Summary

Dr. Hagan graduated from the University of Tennessee Health Science Center College of Medicine in 1989. He works in Rochester, MN and 1 other location and specializes in Allergy & Immunology and Internal Medicine. Dr. Hagan is affiliated with 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.

Quick Facts

  • accepting new patients
  • 5
  • 37 years of experience
  • speaks Spanish, English
  • Mayo Clinic And Medical School
  • 1 written review
  • 2 specialties
  • 16 areas of expertise
  • 2 board certifications
  • 5 hospital affiliations
  • 4 office locations
  • Male

Office Locations

Dr. John Bryant Hagan has 4 locations

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

Olmsted Medical Center

1650 4th St SeRochester, MN 55904

Mayo Clinic Hospital Methodist Campus

201 Center St WRochester, MN 55902

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Dr. John Bryant Hagan, MDDr. Joseph Kramer Lobl, MDDr. Amos Lal, MDDr. Yasir Hussein Kabashi Abdelgadir, MD
Allergy & ImmunologyEmergency MedicineCritical Care MedicineNephrology
Accepts New Patients Accepts New Patients
37 Years of Experience 44 Years of Experience 15 Years of Experience 13 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, English
Rochester , MNPhoenix , AZRochester , MNRochester , MN
Med School: University Of Tennessee Health Science Center College Of Medicine Med School: New York Medical College Med School: Christian Medical College Med School: University Of Khartoum Faculty Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. John Bryant Hagan

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. John Bryant Hagan has the following 2 specialties

Specialty Expertise

Dr. John Bryant Hagan has the following 16 areas of expertise

  • Allergies
  • Anaphylaxis
  • Asthma
  • Desensitization
  • Drug Eruptions
  • Food Allergies
  • Hay Fever
  • Hives (Urticaria)
  • Internal Medicine
  • Itching
  • Latex Allergy (Latex Hypersensitivity)
  • Nasal Allergies
  • Nasal Allergy (Rhinitis)
  • Rash
  • Sinusitis
  • Watery Eyes

Certifications, License, & Education

37 Years Experience

MEDICAL LICENSE

Medical Doctor, Minnesota, 2026, Active

EDUCATION & TRAINING

Residency

Mayo Clinic And Medical School

Medical School

University Of Tennessee Health Science Center College Of MedicineGraduated in 1989

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Frequently Asked Questions

Is Dr. John Hagan accepting new patients?
Dr. John Hagan is accepting new patients on Vitals. View Dr. John Hagan's profile on Vitals to make an appointment.
Does Dr. John Hagan accept my insurance?
You can see the insurance plans that Dr. John Hagan accepts on their Vitals profile.
What languages does Dr. John Hagan speak?
Dr. John Hagan speaks Spanish and English.
Which hospitals is Dr. John Hagan affiliated with?
Dr. John Hagan is affiliated with 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 Hagan accept virtual/telehealth appointments?
Dr. John Hagan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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