Affiliated with a Castle Connolly Top Hospital
Who is Dr. Riesen, Internist in Mason City, IA?
Dr. William Riesen, MD is an Internist, who primarily practices in Mason City, IA. He is board certified. Dr. Riesen completed his residency at Univ Of Mi Hosps & Hlth Ctrs, Internal Medicine. Dr. Riesen is fluent in English, and is currently seeing new patients. Dr. Riesen’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Riesen’s office.
Where did Dr. Riesen go to medical school and complete their residency?
Residency: Univ Of Mi Hosps & Hlth Ctrs, Internal Medicine
Medical School: University of Pa Sch of Med, Philadelphia Pa
Is Dr. Riesen board certified as an Internist?
Yes, Dr. William Riesen, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Riesen speak?
Dr. Riesen and their clinical team can communicate with patients in the following languages:
English
What conditions does an Internist like Dr. Riesen typically treat?
As an Internist, Dr. Riesen 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. Riesen. 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 here.
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Upper body pain
ICD-10 Codes:
- R079: Chest pain, unspecified
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:
- Routine Adult Health Checkup
- Health Checkup
- Adult physical exam
- Annual wellness visit for adults
- General adult medical exam
ICD-10 Codes:
- Z0000: Encounter for general adult medical examination without abnormal findings
Also known as:
- Shortness of Breath
- Breathing Problems
- Difficulty breathing
- Breathlessness
- Dyspnea
ICD-10 Codes:
- R0600: Dyspnea, unspecified
Also known as:
- Arrhythmia
- Irregular heartbeat
- Heart rhythm disorder
- Cardiac dysrhythmia
ICD-10 Codes:
- I499: Cardiac arrhythmia, unspecified
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Muscle Weakness
- Muscle Disorder
- Loss of strength
- Fatigue
- Muscle fatigue
ICD-10 Codes:
- R531: Weakness
What procedures does an Internist like Dr. Riesen typically perform?
As an Internist, procedures performed by Dr. William Riesen 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
Please contact Dr. Riesen's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Riesen accept my insurance?
Dr. Riesen 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. Riesen accept in Mason City, IA?
Dr. Riesen 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 Corporation
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Federal government of the United States
Medica Group
Medical Associates
Medicare
UnitedHealth Group
Unknown
Wellmark Blue Cross Blue Shield
View All Insurances
Where is Dr. Riesen's office located?
What is Dr. Riesen's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Riesen's National Provider Identifier (NPI) number is 1548377997.
What common questions do patients ask about Dr. Riesen?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Riesen
What is Dr. William Riesen's specialty?
Dr. Riesen is a Internist near Mason City, IA.
What does an Internist do?
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.
Is this Dr. William Riesen affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Riesen 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
When to see an Internist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Internist. 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 William Riesen accepting new patients in Mason City, IA?
Yes, Dr. William Riesen is accepting new patients at this time.
Does Dr. William Riesen offer online booking?
Please contact Dr. Riesen's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with William Riesen?
Please contact Dr. Riesen's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. William Riesen have?
Dr. William Riesen is certified by the American Board of Internal Medicine.
<section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>
Connect with DR. Riesen
Mercy Emergency Physicians
1000 4th St SW
Mason City, IA 50401