About Dr. Nathan Nowalk
Dr. Nathan Nowalk is a sleep medicine physician at Penn Sleep Center at Market Street in Philadelphia, PA.
In Medicare's directory, Dr. Nowalk is also listed under internal medicine and pulmonary disease.
Dr. Nowalk completed medical school in 2015.
According to Medicare, Dr. Nowalk accepts Medicare assignment.
Where Dr. Nowalk practices
3624 Market Street, Suite 201, Philadelphia, PA 19104
(215) 662-7772
Clinic rated 2.6 from 42 Google reviews
Other sleep physicians at Penn Sleep Center at Market Street
Questions about Dr. Nathan Nowalk
Where does Dr. Nathan Nowalk practice?
Dr. Nathan Nowalk is listed at Penn Sleep Center at Market Street (Philadelphia, PA). Call the clinic to confirm before you book.
How do I make an appointment with Dr. Nathan Nowalk?
Call Penn Sleep Center at Market Street at (215) 662-7772 and ask for Dr. Nowalk. Ask whether you need a referral and whether your insurance is accepted.
What does Dr. Nathan Nowalk specialize in?
Dr. Nathan Nowalk specializes in sleep medicine, with internal medicine and pulmonary disease also listed. Sleep medicine physicians diagnose and treat conditions such as sleep apnea, insomnia, narcolepsy, and restless legs syndrome.
Does Dr. Nathan Nowalk accept Medicare?
Medicare's clinician directory lists Dr. Nowalk as accepting Medicare assignment, which means agreeing to the Medicare-approved amount as full payment for covered services. Confirm with the clinic before your visit.
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. Nathan Nowalk, or is something here out of date? Let us know. Find a sleep doctor near you.