NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Patrick Leroy Mahan, D. C.

Occupational Health Chiropractor in San Angelo, TX · enumerated 2006.

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

National Provider Identifier

1700818325

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Patrick Leroy Mahan
Credential D. C.
Sex Male
Practice address San Angelo, TX, 76903
Phone (325) 655-1070
Fax (325) 655-1036
Enumeration date Jul 6, 2006
Last updated in NPPES Jan 23, 2009

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111NX0100X Occupational Health Chiropractor Chiropractic Providers · License DC 2748 (TX) Primary
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
350043251 Other TX RAILROAD MEDICARE
601089 Other TX BLUE CROSS BLUE SHIELD

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1700818325 active?
Yes — as of the latest NPPES snapshot, NPI 1700818325 is active (record last updated 2009-01-23).
How do I verify Patrick Mahan's NPI record?
Cross-check NPI 1700818325 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-23.