William Ernst, PSY.D.
NPI 1780892166 · Clinical Neuropsychologist · Freehold, NJ
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Ernst, PSY.D. is a Clinical Neuropsychologist provider in Freehold, NJ (NPI 1780892166).
Provider details
- NPI number
- 1780892166
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 35SI00409100 (NJ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2007-05-18
- Last updated
- 2010-12-28
Frequently asked questions
- What is William Ernst's NPI number?
- William Ernst's National Provider Identifier (NPI) is 1780892166, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Ernst's specialty?
- William Ernst is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is William Ernst located?
- William Ernst's practice location on file with NPPES is 495 Iron Bridge Rd Ste 8, Freehold, NJ 07728-5306.
- What is William Ernst's phone number?
- The practice phone number listed in the NPPES registry for William Ernst is (215) 262-0741.
- Does William Ernst accept Medicare?
- William Ernst is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Ernst's NPI active?
- Yes — William Ernst's NPI (1780892166) is active in the NPPES registry as of the last update on 2010-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.