Final answer:
The specialist the physician referred the patient to is an orthopedist.
Step-by-step explanation:
The specialist that the physician referred the patient to in order to strengthen the muscles and relieve pain is an orthopedist. Orthopedists specialize in diagnosing and treating disorders and injuries related to the musculoskeletal system. They can provide various treatments such as medications, exercises, braces, or surgery depending on the specific condition.
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