Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark F Heiland, PHD

Cognitive & Behavioral Psychologist in St Louis, MO · enumerated 2006.

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

National Provider Identifier

1780650796

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Registry record

Entity type Individual (Type 1)

Name Mark F Heiland

Credential PHD

Sex Male

Practice address 4542 West Pine Blvd, St Louis, MO, 63108

Phone (314) 609-5532

Enumeration date Feb 28, 2006

Last updated in NPPES Feb 23, 2012

Taxonomy & licenses

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License 2009018630 (MO) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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

How do I verify Mark Heiland's NPI record?

Cross-check NPI 1780650796 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1780650796 active?

Yes, as of the latest NPPES snapshot, NPI 1780650796 is active (record last updated 2012-02-23).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-23.