Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Melannie D Nienaber, LCSW

Individual provider Clinical Social Worker · NPI 1447492566

Melannie D Nienaber, LCSW is a Clinical Social Worker in Billings, Montana. Qualified in 2003, 23 years ago. Works from 2 locations and accepts Medicare assignment. Licensed in Colorado and Montana.

Years since qualifying
23
Licensed in
CO, MT
In the registry since
2009
Specialties on file
2
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

2020 Grand Ave Ste 2
Billings, MT 59102-2679
Phone: (406) 970-3759
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2020 Grand Ave Ste 2, Billings, MT 59102-2679 — (406) 970-3759

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 38126 (MT)
Clinical Social Worker Taxonomy 1041C0700X · Licence 800 (CO)

Record details

NPI number1447492566
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedApril 3, 2009
Last updated in NPPESJanuary 20, 2021
Certification dateJanuary 20, 2021

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients15
Services billed 157 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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