Leah Diercks, LCSW
NPI 1285107953 · Clinical Social Worker · Billings, MT
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leah Diercks, LCSW is a Clinical Social Worker provider in Billings, MT (NPI 1285107953).
Provider details
- NPI number
- 1285107953
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- BBH-LCSW-LIC-36636 (MT)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 2800 10th Ave NBillings, MT 59101-0703Phone: (406) 435-6061Fax: (406) 435-6119
Registry dates
- Enumerated
- 2019-01-06
- Last updated
- 2019-01-06
Frequently asked questions
- What is Leah Diercks's NPI number?
- Leah Diercks's National Provider Identifier (NPI) is 1285107953, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leah Diercks's specialty?
- Leah Diercks is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Leah Diercks located?
- Leah Diercks's practice location on file with NPPES is 1925 Grand Ave Ste 100, Billings, MT 59102-2763.
- What is Leah Diercks's phone number?
- The practice phone number listed in the NPPES registry for Leah Diercks is (406) 780-1205.
- Does Leah Diercks accept Medicare?
- Leah Diercks is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leah Diercks's NPI active?
- Yes — Leah Diercks's NPI (1285107953) is active in the NPPES registry as of the last update on 2019-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.