Dr. Nickolas S. Demark
- Gender: Male
- Experience: 10 years
- Graduation year: 2011
- Sole propriator: No
- NPI: 1114214004
Dr. Nickolas S. Demark DO
Hospitalist
He is located at 1229 C Avenue East in Oskaloosa, IA 52577. Can help patients with the following: Anemia, Bladder Control, Chest Pain, Diarrhea, Heart Disease, Nausea and Vomiting. His National Provider Identifier (NPI) number is 1114214004. Appointment can be made via the phone number (641) 672-3100. He is affiliated with 1 practices and 1 hospitals.
Conditions treated
Dr. Nickolas Samuel Demark, being an hospitalist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Nickolas S. Demark.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. Nickolas S. Demark
Insurances Accepted by Dr. Nickolas S. Demark
- Medicare
Medicare Enrollment
Dr. Nickolas S. Demark is enrolled to bill Medicare as a Practitioner - Internal Medicine (also registered under: Practitioner - Hospice/palliative Care) .
Bills through: Mahaska County Hospital
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.
Payments received
Drug payment
| GlaxoSmithKline | $22 |
| Boehringer Ingelheim | $14 |
Other
| Food and Beverage | $37 |
Studies
Graduated in 2011Additional Specialities
- Internist
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Questions & Answers
What conditions does Dr. Nickolas Samuel Demark treat?
Dr. Nickolas Samuel Demark provides treatment for Anemia, Bladder Control, Chest Pain, Diarrhea, Heart Disease, Nausea and Vomiting. For the full list see this list.
Where can you meet with Dr. Nickolas Samuel Demark?
Dr. Nickolas Samuel Demark's office is located at 1229 C Avenue East in Oskaloosa, IA 52577.
Does Dr. Nickolas Samuel Demark accept patients with Medicare?
Yes, Dr. Nickolas Samuel Demark accepts patients with Medicare.
Does Dr. Nickolas Samuel Demark have affiliation with practices?
Dr. Nickolas Samuel Demark is affiliated with Berlin Neuroscience Group.
Has Dr. Nickolas Samuel Demark affiliation with hospitals?
Dr. Nickolas Samuel Demark is affiliated with BEAVER DAM COMMUNITY HOSPITAL.