Summary

Dr. John Haley is a cardiovascular disease specialist with additional expertise in interventional cardiology and nuclear medicine. He earned his medical degree from the University of Minnesota Medical School and completed his residency training at Mayo Clinic and Medical School. With 32 years of experience in cardiology, Dr. Haley brings extensive knowledge to his practice. He speaks English with his patients.

Dr. Haley is affiliated with multiple Mayo Clinic locations, including Mayo Clinic Health System in Mankato and facilities in Rochester, Minnesota. He focuses on treating conditions such as chronic kidney disease, coronary artery disease, and heart disease specifically affecting women. His procedural expertise includes contrast echocardiography and transthoracic echocardiograms to evaluate heart function, along with specialized blood testing. Patients rate Dr. Haley 5.0 out of 5 stars on average.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 5
  • 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

Office Locations

Dr. John Hardwick Haley has 4 locations

Mayo Clinic Health System In Mankato

1025 Marsh StMankato, MN 56001
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
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 Hospital Saint Marys Campus

1216 2nd St SwRochester, MN 55902

Mayo Clinic Hospital Methodist Campus

201 Center St WRochester, MN 55902

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Dr. John Hardwick Haley, MDDr. Daniel Joseph Beissel, MDDr. Manpreet Kanwar, MDNatalie Ann Hoppe
Cardiovascular DiseaseCardiovascular DiseaseCardiovascular DiseaseNurse Practitioner
Accepts New Patients Accepts New Patients Accepts New Patients
32 Years of Experience 18 Years of Experience 28 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish Speaks English
Mankato , MNMinneapolis , MNMankato , MNMankato , MN
Med School: University Of Minnesota Medical School Med School: University Of Illinois At Chicago College Of Medicine Med School: Government Medical College Patiala
Current Profile
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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

  • Acute Coronary Syndrome (ACS)
  • Heart Block
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Interventional Cardiology
  • Nuclear Medicine
  • Unstable Angina

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.

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Frequently Asked Questions

Where is Dr. John Haley's office located?
Dr. John Haley's office is located at 1025 Marsh St, Mankato, MN, 56001.
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.
Does Dr. John Haley accept virtual/telehealth appointments?
Dr. John Haley has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. John Haley accept my insurance?
You can see the insurance plans that Dr. John Haley accepts on their Vitals profile.
How can I make an appointment with Dr. John Haley?
You can find contact information for Dr. John Haley here on Vitals.

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