Overview
William Riesen is a primary care provider, practicing in Internal Medicine in Mason City, Iowa. Dr. Riesen is highly rated in 24 conditions, according to our data. His top areas of expertise are Fainting, Inappropriate Sinus Tachycardia (IST), Vertigo, Gastrostomy, and Endoscopy.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- OTHER MEDICARE
- OTHER MEDICARE PART D
- EPO
- HMO
- 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 MANAGED MEDICAID
- EPO
- HMO
- PPO
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MEDICARE MAPD
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE PART D
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE PART D
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE PDP
- EPO
- HMO
- PPO
- EPO
- HMO
- POS
- PPO
- MEDICARE DISCOUNT CARD
- MEDICARE PDP
- OTHER MEDICARE
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
- HMO
- POS
Locations
1000 4th St SW, Mason City, IA 50401
1010 4th St SW Ste 305, Mason City, IA 50401
Mercyone North Iowa Medical Center
Michael Sarik is an Internal Medicine provider in Mason City, Iowa. Dr. Sarik is highly rated in 33 conditions, according to our data. His top areas of expertise are Paroxysmal Supraventricular Tachycardia (PSVT), His Bundle Tachycardia, Atrioventricular Nodal Reentrant Tachycardia (AVNRT), Pacemaker Implantation, and Cardiac Ablation.
Patrick Dunlay is a primary care provider, practicing in Internal Medicine in Mason City, Iowa. Dr. Dunlay is highly rated in 25 conditions, according to our data. His top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Renovascular Hypertension. Dr. Dunlay is currently accepting new patients.
Office
Janice Kirsch is a primary care provider, practicing in Internal Medicine in Mason City, Iowa. Dr. Kirsch is highly rated in 26 conditions, according to our data. Her top areas of expertise are Heart Failure with Preserved Ejection Fraction (HFpEF), Sciatica, Hypertension, Colonoscopy, and Endoscopy.
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
- Distinguished
- FaintingDr. Riesen isDistinguished. Learn about Fainting.
- Inappropriate Sinus Tachycardia (IST)Dr. Riesen isDistinguished. Learn about Inappropriate Sinus Tachycardia (IST).
- VertigoDr. Riesen isDistinguished. Learn about Vertigo.
- Advanced
- Chronic CoughDr. Riesen isAdvanced. Learn about Chronic Cough.
- Chronic Obstructive Pulmonary Disease (COPD)
- Coronary Heart DiseaseDr. Riesen isAdvanced. Learn about Coronary Heart Disease.
- Familial HypertensionDr. Riesen isAdvanced. Learn about Familial Hypertension.
- Familial Neurocardiogenic SyncopeDr. Riesen isAdvanced. Learn about Familial Neurocardiogenic Syncope.
- Glucocorticoid-Remediable Aldosteronism
- Experienced
- Acute Kidney FailureDr. Riesen isExperienced. Learn about Acute Kidney Failure.
- Adrenal Insufficiency PediatricDr. Riesen isExperienced. Learn about Adrenal Insufficiency Pediatric.
- Adult Immune ThrombocytopeniaDr. Riesen isExperienced. Learn about Adult Immune Thrombocytopenia.
- Alcoholic CirrhosisDr. Riesen isExperienced. Learn about Alcoholic Cirrhosis.
- ALK-Positive Non-Small Cell Lung CancerDr. Riesen isExperienced. Learn about ALK-Positive Non-Small Cell Lung Cancer.
- Alopecia AreataDr. Riesen isExperienced. Learn about Alopecia Areata.

