John J Callahan
MD | Hand Surgery | 38+ years Exp
Medicare Enrolled 3925 Sheridan Drive, Suite 100, Amherst
New York, 14226-0000
716-250-9999 716-250-4177
Maps & DirectionsJohn J Callahan is a Amherst, New York based orthopedic surgeon with 38 years of experience in Hand Surgery. He completed his graduation from State University Of Ny Upstate Medical University in 1987.. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of John J Callahan is 192324 for Hand Surgery in New York.
John J Callahan is trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist.
Complete Profile:
John J Callahan speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
| Specialization: | Orthopedic - Hand Surgery |
| Credentials: | MD |
| Experience: | 38+ years |
| Medical School Attended: | State University Of Ny Upstate Medical University |
| Graduation Year: | 1987 |
| Gender: | Male |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 3925 Sheridan Drive, Suite 100, Amherst,
New York, 14226-0000 |
| Phone: | 716-250-9999 |
| Fax: | 716-250-4177 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| PAC ID: | 4284661414 |
| Enrollment ID: | I20050720000155 |
| NPI Number: | 1952338048 |
| NPI Enumeration Date: | 26 Jun, 2006 |
| NPI Last Update On: | 31 Dec, 2009 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for John J Callahan are as mentioned below.
| License Number | Specialization | State | Status | |
| 192324 | Hand Surgery | New York | Primary | |
Group Practice:
Group practices are practice of medicine by a group of physicians who share their premises and other resources. Following list states all the group name
with which John J Callahan is associated with along with the number of members in that group.
| Organization Name (Group PAC ID) | Members |
| Excelsior Orthopaedics Llp (2062491517) | 118 |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | 3925 Sheridan Drive, Suite 100
Amherst, New York |
| Zip: | 14226-0000 |
| Phone Number: | 716-250-9999 |
| Fax Number: | 716-250-4177 |
Patients can reach John J Callahan at
3925 Sheridan Drive, Suite 100, Amherst, New York or can
call to book an appointment on 716-250-9999.
Comments/ Reviews:
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** Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 13 October, 2025.