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

Mark Andrew Schisler, D.C.

Chiropractor in Saint Louis, MO · enumerated 2007.

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

National Provider Identifier

1639398555

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Registry record

Entity type Individual (Type 1)

Name Mark Andrew Schisler

Credential D.C.

Sex Male

Practice address Saint Louis, MO, 63109

Phone (314) 351-4803

Enumeration date Apr 25, 2007

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 006440 (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
44-03302	Other	MO	UNITED HEALTHCARE
627999	Other	MO	ACN GROUP
0007066424	Other	MO	AETNA
106777	Other	MO	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.

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Frequently asked questions

Where does Mark Schisler practice?

The practice location on file with NPPES is in Saint Louis, MO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mark Schisler?

The National Provider Identifier (NPI) for Mark Schisler is 1639398555, a Type 1 (individual) record in the CMS NPPES registry.

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