Abbigail Mellum, B.S, LAC
NPI 1780042804 · Addiction (Substance Use Disorder) Counselor · Billings, MT
Abbigail Mellum, B.S, LAC is a Addiction (Substance Use Disorder) Counselor provider in Billings, MT (NPI 1780042804).
Provider details
- NPI number
- 1780042804
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- B.S, LAC
- Sex
- Female
- Sole proprietor
- Yes
- License
- BBH-LAC-LIC-16223 (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
10 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
- 2016-02-03
- Last updated
- 2025-04-22
- Certified
- 2025-04-22
Frequently asked questions
- What is Abbigail Mellum's NPI number?
- Abbigail Mellum's National Provider Identifier (NPI) is 1780042804, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Abbigail Mellum's specialty?
- Abbigail Mellum is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Abbigail Mellum located?
- Abbigail Mellum's practice location on file with NPPES is 208 N Broadway, Billings, MT 59101-3988.
- What is Abbigail Mellum's phone number?
- The practice phone number listed in the NPPES registry for Abbigail Mellum is (406) 794-2003.
- Is Abbigail Mellum's NPI active?
- Yes — Abbigail Mellum's NPI (1780042804) is active in the NPPES registry as of the last update on 2025-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.