JG
Accepting patients
Who is Dr. Grehan, Thoracic Surgeon in Sioux Falls, SD?
Dr. John Grehan, MD, PHD is a Thoracic Surgeon, who primarily practices in Sioux Falls, SD with 1 additional practice location. He is board certified by the American Board of Surgery and American Board of Thoracic Surgery. Dr. Grehan graduated from University of Minnesota Med School. Dr. Grehan is fluent in English, and is currently seeing new patients. Dr. Grehan’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Grehan’s office.
Where did Dr. Grehan go to medical school and complete their residency?
Medical School: University of Minnesota Med School
Is Dr. Grehan board certified in Thoracic Surgeon?
Yes, Dr. John Grehan, MD, PHD is board certified by the American Board of Surgery , American Board of Thoracic Surgery
What languages does Dr. Grehan speak?
Dr. Grehan and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Grehan treat?
As a Thoracic Surgeon, Dr. Grehan 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. Grehan. 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:
- Hardening of the Arteries in the Heart without Chest Pain
- Coronary Artery Disease with Angina
- Atherosclerosis
- Coronary Artery Disease
- Silent Coronary Artery Disease
- Asymptomatic Atherosclerosis
- Atherosclerotic Heart Disease with Angina
- Chest Pain from Heart Disease
- Angina Pectoris
ICD-10 Codes:
- I2510: Atherosclerotic heart disease of native coronary artery without angina pectoris
- I25118: Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
Also known as:
- Narrowed Aortic Valve
- Heart Valve Disease
- Aortic Valve Stenosis
- Tight Aortic Valve
ICD-10 Codes:
- I350: Nonrheumatic aortic (valve) stenosis
Also known as:
- Circulatory System Surgery Aftercare
- After Surgery
- Post-cardiac surgery care
- Vascular surgery aftercare
- Heart surgery recovery
ICD-10 Codes:
- Z48812: Encounter for surgical aftercare following surgery on the circulatory system
Which procedures does Dr. Grehan perform as a Thoracic Surgeon?
As a Thoracic Surgeon, procedures performed by a Dr. John Grehan may include:
- Aortic Stent Grafts
- Arteriovenous Graft Placement
- Atherectomy
- Carotid Surgery
- Endovascular Aneurysm Repair (EVAR)
- Endovenous Laser Treatment of Varicose Veins
- Limb Salvage Surgery
- Mediastinal Adenopathy Surgery
For detailed information, please contact Dr. Grehan's office.
Does Dr. Grehan accept my insurance?
Dr. Grehan 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. Grehan accept in Sioux Falls, SD?
Dr. Grehan in Sioux Falls, SD accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
CVS Health (formerly Aetna)
Express Scripts
Humana
Medica
Medicaid
Medicare
Mutual of Omaha
PrimeWest Health
UnitedHealthcare
Wellmark BlueCross BlueShield
View All Insurances
Where is Dr. Grehan's office located?
What is Dr. Grehan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Grehan's National Provider Identifier (NPI) number is 1275549784.
What common questions do patients ask about Dr. Grehan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Grehan
What is Dr. John Grehan's specialty?
Dr. Grehan is a Thoracic Surgeon near Sioux Falls, SD. A thoracic surgeon is a healthcare expert with specialization in the surgical, perioperative, and critical care of patients with conditions affecting the chest. Their expertise encompasses the surgical treatment of coronary artery disease, lung, esophageal, and chest wall cancers, tracheal abnormalities, and issues with the great vessels and heart valves. They also address congenital anomalies, mediastinal tumors, and diaphragm diseases. Additionally, thoracic surgeons manage airway issues and chest injuries as part of their medical specialty. Contact Dr. Grehan to book an appointment today.
Is this Dr. John Grehan affiliated with a ranked Castle Connolly Top Hospital?
No, Grehan is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Sanford Usd Medical Center, Avera St. Marys Hospital. Castle Connolly Top Hospitals 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 Thoracic Surgeon?
Explore Thoracic Surgeon 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 John Grehan accepting new patients in Sioux Falls, SD?
Yes, Dr. John Grehan is accepting new patients at this time.
Does Dr. John Grehan offer online booking?
Please contact Dr. Grehan's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with John Grehan?
Please contact Dr. Grehan's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. John Grehan have?
Dr. John Grehan is certified by the American Board of Surgery and American Board of Thoracic Surgery.
Other Thoracic Surgeon Near Sioux Falls, SD
KU
Thoracic Surgeon
Accepting patientsDr. Keung Ung, MD is a Thoracic Surgeon, who primarily practices in Sioux Falls, SD with 1 additional practice location. He is board certified by the American Board of Surgery and American Board of Thoracic Surgery.
Sioux Falls, SD
LW
Vascular Surgeon
Accepting patientsDr. Laura Wolf, MD is a Vascular Surgeon, who primarily practices in Sioux Falls, SD with 2 additional practice locations. She is board certified.
Sioux Falls, SD
DM
Thoracic Surgeon
Accepting patientsDr. David Maziarz, MD is a Thoracic Surgeon, who primarily practices in Sioux Falls, SD with 1 additional practice location. He has been practicing for over 20 years and is board certified by the American Board of Surgery and American Board of Thoracic Surgery.
Sioux Falls, SD