of
ND

Nickolas Demark

Dr. Demark is an internal medicine doctor in Rhinelander, WI. He is affiliated with Appleton Medical Center and 3 more hospitals.
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Conditions treated

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Top 25%
36k doctors
Top 15%
36k doctors
Top 5%
18k doctors
Dr. Demark saw more cardiovascular disease (CVD) patients than 85% of similar doctors nationwide in 2014–2018. Learn more.

Related services provided

Top 25%
24k doctors
Top 15%
24k doctors
Top 5%
12k doctors
Dr. Demark saw more heart disease patients than 85% of similar doctors nationwide in 2014–2018. Learn more.

Related services provided

Top 25%
2.0k doctors
Top 15%
2.0k doctors
Top 5%
989 doctors
Dr. Demark saw more AV block patients than 75% of similar doctors nationwide in 2014–2018. Learn more.

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Top 25%
3.1k doctors
Top 15%
3.1k doctors
Top 5%
1.6k doctors
Dr. Demark saw more heart block patients than 75% of similar doctors nationwide in 2014–2018. Learn more.

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Top 25%
9.7k doctors
Top 15%
9.7k doctors
Top 5%
4.9k doctors
Dr. Demark saw more irregular heartbeat patients than 85% of similar doctors nationwide in 2014–2018. Learn more.

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Top 25%
8.8k doctors
Top 15%
8.8k doctors
Top 5%
4.4k doctors
Dr. Demark saw more sepsis patients than 85% of similar doctors nationwide in 2014–2018. Learn more.
Top 25%
7.0k doctors
Top 15%
7.0k doctors
Top 5%
3.5k doctors
Dr. Demark saw more hyponatremia patients than 95% of similar doctors nationwide in 2014–2018. Learn more.

Related services provided

Top 25%
34k doctors
Top 15%
34k doctors
Top 5%
17k doctors
Dr. Demark saw vascular disease patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

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Top 25%
10k doctors
Top 15%
10k doctors
Top 5%
5.1k doctors
Dr. Demark saw more acute renal failure patients than 75% of similar doctors nationwide in 2014–2018. Learn more.
Top 25%
1.5k doctors
Top 15%
1.5k doctors
Top 5%
767 doctors
Dr. Demark saw more alcohol withdrawal patients than 75% of similar doctors nationwide in 2014–2018. Learn more.
Top 25%
11k doctors
Top 15%
11k doctors
Top 5%
5.7k doctors
Dr. Demark saw more kidney failure patients than 75% of similar doctors nationwide in 2014–2018. Learn more.
Top 25%
2.8k doctors
Top 15%
2.8k doctors
Top 5%
1.4k doctors
Dr. Demark saw enlarged heart patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
38k doctors
Top 15%
38k doctors
Top 5%
19k doctors
Dr. Demark saw pain patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
28k doctors
Top 15%
28k doctors
Top 5%
14k doctors
Dr. Demark saw more lung condition patients than 75% of similar doctors nationwide in 2014–2018. Learn more.

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Top 25%
3.5k doctors
Top 15%
3.5k doctors
Top 5%
1.8k doctors
Dr. Demark saw more alcoholism patients than 75% of similar doctors nationwide in 2014–2018. Learn more.
Top 25%
5.2k doctors
Top 15%
5.2k doctors
Top 5%
2.6k doctors
Dr. Demark saw more encephalopathy patients than 75% of similar doctors nationwide in 2014–2018. Learn more.
Top 25%
3.3k doctors
Top 15%
3.3k doctors
Top 5%
1.6k doctors
Dr. Demark saw clotting disorders patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
33k doctors
Top 15%
33k doctors
Top 5%
16k doctors
Dr. Demark saw digestive tract conditions patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
16k doctors
Top 15%
16k doctors
Top 5%
7.9k doctors
Dr. Demark saw more atrial fibrillation (Afib) patients than 75% of similar doctors nationwide in 2014–2018. Learn more.

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Top 25%
20k doctors
Top 15%
20k doctors
Top 5%
10k doctors
Dr. Demark saw more urinary tract infection (UTI) patients than 75% of similar doctors nationwide in 2014–2018. Learn more.

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Top 25%
6.5k doctors
Top 15%
6.5k doctors
Top 5%
3.3k doctors
Dr. Demark saw more malnutrition patients than 75% of similar doctors nationwide in 2014–2018. Learn more.
Top 25%
5.9k doctors
Top 15%
5.9k doctors
Top 5%
2.9k doctors
Dr. Demark saw drug allergies patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
2.7k doctors
Top 15%
2.7k doctors
Top 5%
1.4k doctors
Dr. Demark saw atrial flutter patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
17k doctors
Top 15%
17k doctors
Top 5%
8.3k doctors
Dr. Demark saw more pneumonia patients than 75% of similar doctors nationwide in 2014–2018. Learn more.
Top 25%
3.3k doctors
Top 15%
3.3k doctors
Top 5%
1.7k doctors
Dr. Demark saw leg ulcer patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
22k doctors
Top 15%
22k doctors
Top 5%
11k doctors
Dr. Demark saw more anxiety patients than 75% of similar doctors nationwide in 2014–2018. Learn more.

