Registry data as of Aug 27, 2026

Blythe Siebenaller, LCSW, LAC

Addiction (Substance Use Disorder) Counselor · Hamilton, MT

Blythe Siebenaller, LCSW, LAC is an addiction (substance use disorder) counselor with a practice address in Hamilton, Montana, and NPI 1821440223, issued on Jul 8, 2016. Check the license with the Montana board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1821440223
Name
Blythe Siebenaller
Credential
LCSW, LAC
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
Practice location
320 N 1St St Ste G, Hamilton, MT 59840
Phone
(406) 662-1050
Enumerated
Jul 8, 2016
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 320 N 1St St Ste G

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sarah Bernhardt, LCPC,LIMHP,LMHP, LPCMental Health Counselor1235424664
  2. Kelsey Ewer, LCPCMental Health Counselor1790454890

Verify Blythe Siebenaller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Montana board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the Montana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

8 addiction (substance use disorder) counselor records list a Hamilton practice address

They are 8 of the 399 NPPES records with a Hamilton practice address, and 921 addiction (substance use disorder) counselor records in Montana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other addiction (substance use disorder) counselor records in Montana

  1. Nourah Abushaban, ACLCPoplar, MT1295656999
  2. Martha Acton, LACBillings, MT1740725787
  3. Carolyn Adams, LACPoplar, MT1912444068
  4. Julie Adams, LACCrow Agency, MT1720576358
  5. Raine Adams, LACWolf Point, MT1013342526
  6. Erin Adams-Griffin, LCSW, LACBozeman, MT1508137274
  7. Stephanie Adkins, LACBillings, MT1700402336
  8. Peter Aimsback, ACLCPolson, MT1992638589
  9. Michelle Alatorre, LACGreat Falls, MT1184453581
  10. Peggy Albee, LCPC, LAC, CRCLewistown, MT1598997561

Common questions

What is Blythe Siebenaller, LCSW, LAC's NPI number?

Blythe Siebenaller, LCSW, LAC's National Provider Identifier (NPI) is 1821440223, issued on Jul 8, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Blythe Siebenaller, LCSW, LAC located?

The NPPES record lists a practice address at 320 N 1St St Ste G, Hamilton, MT, 59840. Phone: (406) 662-1050. Providers update this record themselves, so call before visiting.

How can I verify Blythe Siebenaller, LCSW, LAC's license?

Search the Montana board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.