Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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MS. Heather Rhiannon Irby, LCSW

Individual provider Clinical Social Worker · NPI 1043921190

MS. Heather Rhiannon Irby, LCSW is a Clinical Social Worker in Helena, Montana. Qualified in 2016, 10 years ago. Practices with Center for Mental Health, a 14-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
10
Licensed in
MT
In the registry since
2022
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

900 Jackson St
Helena, MT 59601-3428
Phone: (406) 324-7321
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence BBH-LCSW-LIC-55250 (MT)

Record details

NPI number1043921190
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedDecember 9, 2022
Last updated in NPPESDecember 9, 2022
Certification dateDecember 9, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Center For Mental Health — 14 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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