A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
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The overall average patient rating of Dr. David Keller is Excellent.
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Prepare before visiting Dr. Keller
Influenza Patient Education Learn all about influenza and common symptoms of the flu as well as treating this type of viral infection.Before Visiting Dr. Keller Learn More
Specialties & Research
- He has special expertise in 1 area:
- Flu (Human Influenza)
Education & Awards
Dr. Keller graduated from Philadelphia College of Osteopathic Medicine. He has 2 awards.
Dr. Keller has 5 hospital affiliations:
- Maine Medical Center
- Mercy Hospital
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- Additional Information
- Dr. David D Keller DO is a male Family Practitioner, has 10 years of experience and practices in Family Medicine and General Practice.
- Where does Dr. David D. Keller practice?
- Dr. David Keller has 1 office location.
Dr. David Keller practices Family Medicine and General Practice near Portland, ME.
See Portland Family Physicians and Portland General Practitioners.