Olivia Crosby-Gagnier
NPI 1578450599 · Mental Health Counselor · West Chester, PA
Olivia Crosby-Gagnier is a Mental Health Counselor provider in West Chester, PA (NPI 1578450599).
Provider details
- NPI number
- 1578450599
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
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
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2025-06-23
- Last updated
- 2026-03-31
- Certified
- 2026-03-31
Frequently asked questions
- What is Olivia Crosby-Gagnier's NPI number?
- Olivia Crosby-Gagnier's National Provider Identifier (NPI) is 1578450599, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Olivia Crosby-Gagnier's specialty?
- Olivia Crosby-Gagnier is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Olivia Crosby-Gagnier located?
- Olivia Crosby-Gagnier's practice location on file with NPPES is 142 W Market St, West Chester, PA 19382-2930.
- What is Olivia Crosby-Gagnier's phone number?
- The practice phone number listed in the NPPES registry for Olivia Crosby-Gagnier is (610) 616-5890.
- Is Olivia Crosby-Gagnier's NPI active?
- Yes — Olivia Crosby-Gagnier's NPI (1578450599) is active in the NPPES registry as of the last update on 2026-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.