Sierra Thornhill, MS, BCBA, LBS
NPI 1649125816 · Behavior Analyst · Willow Grove, PA
Sierra Thornhill, MS, BCBA, LBS is a Behavior Analyst provider in Willow Grove, PA (NPI 1649125816).
Provider details
- NPI number
- 1649125816
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Credential
- MS, BCBA, LBS
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1-20-43680 (PA)
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
Under 1 yr in 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
- 2026-03-03
- Last updated
- 2026-03-03
- Certified
- 2026-03-03
Frequently asked questions
- What is Sierra Thornhill's NPI number?
- Sierra Thornhill's National Provider Identifier (NPI) is 1649125816, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Thornhill's specialty?
- Sierra Thornhill is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Sierra Thornhill located?
- Sierra Thornhill's practice location on file with NPPES is 231 Summit Ave, Willow Grove, PA 19090-2509.
- What is Sierra Thornhill's phone number?
- The practice phone number listed in the NPPES registry for Sierra Thornhill is (215) 407-3429.
- Is Sierra Thornhill's NPI active?
- Yes — Sierra Thornhill's NPI (1649125816) is active in the NPPES registry as of the last update on 2026-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.