About
JOHN CALLAHAN, MD is a sports medicine (orthopedic) located at 3925 SHERIDAN DRIVE in AMHERST, NY.
John Callahan is one of 14 orthopedic providers listed in AMHERST, NY on AdvOrtho.
Practice at a glance
In 2024, 100% of John Callahan's identifiable Medicare procedure volume was hand and wrist work. Their most frequent service was incision of tendon covering of finger for 27 Medicare patients.
Distinct procedures
4
Medicare patients
68
busiest single service
Care setting
90% office
mostly outpatient
Most-performed procedures, 2024
Incision of tendon covering of finger
42
27 patients · above the state median of 24
Release and/or relocation of hand nerve
30
25 patients · near the state median of 24
Aspiration and/or injection of fluid from small joint
24
17 patients · near the state median of 35
Injection into tendon or ligament
14
11 patients · below the state median of 34
Training and practice
John Callahan has been in practice since 1987, after graduating from State University of Ny Upstate Medical University.
- Practices with Excelsior Orthopaedics LLP (146 clinicians)
- Affiliated with Erie County Medical Center and Mercy Hospital of Buffalo
Registry record
Registered subspecialty
- Licensed in New York
- Practices within a group or organization
Where this comes from
Procedure volumes:CMS Medicare Physician & Other Practitioners, 2024. Fee-for-service claims only, so they exclude privately insured, Medicare Advantage and pediatric patients - volume is not comparable across practices with different patient mixes. These are billing records, not outcomes.
Training and practice: CMS Doctors and Clinicians list. A graduation year is when training finished, not years of orthopedic experience or a board certification. Affiliations come from Medicare enrollment and may be incomplete.
Registry details: NPPES. Subspecialties are self-reported at registration, not a board certification.
Credentials: Doctor of Medicine (MD)
An MD degree indicates completion of a medical doctorate program focused on allopathic medicine. MDs complete four years of medical school followed by residency training in their chosen specialty. Orthopedic surgery residencies typically last five years and include extensive training in surgical and non-surgical treatment of musculoskeletal conditions.
Office Information
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Profile information is sourced from the public CMS NPI Registry. Contact the office directly to confirm current availability and insurance acceptance. Providers can update this profile to reflect their current practice.
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