OKLAHOMA CITY — Following the sale of ApothecaryRx pharmacies to Walgreens, Graymark Healthcare said it is shifting its focus to sleep disorders, including obstructive sleep apnea.
Graymark is one of the largest providers of sleep medicine diagnosis and treatment, owning and operating diagnostic sleep centers that treat a wide range of sleep disorders, and also operates a medical equipment supply company that provides disposable and durable medical equipment.