Mark KlaassenMD
Mark Klaassen, MD is an Orthopedic Surgery provider in Warsaw, IN affiliated with 2 ambulatory surgery centers in IN, as of July 2026.
- NPI1053325589
- Registered2006
- Centers2
- StateIN
- Class of1982
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.
Education
Education on record as of August 2026.
Mark Klaassen at a glance
- Provider
- Mark Klaassen
- Credential
- MD
- Specialty
- Orthopedic Surgery
- Procedures
- Orthopedic Surgery CPT codes
- Location
- Warsaw, IN
- Medical school
- Indiana University School of Medicine
- Graduated
- 1982
- NPI registered
- 2006
- NPI
- 1053325589
- 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 Mark Klaassen practice?
Mark Klaassen, MD is based in Warsaw, IN and is affiliated with 2 ambulatory surgery centers: ASC Surgical Ventures LLC Dba Osmc Outpatient Surgery Center in Elkhart, IN and Parkview Ortho Center LLC in Fort Wayne, IN. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Mark Klaassen's NPI number?
Mark Klaassen's National Provider Identifier (NPI) is 1053325589, registered in 2006. Specialty on record: Orthopedic Surgery; credential MD.
Where did Mark Klaassen go to medical school?
Mark Klaassen, MD attended Indiana University School of Medicine, graduating in 1982.
How many Orthopedic Surgery providers in Indiana work at ambulatory surgery centers?
205 Orthopedic Surgery surgeons and proceduralists in Indiana are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Mark Klaassen among them. The Indiana Orthopedic Surgery directory lists each one by city with credential, NPI, and center affiliations.
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