Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John Haley, MD

Individual provider Cardiovascular Disease Physician · NPI 1912983834

John Haley, MD is registered under Cardiovascular Disease (Cardiology) in Rochester, Minnesota. Graduated from University of Minnesota Medical School in 1994, 32 years ago. Practices with Mayo Clinic Health System-Southwest Minnesota Region, a 667-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Iowa and Minnesota.

Years since qualifying
32
Trained at
University of Minnesota Medical School
Licensed in
IA, MN
In the registry since
2005
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

200 1st St SW
Rochester, MN 55905
Phone: (507) 284-2511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1025 Marsh St, Mankato, MN 56001-4752 — (507) 625-4031
  • 1025 Marsh St, Mankato, MN 56001-4752 — (507) 625-4031

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 38194 (MN)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence MD-42060 (IA)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence 38194 (MN)

Record details

NPI number1912983834
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 22, 2005
Last updated in NPPESSeptember 18, 2020
Certification dateSeptember 18, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1994 (32 years in practice)
Group practice Mayo Clinic Health System-Southwest Minnesota Region — 667 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients723
Services billed 1,348 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mayo Clinic Health System-Southwest Minnesota Region

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 667 clinicians in the practice; 12 are shown here.

Other providers in Rochester