Deborah Nelles, LCSW LAC PC
NPI 1619903267 · Addiction (Substance Use Disorder) Counselor · Helena, MT
Deborah Nelles, LCSW LAC PC is a Addiction (Substance Use Disorder) Counselor provider in Helena, MT (NPI 1619903267).
Provider details
- NPI number
- 1619903267
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- LCSW LAC PC
- Sex
- Female
- License
- 52
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2006-06-24
- Last updated
- 2025-09-11
Frequently asked questions
- What is Deborah Nelles's NPI number?
- Deborah Nelles's National Provider Identifier (NPI) is 1619903267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deborah Nelles's specialty?
- Deborah Nelles is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Deborah Nelles located?
- Deborah Nelles's practice location on file with NPPES is 510 Leslie Ave, Helena, MT 59601.
- What is Deborah Nelles's phone number?
- The practice phone number listed in the NPPES registry for Deborah Nelles is (406) 442-9978.
- Is Deborah Nelles's NPI active?
- Yes — Deborah Nelles's NPI (1619903267) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.