Summary

Dr. Josefino Diaz is a physician specializing in internal medicine and anesthesiology with over four decades of medical experience. He earned his medical degree from St. Louis University School of Medicine and completed his residency training at Louis A. Weiss Memorial Hospital. With 43 years in practice, Dr. Diaz brings extensive expertise to his patient care. He is fluent in English.

Dr. Diaz practices at Essentia Health Saint Marys Medical Center and Essentia Health Duluth in Duluth, Minnesota. His clinical focus includes managing Type 2 diabetes in both adults and younger patients. He also treats high blood pressure and other chronic conditions. Patients have given him an average rating of 4.4 stars, reflecting their confidence in his care.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 4.4
  • 43 years of experience
  • speaks English
  • Louis A Weiss Memorial Hospital
  • 6 written reviews
  • 2 specialties
  • 7 areas of expertise
  • 2 board certifications
  • 2 hospital affiliations
  • 3 office locations
  • Male

Office Locations

Dr. Josefino Calibo Diaz has 3 locations

Essentia Health Duluth Clinic 1St Street Building

420 E 1st StDuluth, MN 55805
Mon7:00 am - 7:00 pm
Tue7:00 am - 7:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Dr. Josefino Calibo Diaz, MDDr. Michelle Xiao Song, MDDr. Colleen Mary Counihan, MDDr. Gerald Eugene Cotton, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients
4.4 
43 Years of Experience 6 Years of Experience 49 Years of Experience 66 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Mandarin, Spanish
Duluth , MNDenver , CODuluth , MNTwo Harbors , MN
Med School: St Louis University School Of Medicine Med School: UCLA's David Geffen School of Medicine Med School: University of Wisconsin at Madison Med School: Medical College of Wisconsin
Current Profile
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Insurance Plans Accepted by Dr. Josefino Calibo Diaz

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Josefino Calibo Diaz has the following 2 specialties

Specialty Expertise

Dr. Josefino Calibo Diaz has the following 7 areas of expertise

  • Anesthesiology
  • Check-up
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss

Certifications, License, & Education

43 Years Experience

MEDICAL LICENSE

Medical Doctor, Minnesota, 2026, Expired

EDUCATION & TRAINING

Residency

Louis A Weiss Memorial Hospital

Medical School

St Louis University School Of MedicineGraduated in 1983

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Frequently Asked Questions

Does Dr. Josefino Diaz accept my insurance?
You can see the insurance plans that Dr. Josefino Diaz accepts on their Vitals profile.
Where is Dr. Josefino Diaz's office located?
Dr. Josefino Diaz's office is located at 402 E 2nd St, Duluth, MN, 55805.
Is Dr. Josefino Diaz accepting new patients?
Dr. Josefino Diaz is accepting new patients on Vitals. View Dr. Josefino Diaz's profile on Vitals to make an appointment.
Does Dr. Josefino Diaz accept virtual/telehealth appointments?
Dr. Josefino Diaz has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. Josefino Diaz affiliated with?
Dr. Josefino Diaz is affiliated with Essentia Health Saint Marys Medical Center and Essentia Health Duluth.

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