Wendy Terwilliger, MA PSYCHOLOGIST
NPI 1861564569 · Psychologist · Clarion, PA
Enrolled with Medicare as Practitioner - Psychologist Billing Independently · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wendy Terwilliger, MA PSYCHOLOGIST is a Psychologist provider in Clarion, PA (NPI 1861564569).
Provider details
- NPI number
- 1861564569
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- MA PSYCHOLOGIST
- Sex
- Female
- Sole proprietor
- Yes
- License
- PS006309L (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
19 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
- 2006-11-15
- Last updated
- 2012-02-23
Frequently asked questions
- What is Wendy Terwilliger's NPI number?
- Wendy Terwilliger's National Provider Identifier (NPI) is 1861564569, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wendy Terwilliger's specialty?
- Wendy Terwilliger is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Wendy Terwilliger located?
- Wendy Terwilliger's practice location on file with NPPES is 1008 S 5th Ave, Clarion, PA 16214-8676.
- What is Wendy Terwilliger's phone number?
- The practice phone number listed in the NPPES registry for Wendy Terwilliger is (412) 370-4891.
- Does Wendy Terwilliger accept Medicare?
- Wendy Terwilliger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wendy Terwilliger's NPI active?
- Yes — Wendy Terwilliger's NPI (1861564569) is active in the NPPES registry as of the last update on 2012-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.