Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gary Todd Barker, D.C.

Chiropractor in Portland, TN · enumerated 2006.

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

National Provider Identifier

1710920004

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Registry record

Entity type Individual (Type 1)

Name Dr. Gary Todd Barker

Credential D.C.

Sex Male

Practice address 826 S Broadway, Portland, TN, 37148

Phone (615) 323-0130

Fax (615) 323-0136

Enumeration date Jun 14, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License DC0000001447 (TN) 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
4048097	Other	TN	BCBS
2323896	Other	TN	CIGNA

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

How do I verify Gary Barker's NPI record?

Cross-check NPI 1710920004 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1710920004 active?

Yes, as of the latest NPPES snapshot, NPI 1710920004 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.