About Dr. Greg Schumaker
Dr. Greg Schumaker is a sleep medicine physician at LGH MEDICAL GROUP, INC. in Lowell, MA, and is also listed at 1 other location.
In Medicare's directory, Dr. Schumaker is also listed under pulmonary disease and critical care (intensivists).
Dr. Schumaker graduated from Hahneman Medical College of the Pacific in 1999.
According to Medicare, Dr. Schumaker accepts Medicare assignment.
Where Dr. Schumaker practices
800 Washington Street, Boston, MA 02111
(617) 636-7689
Clinic rated 2.5 from 4 Google reviews
Other sleep physicians at these clinics
Questions about Dr. Greg Schumaker
Where does Dr. Greg Schumaker practice?
Dr. Greg Schumaker is listed at LGH MEDICAL GROUP, INC. (Lowell, MA) and The Center for Sleep Medicine (Boston, MA). Call the clinic to confirm before you book.
How do I make an appointment with Dr. Greg Schumaker?
Call LGH MEDICAL GROUP, INC. at (978) 788-7218 and ask for Dr. Schumaker. Ask whether you need a referral and whether your insurance is accepted.
What does Dr. Greg Schumaker specialize in?
Dr. Greg Schumaker specializes in sleep medicine, with pulmonary disease and critical care (intensivists) also listed. Sleep medicine physicians diagnose and treat conditions such as sleep apnea, insomnia, narcolepsy, and restless legs syndrome.
Does Dr. Greg Schumaker accept Medicare?
Medicare's clinician directory lists Dr. Schumaker 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. Greg Schumaker, or is something here out of date? Let us know. Find a sleep doctor near you.