Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Miss Mary Lai Heidenreich, REGISTERED DENTAL HY

Dental Hygienist in Saint Louis, MO · enumerated 2010.

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

National Provider Identifier

1548574064

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Registry record

Entity type Individual (Type 1)

Name Miss Mary Lai Heidenreich

Credential REGISTERED DENTAL HY

Sex Female

Practice address 5471 Dr Martin Luther King Dr, Saint Louis, MO, 63112

Phone (314) 367-5820

Fax (314) 367-6326

Enumeration date Jul 27, 2010

Last updated in NPPES Jul 27, 2010

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers · License 2010017047 (MO) Primary

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 Mary Heidenreich's NPI record?

Cross-check NPI 1548574064 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1548574064 active?

Yes, as of the latest NPPES snapshot, NPI 1548574064 is active (record last updated 2010-07-27).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-27.