Healthy Montana Kids (HMK)

Children's Health Insurance Plan

Healthy Montana Kids (HMK), Children's Health Insurance Plan offers a free or low-cost health insurance plan  providing coverage to eligible Montana children up to age 19. Covered services include medical, dental, eyeglasses, and other related services.  Medical benefits are administered through the   Blue Cross Blue Shield (BCBS) of Montana Provider Network, except for Federally Qualified Health Centers, Rural Health Clinics, dental, pharmacy, eyeglasses, ambulance, durable medical equipment, prosthetics, orthotics, and medical supplies (DMEPOS) and Community Based Psychiatric Rehabilitation and Support Services which are administered by Montana Healthcare Programs. Treatments and services must be medically necessary and the member must be enrolled at the time the service is delivered.

HMK Member Information




The Montana Department of Health of Human Services (DPHHS) has extended coverage to postpartum women. This change will now allow postpartum women enrolled in Montana’s Medicaid and Healthy Montana Kids Programs to be eligible for 12-month continuous coverage. If you are a member and become pregnant or have any changes to your pregnancy, notify the Office of Public Assistance (OPA). Providing the most updated information on your pregnancy or postpartum status will ensure you are covered under this extension. If OPA is not notified, they will be unable to change or extend your coverage. Women that have become pregnant or had changes to a pregnancy since July 1, 2023, must report these changes to OPA via:

  • Self-service portal located at 
  • Providing a written statement of the pregnancy or changes to the local OPA office
  • Calling the Public Assistance Help Line at 1-888-706-1535 and speaking to a case worker

Member Guide  - July 2024

Proposed Evidence of Coverage- Redlined Version - Effective January 1, 2024

Evidence of Coverage- Effective January 1, 2023

Current HMK Covered Dental Codes  - Effective July 1, 2024 

Health Care Services





Durable Medical Equipment, Prosthetics, Orthotics, And Medical Supplies


HMK Member Resources

Find an HMK Enrolled Dentist

Find an HMK Healthcare Provider

Report household or income changes

Locate your local   Office of Public Assistance  or   apply for Healthcare coverage

HMK Member Contact Numbers 

Public Assistance Helpline
Office of Public Assistance contact information
(888) 706-1535

Medical Benefits
Blue Cross Blue Shield of Montana
(855) 258-3489

Pharmacy, Dental, DMEPOS, and Eyeglass Benefits
Federally Qualified Health Centers, Rural Health Clinics and Applied Behavioral Analysis
Montana Healthcare Programs, Member Helpline
(800) 362-8312