Abigail Mertz, ANP

Family Medicine

Related Programs
Member of St. Peter's Medical Group

About Me

Abigail “Abby” Todd, ANP earned her Master’s of Science in Nursing (MSN), with a focus in Adult Gerontology Primary Care Nurse Practitioner (AGPCNP-BC) from Marquette University in Milwaukee, WI. She obtained a Bachelor of Science in Nursing (BSN) with a focus in Health Promotion and Health Behavior from Oregon State University in Corvallis. Before becoming a Nurse Practitioner, Abby was a Registered Nurse Case Manager for the Home Health department at St. Peter’s Hospital.

Abby is certified as an Adult Gerontology Primary Care Nurse Practitioner with the American Nurses Credentialing Center and a Certified Nurse Practitioner (CNP) with the Montana Board of Nursing. She has served on various committees including St. Peter’s Hospital's Re-admissions Reduction Work Group. She is also a member of the American Association of Nurse Practitioners, the Sigma Theta Tau International Honor Society of Nursing, and a member of the Pat Barnes Chapter of Trout Unlimited. Abby enjoys fly fishing, hiking, and spending time with her family, friends and black lab “Rio.”

Education & Training

Post Graduate

Marquette University


Columbia Hospital - Milwaukee

Board Certifications

American Nurses Credentialing Center


St. Peter’s Health accepts most major insurances. To verify that your insurance is accepted, contact the clinics’ Central Business Office at 406-447-2828.   

Patients are expected to furnish all the necessary health insurance information and sign the medical release and insurance assignment authorizations. St. Peter’s Health will submit complete insurance claims on the appropriate forms for the charges recorded. 

Keep in mind that insurance is a contract between the patient and his or her insurance company and that St. Peter’s Health is acting only as a billing agent. St. Peter’s Health cannot pursue payment from insurance carriers in the event of non-payment or benefit denials. If a patient’s insurance carrier has not submitted payment within 30 days of billing, St. Peter’s Health expects the patient to pay the balance in full. Patients receive a monthly statement showing any account activity and the remaining balance due.