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Summary
Dr. Nickolas Demark treats head and neck cancer, oral cancer, and drug overdose, and practices internal medicine, hospital medicine, and hospice and palliative medicine. He has 15 years of experience and is affiliated with University of Iowa Health Care Medical Center, Mahaska Health Hospital, and HSHS Saint Mary's Hospital Medical Center. Dr. Demark completed his residency at Western Michigan University School of Medicine and sees patients in Green Bay, Wisconsin, Appleton, Wisconsin, and Iowa City, Iowa.
Overview based on verified provider data
Quick Facts
- 15 years of experience
- Western Michigan University School Of Medicine
- 3 specialties
- 9 areas of expertise
- 3 hospital affiliations
- 3 office locations
- Male
Office Locations
Dr. Nickolas Samuel Demark has 3 locationsCompare with Similar Doctors
 |  |  |  |
| Dr. Nickolas Samuel Demark, DO | Eric Harker | Dr. Adewumi Bakare DMSc, PA-C | Dr. Yogi Gundamraj, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 15 Years of Experience | 25 Years of Experience | 29 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) | Speaks English | |
| Green Bay , WI | Lyons , CO | Mesquite , TX | Brookfield , WI |
| Med School: Des Moines University | Med School: Duke University School Of Medicine | Med School: University of Lynchburg - DMSc | Med School: Spartan Health Sciences University School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Nickolas Samuel Demark
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Nickolas Samuel Demark has the following 3 specialties
Specialty Expertise
Dr. Nickolas Samuel Demark has the following 9 areas of expertise
Certifications, License, & Education
15 Years Experience
Dr. Nickolas Samuel Demark holds an expired medical license in the state of Iowa.
Medical License
Doctor Of Osteopathy with an expired medical license in the state of Iowa that expired in 2026.
Education & Training
Residency
Completed their residency at Western Michigan University School Of Medicine.
Medical School
Graduated from Des Moines University in 2011.
NPI Number
Dr. Demark's NPI number is 1114214004.
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Frequently Asked Questions
- Where is Dr. Nickolas Demark's office located?
- Dr. Nickolas Demark's office is located at 1726 Shawano Ave, Green Bay, WI, 54303.
- Is Dr. Nickolas Demark accepting new patients?
- Dr. Nickolas Demark has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Does Dr. Nickolas Demark accept virtual/telehealth appointments?
- Dr. Nickolas Demark has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Does Dr. Nickolas Demark accept my insurance?
- You can see the insurance plans that Dr. Nickolas Demark accepts on their Vitals profile.
- Which hospitals is Dr. Nickolas Demark affiliated with?
- Dr. Nickolas Demark is affiliated with University Of Iowa Health Care Medical Center, Mahaska Health Hospital, and Hshs Saint Marys Hospital Medical Center.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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