MJ
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Johnson, Internist in Mason City, IA?
Dr. Mark Johnson, MD is an Internist, who primarily practices in Mason City, IA. He is board certified by the American Board of Internal Medicine. Dr. Johnson completed his residency at Univ Of Ne Coll Of Med, Internal Medicine. Dr. Johnson is fluent in English, and is currently seeing new patients. Dr. Johnson’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Johnson’s office.
Where did Dr. Johnson go to medical school and complete their residency?
Residency: Univ Of Ne Coll Of Med, Internal Medicine
Medical School: University Of Ia Coll Of Med- Iowa City Ia
Is Dr. Johnson board certified in Internist?
Yes, Dr. Mark Johnson, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Johnson speak?
Dr. Johnson and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Johnson treat?
As a Internist, Dr. Johnson diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Johnson. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Type 2 Diabetes with High Blood Sugar
- Type 2 Diabetes
- Diabetes Type 2
- Hyperglycemia
- Type 2 diabetes
- Diabetic Hyperglycemia
- High Blood Glucose
- High Sugar Levels
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E1165: Type 2 diabetes mellitus with hyperglycemia
- E119: Type 2 diabetes mellitus without complications
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Upper body pain
ICD-10 Codes:
- R079: Chest pain, unspecified
Also known as:
- Type 1 Diabetes with High Blood Sugar
- Type 1 Diabetes
- Diabetes Type 1
- Hyperglycemia
- Type 1 diabetes
- Diabetes Tests & Diagnosis
- Diabetic Hyperglycemia
- High Glucose in Type 1 Diabetes
- High Blood Sugar Episode
- Juvenile Diabetes
- Insulin-Dependent Diabetes
- T1D
ICD-10 Codes:
- E1065: Type 1 diabetes mellitus with hyperglycemia
- E109: Type 1 diabetes mellitus without complications
Also known as:
- Arrhythmia
- Fast Heartbeat
- Slow Heart Rate
- Atrial Fibrillation
- Irregular heartbeat
- Heart rhythm disorder
- Cardiac dysrhythmia
- Tachycardia
- Rapid heart rate
- Racing heart
- Bradycardia
- Slow Pulse
- Low Heart Rate
- Afib
- A-fib
- Irregular heart rhythm
ICD-10 Codes:
- I499: Cardiac arrhythmia, unspecified
- R000: Tachycardia, unspecified
- R001: Bradycardia, unspecified
- I4891: Unspecified atrial fibrillation
Also known as:
- Shortness of Breath
- Breathing Problems
- Difficulty breathing
- Breathlessness
- Dyspnea
ICD-10 Codes:
- R0600: Dyspnea, unspecified
- R0602: Shortness of breath
Also known as:
- Abnormal EKG
- Heart Health Tests
- Irregular Electrocardiogram
- Unusual Heart Rhythm Test
- ECG Abnormalities
ICD-10 Codes:
- R9431: Abnormal electrocardiogram [ECG] [EKG]
Also known as:
- Muscle Weakness
- Muscle Disorder
- Loss of strength
- Fatigue
- Muscle fatigue
ICD-10 Codes:
- R531: Weakness
Also known as:
- Ischemic Stroke
- Brain Attack
- Cerebral Infarction
- Brain Ischemia
ICD-10 Codes:
- I639: Cerebral infarction, unspecified
Also known as:
- Dizziness
- Dizziness and Vertigo
- Lightheadedness
- Giddiness
- Vertigo
ICD-10 Codes:
- R42: Dizziness and giddiness
Also known as:
- Migraine
- Migraine headache
- Severe headache
- Vascular headache
ICD-10 Codes:
- G43909: Migraine, unspecified, not intractable, without status migrainosus
Also known as:
- Fainting
- Syncope
- Passing out
- Collapse
ICD-10 Codes:
- R55: Syncope and collapse
Also known as:
- Pre-Procedure Heart Examination
- Pre-Surgery Cardiac Checkup
- Heart Health Assessment (Before Procedure)
- Cardiovascular Clearance Exam
ICD-10 Codes:
- Z01810: Encounter for preprocedural cardiovascular examination
Also known as:
- Fluid and Electrolyte Imbalance
- Fluid and Electrolyte Balance
- Electrolyte Disorder
- Fluid Balance Problem
ICD-10 Codes:
- E878: Other disorders of electrolyte and fluid balance, not elsewhere classified
Also known as:
- Changes in Mental State
- Mental Disorder
- Confusion
- Disorientation
- Changes in awareness
ICD-10 Codes:
- R4182: Altered mental status, unspecified
Which procedures does Dr. Johnson perform as a Internist?
As a Internist, procedures performed by an Dr. Mark Johnson may include:
- Ambulatory Care Consultation
- Annual Check Up
- Annual Physical
- Aromatherapy
- Bladder and Bowel Management
- Blood Pressure Testing
- Bowel and Bladder Management
- Certified Medical Examination for Commercial Driver / Vessel Master
For detailed information, please contact Dr. Johnson's office.
Does Dr. Johnson accept my insurance?
Dr. Johnson accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Johnson accept in Mason City, IA?
Dr. Johnson in Mason City, IA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Centene
CVS Health (formerly Aetna)
Department of Veterans Affairs
Humana
Medica
Medical Associates Health Plans
Medicare
Oscar Health Insurance Co
UnitedHealthcare
Wellmark BlueCross BlueShield
View All Insurances
Where is Dr. Johnson's office located?
What is Dr. Johnson's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Johnson's National Provider Identifier (NPI) number is 1013923127.
What common questions do patients ask about Dr. Johnson?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Johnson
What is Dr. Mark Johnson's specialty?
Dr. Johnson is a Internist near Mason City, IA.
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Contact Dr. Johnson to book an appointment today.Is this Dr. Mark Johnson affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Johnson is affiliated with Mercyone North Iowa Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Internist?
Explore Internist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Mark Johnson accepting new patients in Mason City, IA?
Yes, Dr. Mark Johnson is accepting new patients at this time.
Does Dr. Mark Johnson offer online booking?
Please contact Dr. Johnson's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mark Johnson?
Please contact Dr. Johnson's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mark Johnson have?
Dr. Mark Johnson is certified by the American Board of Internal Medicine.
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Connect with DR. Johnson
910 N Eisenhower Ave
Mason City, IA 50401