Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stephen E. Thierauf, MD

Pediatrics Physician in Fenton, MO · enumerated 2006 · practices at Mercy Health Services, LLC.

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

National Provider Identifier

1629134333

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Stephen E. Thierauf

Credential MD

Sex Male

Practice address 1203 Smizer Mill Rd, Ste 108, Fenton, MO, 63026

Phone (636) 717-1340

Fax (636) 717-1344

Enumeration date Dec 28, 2006

Last updated in NPPES Mar 3, 2008

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 036109602 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
204935407	Medicaid	MO	-

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

Where does Stephen Thierauf practice?

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

What is the NPI number for Stephen Thierauf?

The National Provider Identifier (NPI) for Stephen Thierauf is 1629134333, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Yulia Lifits-Podorozhansky Obstetrics & Gynecology Physician · Fenton, MO NPI 1689607277 Patricia Mills Emergency Medicine Physician · Fenton, MO NPI 1275643553 Heidi Gioia Obstetrics & Gynecology Nurse Practitioner · Fenton, MO NPI 1427142579 Timothy Schloss Interventional Cardiology Physician · Fenton, MO NPI 1881745909 Miriam Rusert Pharmacist · Fenton, MO NPI 1649434606 Mary Hammel Family Nurse Practitioner · Fenton, MO NPI 1598067779 Laura Covert Family Medicine Physician · Fenton, MO NPI 1568727626 Amanda Breedlove Pediatric Nurse Practitioner · Fenton, MO NPI 1235486952

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-03.