Holly Slonina, LMSW-CC
NPI 1427688324 · Social Worker · Lewiston, ME
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Holly Slonina, LMSW-CC is a Social Worker provider in Lewiston, ME (NPI 1427688324).
Provider details
- NPI number
- 1427688324
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW-CC
- Sex
- Female
- Sole proprietor
- No
- License
- MC18058 (ME)
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
6 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
- 2020-01-20
- Last updated
- 2020-03-10
- Certified
- 2020-03-10
Frequently asked questions
- What is Holly Slonina's NPI number?
- Holly Slonina's National Provider Identifier (NPI) is 1427688324, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Slonina's specialty?
- Holly Slonina is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Holly Slonina located?
- Holly Slonina's practice location on file with NPPES is 100 Campus Ave Ste A&b, Lewiston, ME 04240-6040.
- What is Holly Slonina's phone number?
- The practice phone number listed in the NPPES registry for Holly Slonina is (207) 755-3434.
- Does Holly Slonina accept Medicare?
- Holly Slonina is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Holly Slonina's NPI active?
- Yes — Holly Slonina's NPI (1427688324) is active in the NPPES registry as of the last update on 2020-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.