Courtney Miller, AGNP
Practice: Sidney Health Center
Specialty: Oncology: Nurse Practitioner
Office locations: Sidney, MT
Courtney Miller, AGNP-C, is a certified adult-gerontology nurse practitioner who sees patients at our Sidney Health Center Clinic. She has been practicing in Sidney since 2026. Board-certified by the AANPCB and an Oncology Certified Nurse (OCN), she earned her Master's degree from Maryville University. She specializes in medical oncology, cancer treatment monitoring, symptom management, chemotherapy/immunotherapy coordination, survivorship, and supportive palliative care.
Courtney Miller, AGNP-C, is a certified adult-gerontology nurse practitioner who sees patients at our Sidney Health Center Clinic. She has been practicing in Sidney since 2026. Board-certified by the AANPCB and an Oncology Certified Nurse (OCN), she earned her Master's degree from Maryville University. She specializes in medical oncology, cancer treatment monitoring, symptom management, chemotherapy/immunotherapy coordination, survivorship, and supportive palliative care.
Sidney Health Center Clinic
Sidney, MT 59270
Courtney Miller, AGNP is a nurse practitioner with Sidney Health Center, currently seeing patients at the Sidney Health Center Clinic.
Specialty
Medical Oncology
Medical School
Maryville University
St. Louis, MO
Began practicing in Sidney in:
April 2026
Specializes In/Practice Includes
• New patient consultations and follow-up care
• Symptom assessment and management
• Monitoring and management of cancer treatments and side effects
• Medication management and lab review
• Patient and family education
• Care coordination and survivorship support
• Palliative and supportive care services
Certifications
• American Academy of Nurse Practitioners Board Certification (AANPCB)
• Oncology Certified Nurse (OCN)
• Basic Live Support (BLS)
• Advanced Cardiovascular Life Support (ACLS)
• ONS/ONCC Chemotherapy Immunotherapy Certificate
Professional Memberships
• Frontier Oncology Society
• Oncology Nursing Society
• Advanced Practitioner Society for Hematology and Oncology (APSHO)

Really enjoyed seeing NP Miller for the first time. She reviewed all of my history and lab results. She was very thorough, explained everything, and answered all of my questions. I look forward to seeing her again in the future.
On time for my apt.went well.
The visit was great. She ordered blood work. The tests done that were done came back abnormal. Her assistant called but had no further instructions
Very pleasant to visit with
Very pleasant and professional.
Love her! Very knowledgeable. If she doesn't know an answer, she will find it for you.