Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
MARK A KLAASSEN, MD
ActiveMARK A KLAASSEN, MD is a Orthopaedic Surgery healthcare provider located in WARSAW, Indiana. NPI 1053325589 is currently active in the NPPES registry. Verify at CMS.
Orthopaedic Surgery · WARSAW, IN
Registration Details
- NPI Number
- 1053325589
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Jul 28, 2006 (19.863507715426 yrs)
- Last Updated
- Dec 23, 2025
- License
-
01031923A (IN)
Practice Information
- Address
-
315 EAST 200 NORTHSTE AWARSAW, IN, 46582Browse IN providers · Browse ZIP 46582
- Phone
- 5742644163
- Fax
- 5742629650
- Primary Specialty
-
Orthopaedic Surgery
207X00000X
Other Orthopaedic Surgery Providers in WARSAW, IN
| Name | Credential | NPI |
|---|---|---|
| LEAMON D WILLIAMS | MD | 1073514451 |
| DR. LEO DEAN JANSEN | M.D. | 1518943042 |
| DR. KYLE RICHARD CARLSON | D.O. | 1255718367 |
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.