About Dr. Maria Antoniou
Dr. Maria Antoniou is a sleep medicine physician at Penn Sleep Center in Radnor, PA, and is also listed at 3 other locations.
In Medicare's directory, Dr. Antoniou is also listed under pulmonary disease.
Dr. Antoniou completed medical school in 1992.
According to Medicare, Dr. Antoniou accepts Medicare assignment and offers telehealth visits.
Where Dr. Antoniou practices
145 King of Prussia Road, Floor 2, Suite 205 South, Radnor, Pennsylvania, 19087
(800) 789-7366
Clinic rated 5 from 1 Google review
3624 Market Street, Suite 201, Philadelphia, PA 19104
(215) 662-7772
Clinic rated 2.6 from 42 Google reviews
3549 Chestnut Street 9th Floor, Philadelphia, PA 19104
(215) 349-8773
Clinic rated 5 from 1 Google review
Other sleep physicians at these clinics
Questions about Dr. Maria Antoniou
Where does Dr. Maria Antoniou practice?
Dr. Maria Antoniou is listed at Penn Sleep Center (Radnor, PA), Penn Sleep Center at Market Street (Philadelphia, PA), Penn Sleep Center at Sheraton University City Hotel (Philadelphia, PA), and Penn Sleep Centers at Malvern (Malvern, PA). Call the clinic to confirm before you book.
How do I make an appointment with Dr. Maria Antoniou?
Call Penn Sleep Center at (800) 789-7366 and ask for Dr. Antoniou. Ask whether you need a referral and whether your insurance is accepted.
What does Dr. Maria Antoniou specialize in?
Dr. Maria Antoniou specializes in sleep medicine, with pulmonary disease also listed. Sleep medicine physicians diagnose and treat conditions such as sleep apnea, insomnia, narcolepsy, and restless legs syndrome.
Does Dr. Maria Antoniou accept Medicare?
Medicare's clinician directory lists Dr. Antoniou 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.
Does Dr. Maria Antoniou offer telehealth?
Medicare's clinician directory lists Dr. Antoniou as offering telehealth. Ask the clinic which visits can be done remotely; a sleep study itself usually happens at home or in a lab.
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. Maria Antoniou, or is something here out of date? Let us know. Find a sleep doctor near you.