Mr. Ryan Alexander. Hartshorn is a Fullerton, California based male physical therapist with 24 years of experience in Physical Therapy. He completed his graduation from Other in 2001. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Mr. Ryan Alexander. Hartshorn as Physical Therapist is PT26740 in California. Mr. Ryan Alexander. Hartshorn evaluate and treat people with health problems resulting from injury or disease. He assess joint motion, muscle strength and endurance, function of heart and lungs, and performance of activities required in daily living, among other responsibilities. Treatment includes therapeutic exercises, cardiovascular endurance training, and training in activities of daily living. Physical therapists treat disease, injury, or loss of a bodily part by physical means, such as the application of light, heat, cold, water, electricity, massage and exercise. They develop treatment plans based upon each patient's strengths, weaknesses, range of motion and ability to function. Physical therapy is a health care field concerned primarily with the treatment of disorders with physical agents and methods, such as massage, manipulation, therapeutic exercises, cold, heat (including short-wave, microwave, and ultrasonic diathermy), hydrotherapy, electric stimulation and light to assist in rehabilitating patients and in restoring normal function after an illness or injury.