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).
Our records indicate this doctor is deceased.
Learn more about Dr. John Callahan:
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- Currently 1 of 4 stars
The overall average patient rating of Dr. John Callahan is Poor.
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Specialties & Research
- He has special expertise in 1 area:
- Flu (Human Influenza)
Education & Awards
Dr. Callahan graduated from Philadelphia College of Osteopathic Medicine.
Dr. Callahan has 4 hospital affiliations:
- Mercy Hospital/Scranton
- Geisinger Wyoming Valley Medical Center
Accepted Insurance Plans
Dr. Callahan accepts these health insurances in at least one office:
- United Healthcare - 17 plans
- Highmark Blue Cross Blue Shield - 6 plans
- Unicare - 2 plans
- Humana - 6 plans