Internal Medicine | Northfield Hospital & Clinics


Complete Care for Adults  – Internal Medicine

Internal medicine doctors (Internists) help with whatever problem a patient has  - no matter how common or rare,  how simple or complex. We are specially trained to solve puzzling health problems, and can treat severe chronic illnesses as well as situations where several different illnesses may strike at the same time. We also bring an understanding of wellness and disease prevention to your care. 

Caring for the Whole Patient 

An Internist is an expert in  diagnosis, treatment, and compassionate care of adults, including  the elderly. We provide long-term, comprehensive care in the clinic and in the hospital. Internists have advanced training to diagnosis and treat complex medical problems and  manage  chronic diseases. We take pride in building a positive, supportive relationship with you. 

Conditions We Treat:

Chronic diseases such as:

  • Abnormal heart rhythms (like atrial fibrillation)
  • Anticoagulation management
  • Arthritis
  • Asthma
  • COPD/Emphysema
  • Dementia/Cognitive Impairment
  • Diabetes
  • Heart disease
  • Heart failure
  • Hypertension (high blood pressure)

Acute illness such as:

  • Abdominal pain
  • Allergies
  • Bowel issues
  • Cellulitis
  • Cold and flu symptoms
  • Diverticulitis
  • Headaches
  • Infectious problems
  • Joint pain
  • Nausea/Vomiting
  • Pneumonia
  • Rashes
  • Sinus and ear infections
  • Stomach problems
  • Urinary tract and bladder infections

Care Team - Top Doctors & Providers

Helgen, Katherine, MD, FACP

Internal Medicine

Reister, Randolph, MD, FACP

Emergency Medicine, Urgent Care, Endoscopy, Internal Medicine


Farmington Clinic

(651) 460-2300
(651) 460-2301
Monday 7:00 a.m. to 7 p.m.
Tuesday - Friday 7:00 a.m. to 5 p.m.
4645 Knutsen Drive, Farmington, Minnesota 55024
Farmington Clinic Building Entrance

Northfield Clinic

(507) 646-1494
(507) 646-6870
Monday 7:30 a.m. to 7 p.m.
Tuesday 7:30 a.m. to 8 p.m.
Wednesday - Friday 7:30 a.m. to 5 p.m.
2000 North Avenue, Northfield, Minnesota 55057
Primary Care and Family Medicine Clinic at  Northfield Hospital Building , Northfield MN