William Callahan, MD
Quick Facts
NPI Validation Status: Verified
Provider Overview
WILLIAM CALLAHAN, MD is a Healthcare provider based in Gainesville, GA who has been registered with CMS since 2005. This NPI is currently Active under CMS NPPES registry.
Provider Details
Practice Location
Specialties & Licenses
Mailing Address
How to Use This NPI
For Insurance Billing
Use NPI 1356344535 in Box 33 of the CMS-1500 claim form. This number is required by all major insurance carriers to identify the billing provider and process electronic medical claims.
For Credentialing
Reference NPI 1356344535for provider credential verification. Hospital systems, state licensing boards, and CAQH directories query this number to verify the provider's active clinical status.
For Patients
Share NPI 1356344535 with your insurance company. If you need to verify out-of-network benefits or file a reimbursement claim, your insurance provider will require this number to process it.
About Specialty not listed
Specialists in Specialty not listed provide expert clinical care within their specific domain, focusing on the diagnosis, treatment, and management of conditions relevant to their field of practice.
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People Also Ask
What is William Callahan's NPI number?
Is William Callahan's NPI currently active?
What does William Callahan specialize in?
174400000X.