About Us

Founded and Owned By a Physical Therapist

TheraMatrix Services, Inc. (TSI) is the result of the vision of its founder, Robert E. Whitton, PT, who felt there was a better way to provide physical rehabilitation services. Mr. Whitton established TSI in 1981 and quickly grew the company to include a group of physical therapy clinics in Southeastern Michigan, each delivering physical rehabilitation services to patients and payers with a high level of quality in a cost-effective manner.

Innovative Model Leads to National Network

This approach became so successful the TSI family grew to include 13 clinics – a network extensive enough to provide companies in Southeastern Michigan with this alternative physical therapy management approach. The network delivered unprecedented patient satisfaction scores as well as bottom-line savings for payers that ran counter to the prevailing trend of skyrocketing health care costs.

TSI has now expanded nationwide and includes thousands of networked physical therapy clinics in more than 40 states through the TheraMatrix Physical Therapy Network (TPTN).

CMS Accreditation Since 1982

TSI has been recognized by the Centers for Medicare & Medicaid Services (CMS), as a National Certified Rehabilitation Agency – the highest level an outpatient facility can achieve. TSI also is active with professional and civic organizations including the American Physical Therapy Association (APTA), the National Association of Rehabilitation Agencies (NARA), and local Chambers of Commerce. TSI is a minority owned enterprise, certified by the Michigan Minority Business Development Council and is an equal opportunity employer (EOE).

Corporate Staff:

Robert E. Whitton, PT
Chief Executive Officer

Mr. Whitton founded TheraMatrix, Inc. (formerly Whitton, Boutros & Associates) in 1981 and is recognized as an innovator and pioneer of successful rehabilitation programs. TheraMatrix leads the industry in providing quality-oriented, cost-effective, rehabilitation programs and solutions that are historically proven to exceed customer expectations. Mr. Whitton created and developed on-site rehabilitation services for the industrial environment, TheraMatrix Physical Therapy Network (TPTN) (a national network of thousands of licensed, credentialed outpatient therapy providers), and created a carve-out model for the ancillary service of physical therapy.

As a licensed physical therapist, Mr. Whitton is focused on quality, compliance and affordable health care services. As a Federally Certified Rehab Agency through the Centers for Medicare and Medicaid (CMS), TheraMatrix is held to the highest standards applicable to an outpatient physical therapy organization. Throughout the years, TheraMatrix has expanded the company’s outpatient clinic business to include centers throughout the metro Detroit area.

TheraMatrix’s national provider network (TPTN), on-site rehabilitation services, and outpatient clinics support Fortune 100 companies, government agencies (like the Veterans Administration), hospitals, small to mid-sized organizations, and thousands of physicians. Mr. Whitton holds a BS in psychology and is a licensed physical therapist. He has over 25 years experience in physical therapy start-up projects, operations, and is a leader in the physical therapy industry.

Lucy Stokes

Lucy has been with TheraMatrix Physical Therapy Network (TPTN) since September 2005. Lucy graduated from nursing school in Virginia in 1996 and participated in the Leadership and Management Training Program at Xavier University in 2002.

As Vice President of Managed Care Operations, Lucy oversees all functions of TPTN. She has an extensive nursing background and has been exclusively in managed care since 1999. Prior to joining our organization, she was the Utilization Review Nurse Supervisor at United Medical Resources in Cincinnati, OH, where she was instrumental in assisting the company in obtaining URAC accreditation in Utilization Management.


TheraMatrix Physical Therapy Network (TPTN) Provider Directory

Healthcare Professionals
National Provider
Network (TPTN)
Benefit Administration/ Managed Care
Government Services Contract
Veterans Administration Services
Industrial & Worker's Comp. Services
Hospital Rehab. Management
Outpatient Therapy Clinics
- Accepted Insurances


TheraMatrix Physical Therapy Network (TPTN) is pleased to announce that effective 3/1/16 we have been approved as the administrator of the outpatient physical therapy benefit for eligible Active FCA US (Chrysler) – UAW and Other Bargaining Unit Members and their eligible dependents that are enrolled in the Standard Care Network (SCN) plan and Preferred Provider Organization (PPO) plan.