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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ann Falor Callahan, MD

Surgery Physician in Torrance, CA · enumerated 2008.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1093962847

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Registry record

Entity type Individual (Type 1)
Name Dr. Ann Falor Callahan
Credential MD
Sex Female
Practice address 23451 Madison St Ste 340, Torrance, CA, 90505
Phone (310) 373-6864
Enumeration date Aug 23, 2008
Last updated in NPPES Jan 16, 2025

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 60692 (MN) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A112637 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is NPI 1093962847 active?
Yes, as of the latest NPPES snapshot, NPI 1093962847 is active (record last updated 2025-01-16).
How do I verify Ann Callahan's NPI record?
Cross-check NPI 1093962847 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-16.