Heather Rhiannon Irby, LCSW
Clinical Social Worker · Helena, MT
Heather Rhiannon Irby, LCSW is a clinical social worker with a practice address in Helena, Montana, and NPI 1043921190, issued on Dec 9, 2022. Check the license (Montana BBH-LCSW-LIC-55250, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Heather Rhiannon Irby
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- BBH-LCSW-LIC-55250 MT
Self-reported in NPPES; status is on the state search - Practice location
- 900 Jackson St, Helena, MT 59601
- Phone
- (406) 324-7321
- Enumerated
- Dec 9, 2022
- Record last updated
- Dec 9, 2022
- Medicare enrollment
- Enrolled (PECOS I20250314002807); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 1,589 in Montana → Look up another NPI →
Also registered at 900 Jackson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Anderson, LCSWClinical Social Worker1619245925
- Sherry Bersanti, LCPCMental Health Counselor1699845875
- Robert Brown, LCPCMental Health Counselor1346414349
- Arlena Crandell, LCSWClinical Social Worker1336114768
- Rosemary Crowley, LCSWClinical Social Worker1063570240
- Christine DalyPsychiatry Physician1649380684
Verify Heather Rhiannon Irby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license BBH-LCSW-LIC-55250Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Center For Mental HealthGreat Falls, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Heather Rhiannon Irby among 1,589 clinical social worker records in Montana
Heather Rhiannon Irby, LCSW is one of 1,589 clinical social worker records with a practice address in Montana. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 70% of them.
- NPI issued2022 · 70% of these records are older, 24% newer
- In a Medicare fileYes · 11% of these records are
- In the CMS Doctors and Clinicians fileYes · 32% of these records are
- Graduated2016 · median 2013 among the 511 with a school on file
- Record last updated2022 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
201 clinical social worker records list a practice address in Helena
They are 201 of the 1,591 NPPES records with a practice address in Helena, and 1,589 clinical social worker records in Montana.
All 1,589 in Montana → Every provider in Helena → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Barbara Belt, LCSWHelena, MT 596011275608549
- Cheryl Bouvier, LCSW RPTSHelena, MT 596011821077256
- Daniel Carlson-Thompson, LCSWHelena, MT 596011386619260
- Arlena Crandell, LCSWHelena, MT 596011336114768
- Rosemary Crowley, LCSWHelena, MT 596011063570240
- William Frawley, MSW, LCSWHelena, MT 596011578678363
- Laurie Gaffney, LCSWHelena, MT 596011265595920
- Doris Heffner, MSW LCSWHelena, MT 596011306827407
Common questions
What is Heather Rhiannon Irby, LCSW's NPI number?
Heather Rhiannon Irby, LCSW's National Provider Identifier (NPI) is 1043921190, issued on Dec 9, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Heather Rhiannon Irby, LCSW located?
The NPPES record lists a practice address at 900 Jackson St, Helena, MT, 59601. Phone: (406) 324-7321. Providers update this record themselves, so call before visiting.
How can I verify Heather Rhiannon Irby, LCSW's license?
NPPES lists Montana license number BBH-LCSW-LIC-55250, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.