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Leslie W Thien, CRNA

Certified Registered Nurse Anesthetist in Creve Coeur, MO · enumerated 2005.

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

National Provider Identifier

1346222783

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Registry record

Entity type Individual (Type 1)
Name Leslie W Thien
Credential CRNA
Sex Male
Practice address 10448 Old Olive Street Rd, Suite 100, Creve Coeur, MO, 63141
Phone (314) 743-8098
Enumeration date Nov 18, 2005
Last updated in NPPES May 21, 2008

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 080623 (MO) Primary
CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier Type State Issuer
915233126 Medicaid MO -
P00307916 Other MO RR MEDICARE

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 Leslie Thien practice?
The practice location on file with NPPES is in Creve Coeur, MO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Leslie Thien?
The National Provider Identifier (NPI) for Leslie Thien is 1346222783, 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 2008-05-21.