5
4 Ratings with 1 written Review
Summary
Dr. John Haley is a cardiologist specializing in cardiovascular disease, interventional cardiology, and nuclear medicine. He earned his medical degree from the University of Minnesota Medical School and completed his residency at Mayo Clinic and Medical School. With 32 years of experience in cardiac care, Dr. Haley speaks English.
Dr. Haley practices at Mayo Clinic Health System locations in Mankato and Rochester, Minnesota, with affiliations including Mayo Clinic Hospital Methodist Campus and Saint Marys Campus. He treats patients with heart rhythm disorders such as bradycardia and cardiac arrhythmia. His diagnostic services include Holter monitoring for continuous heart rhythm assessment and blood tests to evaluate cardiac health. Patients rate Dr. Haley 5.0 out of 5 on Vitals.
Dr. Haley practices at Mayo Clinic Health System locations in Mankato and Rochester, Minnesota, with affiliations including Mayo Clinic Hospital Methodist Campus and Saint Marys Campus. He treats patients with heart rhythm disorders such as bradycardia and cardiac arrhythmia. His diagnostic services include Holter monitoring for continuous heart rhythm assessment and blood tests to evaluate cardiac health. Patients rate Dr. Haley 5.0 out of 5 on Vitals.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 32 years of experience
- speaks English
- Mayo Clinic And Medical School
- 1 written review
- 3 specialties
- 7 areas of expertise
- 3 board certifications
- 7 hospital affiliations
- 4 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. John Hardwick Haley has 4 locationsMayo Clinic Health System In Mankato
1025 Marsh StMankato, MN 56001 Tel: (507) 625-4031
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Mayo Clinic
200 1st St SwRochester, MN 55905 Tel: (507) 284-2511
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  | |
| Dr. John Hardwick Haley, MD | Dr. John Edward Bernhardson, MD | Dr. John Frank Genter | Dr. Hugo Jose Macchi Cattoni SR. |
| Cardiovascular Disease | Internal Medicine | Cardiovascular Disease | Cardiovascular Disease |
| Accepts New Patients | Accepts New Patients | ||
| 32 Years of Experience | 44 Years of Experience | 48 Years of Experience | 12 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English, Spanish | ||
| Mankato , MN | Sleepy Eye , MN | Mankato , MN | Mankato , MN |
| Med School: University Of Minnesota Medical School | Med School: University Of Nebraska College Of Medicine | Med School: University Of Illinois At Chicago College Of Medicine | Med School: Univ Catolica Nuestra Senora De La Asuncion Fac De Ciencias Asuncion |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John Hardwick Haley
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. John Hardwick Haley has the following 3 specialties
Specialty Expertise
Dr. John Hardwick Haley has the following 7 areas of expertise
Certifications, License, & Education
32 Years Experience
Dr. John Hardwick Haley holds an expired medical license in the state of Minnesota.
Medical License
Medical Doctor with an expired medical license in the state of Minnesota that expired in 2026.
Education & Training
Residency
Completed their residency at Mayo Clinic And Medical School.
Medical School
Graduated from University Of Minnesota Medical School in 1994.
NPI Number
Dr. Haley's NPI number is 1912983834.
Similar doctors
Frequently Asked Questions
- Is Dr. John Haley accepting new patients?
- Dr. John Haley is accepting new patients on Vitals. View Dr. John Haley's profile on Vitals to make an appointment.
- Does Dr. John Haley accept my insurance?
- You can see the insurance plans that Dr. John Haley accepts on their Vitals profile.
- Which hospitals is Dr. John Haley affiliated with?
- Dr. John Haley is affiliated with MAYO CLINIC HEALTH SYSTEM FAIRMONT, Mayo Clinic Health System In Mankato, Mayo Clinic Hospital Methodist Campus, Mayo Clinic Hospital Saint Marys Campus, Mayo Clinic Health Systems Austin, Olmsted Medical Center, and Mayo Eugenio Litta Childrens Hospital.
- What languages does Dr. John Haley speak?
- Dr. John Haley speaks English.
- Where is Dr. John Haley's office located?
- Dr. John Haley's office is located at 1025 Marsh St, Mankato, MN, 56001.
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.
