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Nickolas Demark, DO — NPI 1114214004, Oskaloosa, IA | NPI Central

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NPI 1114214004

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Nickolas Demark, DO

NPI 1114214004 · Hospice and Palliative Medicine (Internal Medicine) Physician · Oskaloosa, IA

Provider details

NPI number: 1114214004
Entity type: Individual
Primary specialty: Hospice and Palliative Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
Credential: DO
Sex: Male
Sole proprietor: No
License: 5101019580 (MI)

Specialties & taxonomies

Hospice and Palliative Medicine (Internal Medicine) PhysicianPrimary207RH0002XLicense DO-06639 (IA)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 5101019580 (MI)
Allopathic & Osteopathic Physicians
Hospitalist Physician208M00000XLicense 62482 (WI)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 62482 (WI)
Allopathic & Osteopathic Physicians

Practice location

1229 C Ave E

Oskaloosa, IA 52577-4298

Phone: (641) 672-3100

Approximate (ZIP-level) locationGet directions

More IA providers

Mailing address

1229 C Ave E

Oskaloosa, IA 52577-4298

Additional practice locations (6)

1818 N Meade St
Appleton, WI 54911-3454
Phone: (920) 735-7645
Fax: (920) 735-7618
1726 Shawano Ave
Green Bay, WI 54303-3216
Phone: (920) 496-4700
1715 Dousman St
Green Bay, WI 54303-3211
Phone: (920) 496-4700
130 2nd St
Neenah, WI 54956-2883
Phone: (920) 729-2738
Fax: (920) 729-3021
900 Illinois Ave
Stevens Point, WI 54481-3114
Phone: (715) 346-5000
900 Illinois Ave
Stevens Point, WI 54481-3114
Phone: (715) 346-5000

Registry dates

Enumerated: 2011-06-30
Last updated: 2025-09-11
Certified: 2025-09-11

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.