Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Anthony Hewitt, DC

Chiropractor in Florissant, MO · enumerated 2006 · practices at Walton Cs-Xviii, PC.

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

National Provider Identifier

1740208271

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Mark Anthony Hewitt

Credential DC

Sex Male

Practice address 3533 Dunn Rd Ste 236, Florissant, MO, 63033

Phone (314) 831-8877

Fax (314) 831-8874

Enumeration date Jul 17, 2006

Last updated in NPPES Sep 19, 2008

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 2005019885 (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
205274	Other	MO	BLUE CROSS 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1740208271 active?

Yes, as of the latest NPPES snapshot, NPI 1740208271 is active (record last updated 2008-09-19).

How do I verify Mark Hewitt's NPI record?

Cross-check NPI 1740208271 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 →

Walton Cs-Xviii, PC Chiropractor · Florissant, MO NPI 1619075165

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-19.