John Callahan, MD

John Callahan, MD is a internal medicine in Syracuse, NY with about 40 yrs in practice.

• SpecialtyInternal Medicine
• Medical schoolSTATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY (1986)
• TelehealthNot reported
• Practice size93 clinicians
• Medicare assignmentAccepts assignment (Medicare-approved amount as full payment)
• Medicare activity~79 patients across 85 services, avg age 83

Hospital affiliations

Source: CMS Medicare Physician & Other Practitioners and the Doctors & Clinicians National Downloadable File (most recent release). Counts reflect Original Medicare activity only and are not a measure of quality. “Medicare allows” is the Medicare fee schedule amount — not what an insured or cash patient pays; for patient prices see the linked procedure pages. Always confirm a clinician’s current details with their office.