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

Dr. Marcy Lynn Bennett, D.C.

Chiropractor in O Fallon, MO · enumerated 2007.

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

National Provider Identifier

1144368713

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Registry record

Entity type Individual (Type 1)

Name Dr. Marcy Lynn Bennett

Credential D.C.

Sex Female

Practice address O Fallon, MO, 63368

Phone (636) 265-2566

Enumeration date Feb 3, 2007

Last updated in NPPES Mar 31, 2022

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 2000144756 (MO) 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
139154	Other	MO	BLUE CROSS BLUE SHIELD
38309	Other	MO	GHP CMR PROVIDER NUMBER
4401175	Other	MO	UNTIED HEALTHCARE PROVIDE
432179	Other	MO	HEALTHLINK PROVIDER NUMBE

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 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.

What specialty is Marcy Bennett?

Marcy Bennett 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-31.