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Dr. Katherine A. Berefford, MD

Sleep Medicine

  • (218) 786-3993

Dr. Berefford's Overview

Dr. Katherine A. Berefford graduated from the University of Minnesota Medical School at Minneapolis in 2007. She works in Duluth, MN and specializes in Sleep Medicine. Dr. Berefford is affiliated with Essentia Health Saint Marys Medical Center and Essentia Health-Duluth. She speaks English and Spanish.

Gender: Female

Languages Spoken: English, Spanish

Dr. Berefford's Experience

Years in Practice: 8

Conditions Treated by Dr. Berefford

Procedures Performed by Dr. Berefford

  • Not Available

Dr. Berefford's Specialties

Sleep Medicine

Dr. Berefford's Education & Training

Medical School: University of Minnesota Medical School at Minneapolis; Graduated 2007

Dr. Berefford's Accepted Insurance

  • Aetna Choice POS II
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • Anthem Blue Access PPO
  • Anthem Blue Preferred HMO
  • Anthem Blue Preferred Plus POS
  • BCBS Blue Card PPO
  • BCBS MN Blue Cross Accord
  • First Health PPO
  • View More

Dr. Berefford's Office Information & Appointments

Office Locations

Essentia Health Emergency Medicine
Essentia Health Duluth Clinic Pulmonary Sleep Medicine

400 E 3rd St Fl 3
Duluth, MN 55805
(218) 786-3993


Office Hours and Information

Fax: (218) 726-5990

Practice Website:

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

Monday 8:00 AM - 4:00 PM
Tuesday 8:00 AM - 4:00 PM
Wednesday 8:00 AM - 4:00 PM
Thursday 8:00 AM - 4:00 PM
Friday 8:00 AM - 4:00 PM
Saturday Closed
Sunday Closed

Other Physicians in Dr. Berefford's Practice

Office Locations