Erik ThyssenMD
Gastroenterology·Creve Coeur, MO
Erik Thyssen, MD is a Gastroenterology provider in Creve Coeur, MO affiliated with 2 ambulatory surgery centers in MO, as of July 2026.
- NPI1750495099
- Registered2006
- Centers2
- StateMO
- Class of1984
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
Erik Thyssen at a glance
- Provider
- Erik Thyssen
- Credential
- MD
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Creve Coeur, MO
- Medical school graduation
- 1984
- NPI registered
- 2006
- NPI
- 1750495099
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Erik Thyssen practice?
Erik Thyssen, MD is based in Creve Coeur, MO and is affiliated with 2 ambulatory surgery centers: Mason Ridge Ambulatory Surgery Center Dba Gateway Endoscopy Center in Saint Louis, MO and Advanced Endoscopy Center in Creve Coeur, MO. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Erik Thyssen's NPI number?
Erik Thyssen's National Provider Identifier (NPI) is 1750495099, registered in 2006. Specialty on record: Gastroenterology; credential MD.
How many Gastroenterology providers in Missouri work at ambulatory surgery centers?
82 Gastroenterology surgeons and proceduralists in Missouri are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Erik Thyssen among them. The Missouri Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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