Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Erik P Thyssen, MD

Q: What is the NPI number for Erik Thyssen?

The National Provider Identifier (NPI) for Erik Thyssen is 1750495099, a Type 1 (individual) record in the CMS NPPES registry.

Gastroenterology Physician in Creve Coeur, MO · enumerated 2006.

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

National Provider Identifier

1750495099

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Registry record

Entity type Individual (Type 1)

Name Erik P Thyssen

Credential MD

Sex Male

Practice address Specialists in Gastroenterology, 11525 Olde Cabin Road, Creve Coeur, MO, 63141

Phone (314) 997-0554

Fax (314) 997-5086

Enumeration date Aug 17, 2006

Last updated in NPPES Mar 8, 2021

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License MDR3P63 (MO) 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
203703103	Medicaid	MO	-
211593	Other	-	HEALTHLINK
107244	Other	-	BLUE CROSS/BLUE SHIELD
1059638	Other	-	UHC
43076	Other	-	GHP
100008440	Other	-	RAILROAD MEDICARE
003012657	Other	MO	MEDICARE LEGACY
4288200	Other	-	AETNA

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 Erik Thyssen 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 Erik Thyssen?

The National Provider Identifier (NPI) for Erik Thyssen is 1750495099, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-08.