
42 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Johnson, Advanced Heart Failure and Transplant Cardiologist in Rockford, IL?
Dr. Maryl Johnson, MD is an Advanced Heart Failure and Transplant Cardiologist, who primarily practices in Rockford, IL with 2 additional practice locations. She has been practicing for over 42 years and is board certified. Dr. Johnson graduated from Baylor College of Medicine in Houston, Texas and completed her residency at Univ Iowa Hosps & Clinics, Cardiovascular Diseases; Univ Iowa Hosps & Clinics, Internal Medicine. Dr. Johnson is fluent in English, Chinese, and Spanish, and is currently seeing new patients. Dr. Johnson’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Johnson’s office at (608) 263-1530.
What are Areas of Expertise for Dr. Johnson?
Dr. Maryl Johnson, MD is a highly-rated, board-certified Advanced Heart Failure and Transplant Cardiologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Johnson empowers patients to confidently navigate their health journey, specializing in Heart Failure, Transplant Medicine-Heart, and comprehensive wellness support. Serving the Rockford, IL community, Dr. Johnson is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Johnson go to medical school and complete their residency?
Fellowship: University of Iowa Hospitals and Clinics | University of Iowa Hospital and Clinics, Iowa City, IA
Residency: Univ Iowa Hosps & Clinics, Cardiovascular Diseases; Univ Iowa Hosps & Clinics, Internal Medicine
Medical School: University Of Ia Coll Of Med- Iowa City Ia | Baylor College of Medicine in Houston, Texas
Is Dr. Johnson board certified as an Advanced Heart Failure and Transplant Cardiologist?
Yes, Dr. Maryl 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:
Chinese
English
Spanish
What conditions does an Advanced Heart Failure and Transplant Cardiologist like Dr. Johnson typically treat?
As an Advanced Heart Failure and Transplant Cardiologist, 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. Learn more about our claims-based healthcare methodology.
Also known as:
- Having a Heart Transplant
- Heart Transplantation
- Cardiac transplant
- Heart replacement surgery
- Post-heart transplant
ICD-10 Codes:
- Z941: Heart transplant status
Also known as:
- Heart Failure
- Systolic Heart Failure
- Diastolic Heart Failure
- Chronic Systolic Heart Failure
- Congestive Heart Failure
- CHF
- Cardiac Insufficiency
- Heart Failure with Reduced Ejection Fraction
- HFrEF
- Pumping Heart Failure
- Heart Failure with Preserved Ejection Fraction
- HFpEF
- Filling Heart Failure
- Long-term Systolic Heart Failure
- Chronic HFrEF
- Ongoing Pumping Heart Failure
ICD-10 Codes:
- I509: Heart failure, unspecified
- I5020: Unspecified systolic (congestive) heart failure
- I5030: Unspecified diastolic (congestive) heart failure
- I5022: Chronic systolic (congestive) heart failure
Also known as:
- Other Cardiomyopathies
- Ischemic Cardiomyopathy
- Cardiomyopathy
- Uncommon heart muscle diseases
- Rare cardiomyopathy types
- Heart Muscle Disease from Blocked Arteries
- Ischemic Heart Muscle Weakness
ICD-10 Codes:
- I428: Other cardiomyopathies
- I255: Ischemic cardiomyopathy
Also known as:
- Therapeutic Drug Monitoring
- Drug level testing
- Medication monitoring
- Therapeutic drug management
ICD-10 Codes:
- Z5181: Encounter for therapeutic drug level monitoring
What procedures does an Advanced Heart Failure and Transplant Cardiologist like Dr. Johnson typically perform?
As an Advanced Heart Failure and Transplant Cardiologist, procedures performed by Dr. Maryl Johnson may include:
- Absent Pulmonary Valve Repair
- Anomalous Coronary Artery Angiography
- Anticoagulation Management
- Aortic Stenosis Repair
- Aortic Valve Repair / Replacement
- Aortopulmonary Window Repair
- Arterial Doppler
- Balloon Septostomy
Please contact Dr. Johnson's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Johnson accept my insurance?
Dr. Johnson accepts most major insurance plans. Important: Please call our office at (608) 263-1530 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Johnson accept in Rockford, IL?
Dr. Johnson in Rockford, IL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Ascension Health
CVS Health (formerly Aetna)
DLP Marquette Holding Company
Marshfield Clinic Health System
Medicare
Molina Healthcare
State of Wisconsin
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Johnson's office located?
Dr. Maryl Johnson's Primary Practice
1340 Charles St Ste 300
Rockford, IL 61104
(608) 263-1530
Recognitions
Awards
Best Doctors in America
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 1548236581.
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. Maryl Johnson's specialty?
Dr. Johnson is a Advanced Heart Failure and Transplant Cardiologist near Rockford, IL.
What does an Advanced Heart Failure and Transplant Cardiologist do?
Specialists in Advanced Heart Failure and Transplant Cardiology are involved in both inpatient and outpatient care for patients with advanced heart failure. Their expertise spans the entire continuum of care, from evaluating candidates for high-risk cardiac surgeries, cardiac transplantation, or mechanical circulatory support, to providing pre- and post-operative management for patients undergoing heart transplants and those with mechanical support devices. They also deliver end-of-life care for patients experiencing end-stage heart failure.
Is this Dr. Maryl Johnson affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Johnson is affiliated with Uw Health University Hospital 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
When to see an Advanced Heart Failure and Transplant Cardiologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Advanced Heart Failure and Transplant Cardiologist. Explore 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 Maryl Johnson accepting new patients in Rockford, IL?
Yes, Dr. Maryl Johnson is accepting new patients at this time.
Does Dr. Maryl Johnson offer online booking?
Please contact Dr. Johnson's office at (608) 263-1530 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Maryl Johnson?
Please contact Dr. Johnson's office at (608) 263-1530 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Maryl Johnson have?
Dr. Maryl Johnson is certified by the American Board of Internal Medicine.
Other Advanced Heart Failure and Transplant Cardiologist Near Rockford, IL
FR
Cardiologist
Dr. Farhan Raza is a Cardiologist, who primarily practices in Madison, WI with 2 additional practice locations.
Madison, WI

Cardiologist
Dr. Peter Mason, MD is a Cardiologist, who primarily practices in Rockford, IL with 2 additional practice locations.
Rockford, IL
DP
Cardiologist
Dr. David Pham, MD is a Cardiologist, who primarily practices in Madison, WI with 2 additional practice locations.
Madison, WI