According to PCOM's site here's a differentiation:
- Osteopathic Manipulative Medicine (OMM)
- Osteopathic Manipulative Therapy (OMT)
What is OMM/OMT?
Osteopathic Manipulative Treatment (OMT) is a specific type of medicine utilized by osteopathic physicians (D.O.) which uses the hands to diagnose, treat, and prevent illness. The techniques are successful due to the close association of the musculoskeletal system and the nervous system (neuromusculoskeletal system) and can be used in conjunction with or in place of surgery or prescription medications. OMT includes many different techniques ranging from a light pressure being applied to an impulse being used for joint mobilization. The main purpose of OMT is to restore the body's natural balance (homeostasis) to promote health and healing. All osteopathic physicians are taught these diagnostics and therapeutic palpatory skills and may use them in their practice.
The Osteopathic Manipulative Medicine (OMM) practice at PCOM consists of physicians who specialize in OMT and Neuromusculoskeletal Medicine. Many common complaints such as low back pain, neck pain, headache, shoulder problems and knee problems may be helped with this treatment. It may also be helpful in patients with other medical problems affecting the gastrointestinal, cardiac, pulmonary, etc. systems as an adjunct to their existing medical treatment.