Nickolas Demark DO
About this NPIWhat this record shows.
NPI 1114214004 is registered to Nickolas Demark DO, a Hospice and Palliative Medicine (Internal Medicine) Physician practising at 1229 C Ave E in Oskaloosa, Iowa. Hospice and Palliative Medicine (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Nickolas Demark DO has been enumerated in the National Provider Identifier (NPI) registry since 2011.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20251022002524Internal MedicineIA
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Nickolas Demark DO accepts. To confirm in-network status with your specific health plan, contact Nickolas Demark DO directly at (641) 672-3100.
Frequently asked
Yes. NPI 1114214004 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Hospice and Palliative Medicine (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (641) 672-3100.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Nickolas Demark DO is a Type-1 individual NPI.