Frontier Psychiatry
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Tammy McCallum

Tammy McCallum
Insurance Eligibility Specialist

Tammy joins us an Insurance Eligibility Specialist, ensuring our patients are aware of their insurance coverages and that no surprise bills pop up. She has lived most of her life in Billings, Montana and has two children and two grandchildren. She is proud to have been married to the same man for 35 years and would love to retire to Phoenix, Arizona.
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Frontier Psychiatry PLLC
Call: (406) 200-8471
Fax: (833) 465-3766
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  • About
    • Our story
    • Our Team
    • In the Media
    • Careers
    • Contact
  • Patients
    • Current Patients >
      • Pre-Appointment Checklist
      • Patient Forms
      • Patient FAQ
      • Other Resources
    • Services >
      • Adult Psychiatry
      • Child & Adolescent Psychiatry
      • Neuropsychiatry & Memory Care
      • Addiction Psychiatry
      • Counseling Access for MT Ag
  • Organizations
    • Services
    • Partner Scheduling
    • Virtual Waiting Room
    • Resources >
      • Medical Education
      • Research Studies
  • Refer a Patient
  • Patient Portal
  • Partner Scheduling
  • Schedule an Appointment