Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
NICKOLAS S DEMARK, DO
ActiveNICKOLAS S DEMARK, DO is a Hematology healthcare provider located in OSKALOOSA, Iowa. NPI 1114214004 is currently active in the NPPES registry. Verify at CMS.
Hematology · OSKALOOSA, IA
Registration Details
- NPI Number
- 1114214004
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Jun 30, 2011 (15.129791476972 yrs)
- Last Updated
- Sep 11, 2025
- Licenses
-
5101019580 (MI)62482 (WI)62482 (WI)DO-06639 (IA)
Practice Information
- Address
-
1229 C AVE EOSKALOOSA, IA, 525774298Browse IA providers · Browse ZIP 52577
- Phone
- 6416723100
- Primary Specialty
-
Hematology
207RH0002X
- Additional Specialty
- Hospitalist
- Additional Specialty
- Internal Medicine
- Additional Specialty
- Hematology
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.