About Dr. Walter Castro
Dr. Walter Castro is a sleep medicine physician at Penn State Health in Hershey, PA.
Dr. Castro is registered in pediatric sleep medicine.
Where Dr. Castro practices
Other sleep physicians at Penn State Health
Questions about Dr. Walter Castro
Where does Dr. Walter Castro practice?
Dr. Walter Castro is listed at Penn State Health (Hershey, PA). Call the clinic to confirm before you book.
How do I make an appointment with Dr. Walter Castro?
Call Penn State Health at (800) 243-1455 and ask for Dr. Castro. Ask whether you need a referral and whether your insurance is accepted.
What does Dr. Walter Castro specialize in?
Dr. Walter Castro 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. Walter Castro, or is something here out of date? Let us know. Find a sleep doctor near you.