Overview
Mark Johnson is an Internal Medicine provider in Mason City, Iowa. Dr. Johnson is highly rated in 9 conditions, according to our data. His top areas of expertise are Type 2 Diabetes (T2D), Type 1 Diabetes (T1D), Maturity Onset Diabetes of the Young, and Inappropriate Sinus Tachycardia (IST).
Graduate Institution
Specialties
Licenses
Board Certifications
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
- POS
- PPO
- HMO
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- OTHER MEDICARE
- OTHER MEDICARE PART D
- EPO
- HMO
- PPO
- HMO
- MEDICARE MAPD
- MEDICARE PDP
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- POS
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- OTHER MANAGED MEDICAID
- EPO
- HMO
- PPO
- OTHER MEDICAID
- STATE MEDICAID
- MEDICARE MAPD
- 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
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- HMO
- MANAGED MEDICAID PLAN
- OTHER COMMERCIAL
- 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
910 N Eisenhower Ave, Mason City, IA 50401
1000 4th St SW, Mason City, IA 50401
Additional Areas of Focus
Dr. Johnson has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.
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.
Mercyone North Iowa Medical Center
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.
Mercyone North Iowa Medical Center
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.
Frequently Asked Questions about Dr. Mark Johnson
How do I make an appointment with Dr. Mark Johnson?
You can book an appointment with Dr. Mark Johnson by calling their office at 641-428-7799. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Dr. Mark Johnson a top-rated expert for Type 2 Diabetes (T2D)?
MediFind is an objective health platform that identifies experts based on real-world data. Dr. Mark Johnson is classified as an Distinguished expert for Type 2 Diabetes (T2D), 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. Mark Johnson specialize in?
While Dr. Mark Johnson is a Internal Medicine, they have specific expertise in Type 2 Diabetes (T2D), Type 1 Diabetes (T1D), and Maturity Onset Diabetes of the Young. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Internal Medicine.
Does Dr. Mark Johnson accept my insurance?
Dr. Mark Johnson accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 641-428-7799 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
- Distinguished
- Inappropriate Sinus Tachycardia (IST)Dr. Johnson isDistinguished. Learn about Inappropriate Sinus Tachycardia (IST).
- Maturity Onset Diabetes of the YoungDr. Johnson isDistinguished. Learn about Maturity Onset Diabetes of the Young.
- Type 1 Diabetes (T1D)Dr. Johnson isDistinguished. Learn about Type 1 Diabetes (T1D).
- Type 2 Diabetes (T2D)Dr. Johnson isDistinguished. Learn about Type 2 Diabetes (T2D).
- Advanced
- Diabetic NeuropathyDr. Johnson isAdvanced. Learn about Diabetic Neuropathy.
- HyperparathyroidismDr. Johnson isAdvanced. Learn about Hyperparathyroidism.
- HypothyroidismDr. Johnson isAdvanced. Learn about Hypothyroidism.
- ObesityDr. Johnson isAdvanced. Learn about Obesity.
- Obesity in ChildrenDr. Johnson isAdvanced. Learn about Obesity in Children.
- Experienced
- Diabetic RetinopathyDr. Johnson isExperienced. Learn about Diabetic Retinopathy.
- Empty Sella SyndromeDr. Johnson isExperienced. Learn about Empty Sella Syndrome.
- Gestational DiabetesDr. Johnson isExperienced. Learn about Gestational Diabetes.
- Hypothalamic TumorDr. Johnson isExperienced. Learn about Hypothalamic Tumor.
- Infant HyperglycemiaDr. Johnson isExperienced. Learn about Infant Hyperglycemia.
- Isolated ACTH DeficiencyDr. Johnson isExperienced. Learn about Isolated ACTH Deficiency.