Overview
Nickolas Demark is a Hospital Medicine provider practicing medicine in Oskaloosa, Iowa.
His clinical expertise encompasses Endoscopy and Hemorrhoidectomy.
Specialties
Licenses
Hospital Affiliations
Languages Spoken
Gender
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- OTHER MEDICAID
- STATE MEDICAID
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
1229 C Ave E, Oskaloosa, IA 52577
200 Hawkins Dr, Iowa City, IA 52242
MercyOne Des Moines Hospitalists
Andrew Zeff, MD, specializes in Internal Medicine at MercyOne Des Moines Hospitalists in Des Moines, Iowa. Dr. Zeff is highly rated in 2 conditions, according to our data. His clinical expertise encompasses Relapsing Multiple Sclerosis (RMS), Heart Failure with Preserved Ejection Fraction (HFpEF), Liver Failure, Hip Replacement, and Endoscopy. Dr. Zeff is currently accepting new patients.
MercyOne Des Moines Diabetes And Endocrinology Care (IDEC)
Pierre Theuma, MD, specializes in Endocrinology at MercyOne Des Moines Diabetes & Endocrinology Care in Des Moines, Iowa. Theuma, NP is highly rated in 61 conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Type 1 Diabetes (T1D), Thyroid Storm, and Graves Disease. Theuma, NP is currently accepting new patients.
MercyOne Des Moines Hospitalists
F. Wendell Sapanhila, MD, specializes in Internal Medicine at MercyOne Des Moines Hospitalists in Des Moines, Iowa. Dr. Sapanhila is highly rated in 2 conditions, according to our data. His clinical expertise encompasses End-Stage Renal Disease (ESRD), Heart Failure with Preserved Ejection Fraction (HFpEF), Liver Failure, Gastrostomy, and Endoscopy. Dr. Sapanhila is currently accepting new patients.
Frequently Asked Questions about Dr. Nickolas S. Demark
How do I make an appointment with Dr. Nickolas S. Demark?
You can book an appointment with Dr. Nickolas S. Demark by calling their office at 641-672-3100. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Dr. Nickolas S. Demark a top-rated expert for Endoscopy?
MediFind is an objective health platform that identifies experts based on real-world data. Dr. Nickolas S. Demark is classified as an Experienced expert for Endoscopy, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.
What conditions does Dr. Nickolas S. Demark specialize in?
While Dr. Nickolas S. Demark is a Hospital Medicine, they have specific expertise in Endoscopy, Hemorrhoidectomy. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Hospital Medicine.
Does Dr. Nickolas S. Demark accept my insurance?
Dr. Nickolas S. Demark accepts most major insurance plans, including Anthem BCBS and Cigna. We recommend calling the office directly at 641-672-3100 to verify that your specific plan is currently accepted before your visit.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Experienced
- EndoscopyDr. Demark isExperienced. Learn about Endoscopy.
- HemorrhoidectomyDr. Demark isExperienced. Learn about Hemorrhoidectomy.


