About Dr. Thomas Gravelyn
Dr. Thomas Gravelyn is a sleep medicine physician at Trinity Health Livingston Hospital Sleep Disorders Center in Howell, MI, and is also listed at 1 other location.
In Medicare's directory, Dr. Gravelyn is also listed under internal medicine.
Dr. Gravelyn graduated from University of Michigan Medical School in 1981.
According to Medicare, Dr. Gravelyn accepts Medicare assignment and offers telehealth visits.
Where Dr. Gravelyn practices
620 Byron Road, Howell, MI 48843
(810) 534-1170
Other sleep physicians at these clinics
Questions about Dr. Thomas Gravelyn
Where does Dr. Thomas Gravelyn practice?
Dr. Thomas Gravelyn is listed at Trinity Health Livingston Hospital Sleep Disorders Center (Howell, MI) and Trinity Health Michigan (Ypsilanti, MI). Call the clinic to confirm before you book.
How do I make an appointment with Dr. Thomas Gravelyn?
Call Trinity Health Livingston Hospital Sleep Disorders Center at (810) 534-1170 and ask for Dr. Gravelyn. Ask whether you need a referral and whether your insurance is accepted.
What does Dr. Thomas Gravelyn specialize in?
Dr. Thomas Gravelyn specializes in sleep medicine, with internal medicine also listed. Sleep medicine physicians diagnose and treat conditions such as sleep apnea, insomnia, narcolepsy, and restless legs syndrome.
Does Dr. Thomas Gravelyn accept Medicare?
Medicare's clinician directory lists Dr. Gravelyn 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. Thomas Gravelyn offer telehealth?
Medicare's clinician directory lists Dr. Gravelyn 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. Thomas Gravelyn, or is something here out of date? Let us know. Find a sleep doctor near you.