About Dr. Frederick Nachtwey
Dr. Frederick Nachtwey is a sleep medicine physician at BASS Medical Group in Walnut Creek, CA.
In Medicare's directory, Dr. Nachtwey is also listed under pulmonary disease and internal medicine.
Dr. Nachtwey graduated from Washington University School of Medicine in 1974.
According to Medicare, Dr. Nachtwey accepts Medicare assignment.
Where Dr. Nachtwey practices
Other sleep physicians at BASS Medical Group
Questions about Dr. Frederick Nachtwey
Where does Dr. Frederick Nachtwey practice?
Dr. Frederick Nachtwey is listed at BASS Medical Group (Walnut Creek, CA). Call the clinic to confirm before you book.
How do I make an appointment with Dr. Frederick Nachtwey?
Call BASS Medical Group at (925) 329-3710 and ask for Dr. Nachtwey. Ask whether you need a referral and whether your insurance is accepted.
What does Dr. Frederick Nachtwey specialize in?
Dr. Frederick Nachtwey specializes in sleep medicine, with pulmonary disease and internal medicine also listed. Sleep medicine physicians diagnose and treat conditions such as sleep apnea, insomnia, narcolepsy, and restless legs syndrome.
Does Dr. Frederick Nachtwey accept Medicare?
Medicare's clinician directory lists Dr. Nachtwey 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. Frederick Nachtwey, or is something here out of date? Let us know. Find a sleep doctor near you.