Holly Demarest, LAC
NPI 1275886269 · Addiction (Substance Use Disorder) Counselor · Billings, MT
Holly Demarest, LAC is a Addiction (Substance Use Disorder) Counselor provider in Billings, MT (NPI 1275886269).
Provider details
- NPI number
- 1275886269
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- LAC
- Sex
- Female
- Sole proprietor
- No
- License
- 1238 (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
13 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
- 2012-10-16
- Last updated
- 2012-10-16
Frequently asked questions
- What is Holly Demarest's NPI number?
- Holly Demarest's National Provider Identifier (NPI) is 1275886269, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Demarest's specialty?
- Holly Demarest is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Holly Demarest located?
- Holly Demarest's practice location on file with NPPES is 1231 N 29th St, Billings, MT 59101.
- What is Holly Demarest's phone number?
- The practice phone number listed in the NPPES registry for Holly Demarest is (406) 248-3175.
- Is Holly Demarest's NPI active?
- Yes — Holly Demarest's NPI (1275886269) is active in the NPPES registry as of the last update on 2012-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.