About Dr. Hasan Ercan
Dr. Hasan Ercan is a sleep medicine physician at Geisinger-Lewistown Sleep Disorders Center in Lewistown, PA.
Where Dr. Ercan practices
400 Highland Avenue, Lewistown, PA 17044
(717) 901-0317
Clinic rated 5 from 1 Google review
Other sleep physicians at Geisinger-Lewistown Sleep Disorders Center
Questions about Dr. Hasan Ercan
Where does Dr. Hasan Ercan practice?
Dr. Hasan Ercan is listed at Geisinger-Lewistown Sleep Disorders Center (Lewistown, PA). Call the clinic to confirm before you book.
How do I make an appointment with Dr. Hasan Ercan?
Call Geisinger-Lewistown Sleep Disorders Center at (717) 901-0317 and ask for Dr. Ercan. Ask whether you need a referral and whether your insurance is accepted.
What does Dr. Hasan Ercan specialize in?
Dr. Hasan Ercan specializes in sleep medicine. Sleep medicine physicians diagnose and treat conditions such as sleep apnea, insomnia, narcolepsy, and restless legs syndrome.
From the NPI registry (data through November 2, 2026) and Medicare's Doctors and Clinicians directory (released November 12, 2026). These are records physicians and clinics keep with the government, and they can lag behind changes. They do not show board certification. Are you Dr. Hasan Ercan, or is something here out of date? Let us know. Find a sleep doctor near you.