Planned Parenthood is a great place for overall health.
Great Falls Plastic Surgeon can help with surgeries.
https://www.montanaplastics.com/great-falls-plastic-surgeon/
LGBTQ Lifeline
https://suicidepreventionlifeline.org/help-yourself/lgbtq/
Kristen Prewitt, DO @ Billings Clinic Heights is a Dr who does to hormones and specializes with Transgender care.
https://www.billingsclinic.com/find-a-doctor/profile/kristen-prewitt/