Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Donald J. Hagler Sr., MD

Individual provider Pediatric Cardiology Physician · NPI 1942206016

Dr. Donald J. Hagler Sr., MD is a Pediatric Medicine in Rochester, Minnesota. Graduated from Saint Louis University School of Medicine in 1968, 58 years ago. Practices with Mayo Clinic Health System-Southwest Minnesota Region, a 667-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona and Minnesota.

Years since qualifying
58
Trained at
Saint Louis University School of Medicine
Licensed in
AZ, 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 55905-0001
Phone: (507) 284-2511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 13400 E Shea Blvd, Scottsdale, AZ 85259-5452 — (480) 301-8000

Specialties & licences

Pediatric Cardiology Physician (primary) Taxonomy 2080P0202X · Licence 21039 (MN)
Pediatric Cardiology Physician Taxonomy 2080P0202X · Licence 24809 (AZ)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 21039 (MN)

Record details

NPI number1942206016
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2005
Last updated in NPPESSeptember 29, 2020
Certification dateSeptember 29, 2020

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1968 (58 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

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