasticity occurs when muscles contract involuntarily, causing painful, cramp-like spasms and spastic movements. Spasticity is disabling and can be caused by
stroke, multiple sclerosis, cerebral palsy or injury to the head or spinal cord. It usually affects one limb or side of the body, but can also affect the entire body. As the result of years of clinical research, new treatments are now available for spasticity.
Where Can I find Help?
The Health System provides advanced evaluation and treatment of cerebral or spinal
originated spasticity. Patients are evaluated for spasticity or contracture and its effects on function. Treatments are prescribed based on this functional evaluation. Patients are evaluated by a rehabilitation physician to determine the most appropriate type of treatment.
Spasticity Management Services
Available treatments include:
- Medications
- Physical and Occupational Therapy including:
- Bracing
- Splinting
- Casting
- Range-of-Motion
- Stretching and other treatments
- Speech Pathology Assessment
- Botulinum Toxin
- Intrathecal Baclofen Pump
- Orthopedic Surgical Procedures
Who Can Benefit?
Patients with muscle rigidity or limited range of motion affecting the following:
- Gait or Mobility
- Activities of Daily Living
- Posture or Positioning
- Hygiene and Self-care
- Painful Spasms and Contractures
Coordination of Care
Our dedicated professional staff is available to plan and coordinate your care.

Kevin Paul, MD
Health South
3131 Troup Hwy.
Tyler, Texas 75701
Phone: (903) 510-7986
Fax: (903) 510-7988
Kevin Paul, MD received his medical degree in 1997 from The University of Texas Medical Branch in Galveston, Texas. He completed an internship in Internal Medicine at St. Joseph’s Hospital and Medical Center in Phoenix, Arizona and his residency in Physical Medicine and Rehabilitation at Baylor College of Medicine in Houston, Texas. Dr. Paul is board certified in Physical Medicine and Rehabilitation and is a member of the American Academy of Physical Medicine and Rehabilitation, International Spine Intervention Society and the American Association of Neuromuscular/Electrodiagnostic Medicine.
Specialized Techniques
- Diagnostic and Therapeutic Blocks
- Selective epidural steroid
- Sacroiliacs Joint Injections
- Lumbar Facet Joint Injections
- Epidural Steroid Injections
- Electrodiagnostic Testing
- Trigger Point Injections
- Carpal Tunnel Injections
- Joint Injections

Heather Rasnake, PA-C
Health South
3131 Troup Hwy.
Tyler, Texas 75701
Phone: (903) 510-7006
Fax: (903) 510-7010
Heather Rasnake, PA-C, received her Bachelor of Science degree from the University of Alabama at Birmingham. Her certifications include the National Commission for certification of Physician Assistants and Basic Cardiovascular Life Support.
Specialized Techniques

Andrew Berkson, DO
910 E. Houston, Suite 330
Tyler, Texas 75702
Phone: (903) 525-7995
Fax: (903) 525-7929
Andrew Berkson, DO, received his medical degree from Des Moines University Osteopathic Medical Center. He completed his internship at Sun Coast Hospital/Nova Southeastern University, Largo Florida and his residency at Indiana University. Dr. Berkson is board eligible in Physical Medicine and Rehabilitation and is a member of the American Academy of Pain Medicine, American Academy of Physical Medicine and Rehabilitation, the Associations of Academic Physiatrists and the American Osteopathic College of Physical Medicine and Rehabilitation.
Specialized Techniques
- Osteopathic Manual Medicine
- Electrodiagnostic Testing
- Trigger Point Injections
Two convenient locations:
NorthPark Plaza
910 E. Houston, Suite 330
Tyler, Texas 75702
And
TMF Rehabilitation Hospital
3131 Troup Hwy.
Tyler, Texas 75701
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