Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Thomas Allen Mcmahon, DC
Chiropractor in Columbus, OH · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669464608
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Registry record
Entity type Individual (Type 1)
Name Mr. Thomas Allen Mcmahon
Credential DC
Sex Male
Practice address 1400 W 5th Ave, Columbus, OH, 43212
Phone (614) 486-6755
Fax (614) 486-6781
Enumeration date Aug 16, 2005
Last updated in NPPES May 17, 2010
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 4589899 | Other | OH | AETNA |
| 000000121069 | Other | OH | ANTHEM BCBS |
| 44-00098 | Other | OH | UNITED HEALTHCARE |
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.
Frequently asked questions
What specialty is Thomas Mcmahon?
Thomas Mcmahon is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Beau Lawyer Chiropractor · Columbus, OH NPI 1336182138 Thomas Bea Chiropractor · Columbus, OH NPI 1720271158 Beau S. Lawyer, D.C., Inc. Chiropractor · Columbus, OH NPI 1770755324 Thomas A. Mcmahon, D.C. & Company, L.P.A. Chiropractor · Columbus, OH NPI 1780994939 Tri-Village Chiropractic, Inc Chiropractor · Columbus, OH NPI 1932524964 Elizabeth Hannan Massage Therapist · Columbus, OH NPI 1770350290 Douglas Carr Massage Therapist · Columbus, OH NPI 1720855232
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-17.