Related services provided

Top 25%
14k doctors
Top 15%
14k doctors
Top 5%
7.2k doctors
Dr. Demark saw more hemorrhage patients than 75% of similar doctors nationwide in 2014–2018. Learn more.

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Top 25%
15k doctors
Top 15%
15k doctors
Top 5%
7.7k doctors
Dr. Demark saw more heart failure patients than 75% of similar doctors nationwide in 2014–2018. Learn more.

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Top 25%
31k doctors
Top 15%
31k doctors
Top 5%
16k doctors
Dr. Demark saw diabetes patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
15k doctors
Top 15%
15k doctors
Top 5%
7.3k doctors
Dr. Demark saw more congestive heart failure (CHF) patients than 75% of similar doctors nationwide in 2014–2018. Learn more.

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Cost estimates

These ranges are network rate estimates across all the insurance plans that Dr. Demark accepts.

Note: These are just estimates. We advise verifying the exact costs with your provider.

Electrocardiogram (EKG) $77 – 380

Amino’s cost estimates are estimates of the total amount that you and your health insurance company might pay for a procedure—this is what we call the “network rate”. Our cost estimates can help you prepare for the financial impact of medical care and help you make more confident decisions about where to get treated.

Locations

Dr. Demark sees patients and can be reached at the following locations.

St Mary's Hospital
2251 N Shore Dr
Rhinelander, WI 54501
751 miles away
Ministry St Michaels Hospital of Stevens Point
900 Illinois Ave
Stevens Point, WI 54481
721 miles away

Reviews

Credentials
  • Des Moines University College of Osteopathic Medicine
    MEDICAL EDUCATION, 2011
  • Western Michigan University School of Medicine Program
    RESIDENCY

Hospital affiliations

Dr. Demark is able to admit and treat patients at the following hospitals.

  • Appleton Medical Center
    A
    Hospital safety grade (Spring 2017)
  • Ministry Saint Joseph's Hospital of Marshfield
    C
    Hospital safety grade (Spring 2017)
  • Ministry St Michaels Hospital of Stevens Point
    Hospital safety grade not available
  • St Clares Hospital of Weston
    Hospital safety grade not available

Insurance accepted

Always check coverage with your doctor’s office.

  • Aetna
  • Anthem
  • Arise Health Plan
  • Arkansas Blue Cross and Blue Shield
  • Assurant Health
  • Aultcare
  • Avera
  • Banner Health
  • Beacon Health Strategies
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • Blue Cross and Blue Shield of Alabama
  • Blue Cross and Blue Shield of Illinois
  • Blue Cross and Blue Shield of Kansas
  • Blue Cross and Blue Shield of Minnesota
  • Blue Cross and Blue Shield of Oklahoma
  • Blue Cross and Blue Shield of Rhode Island
  • Blue Cross and Blue Shield of Texas
  • Blue Shield of California
  • BlueCross BlueShield of South Carolina
  • Capital District Physicians Health Plan
  • CareFirst BlueCross BlueShield
  • Cigna
  • CommunityCare
  • CoreSource
  • Coventry Health Care
  • Cross and Blue Shield of North Carolina
  • Dean Health Plan
  • EmblemHealth
  • Evergreen Health Cooperative
  • First Choice Health
  • FirstCare Health Plans
  • Group Health Cooperative
  • Group Health Cooperative of Eau Claire
  • Group Health Cooperative of South Central Wisconsin
  • Harvard Pilgrim Health Care
  • Hawaii Medical Assurance Association
  • Health Alliance
  • Health Alliance Plan of Michigan
  • Health Net
  • HealthCare Partners
  • HealthPartners
  • HealthSCOPE Benefits
  • HealthSmart
  • Heritage Provider Network
  • Highmark Blue Cross Blue Shield
  • Hometown Health
  • Humana
  • Independence Blue Cross AmeriHealth
  • Indiana University Health Plan
  • MVP Health Care
  • Magellan Health
  • MagnaCare
  • Mayo Clinic Health Solutions
  • MedCost
  • Medica
  • Medical Mutual of Ohio
  • Medicare
  • Meritain Health
  • Midlands Choice
  • Moda Health
  • MultiPlan
  • Neighborhood Health Plan
  • Network Health Plan
  • Optima Health
  • PacificSource
  • Paramount
  • Pomco
  • PreferredOne
  • Premera Blue Cross
  • Priority Health
  • Providence Health Plan
  • Regence Blue Cross Blue Shield
  • Rocky Mountain Health Plans
  • Security Health Plan
  • Southeastern Indiana Health Organization
  • SynerMed
  • TRICARE
  • Trilogy Health Insurance
  • Tufts Health Plan
  • UPMC Health Plan
  • United Healthcare
  • Unity Health Insurance
  • ValueOptions
  • WPS Health Insurance
  • WellMed Medical Management
  • Wellmark Blue Cross and Blue Shield