William John Ernst, PSY.D.
Clinical Neuropsychologist · Freehold, NJ
William John Ernst, PSY.D. is a clinical neuropsychologist with a practice address in Freehold, New Jersey, and NPI 1780892166, issued on May 18, 2007. Check the license (New Jersey 35SI00409100, as entered in NPPES) with the New Jersey board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William John Ernst
- Credential
- PSY.D.
- Primary taxonomy
- Clinical Neuropsychologist 103G00000X
- License numbers
- 35SI00409100 NJ
PS015223 PA
Self-reported in NPPES; status is on the state search - Practice location
- 495 Iron Bridge RD Ste 8, Freehold, NJ 07728
- Phone
- (215) 262-0741
- Enumerated
- May 18, 2007
- Record last updated
- Dec 28, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (609) 424-3164
- Medicare enrollment
- Enrolled (PECOS I20040225000698); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical neuropsychologist records → All 155 in New Jersey → Look up another NPI →
Also registered at 495 Iron Bridge RD Ste 8
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lance Halpern, LPC. & SCHOOL PSYCHMental Health Counselor1184874679
- Jay Levin, PH.D, LCSWClinical Social Worker1245367796
Verify William John Ernst in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 35SI00409100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William John Ernst among 155 clinical neuropsychologist records in New Jersey
William John Ernst, PSY.D. is one of 155 clinical neuropsychologist records with a practice address in New Jersey. 38% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 27% of them.
- NPI issued2007 · 27% of these records are older, 56% newer
- In a Medicare fileNo · 38% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated2000 · median 2008 among the 79 with a school on file
- Record last updated2010 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103G00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Neuropsychologist providers in New Jersey
There are 155 clinical neuropsychologist records in New Jersey. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 155 in New Jersey → Every provider in Freehold → Clinical Neuropsychologist nationwide →
The 8 clinical neuropsychologist records with the nearest ZIP codes
- Natalie AngeloFreehold, NJ 077281750100434
- Hilary Murphy, PH.D.Wall Township, NJ 077271619496908
- Cristina Sperrazza, PSY.D.Wall Township, NJ 077271174907414
- Rashmi Rastogi, PHDMarlboro, NJ 077461225097082
- Catherine Atkins, PHDNeptune, NJ 077531437147691
- Jill Del Pozzo, PH.D.Neptune, NJ 077531265250179
- Tali FrankfortTinton Falls, NJ 077531295405181
- Megan Glenn, PSYDNeptune, NJ 077531003457672
Common questions
What is William John Ernst, PSY.D.'s NPI number?
William John Ernst, PSY.D.'s National Provider Identifier (NPI) is 1780892166, issued on May 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William John Ernst, PSY.D. located?
The NPPES record lists a practice address at 495 Iron Bridge RD Ste 8, Freehold, NJ, 07728. Phone: (215) 262-0741. Providers update this record themselves, so call before visiting.
How can I verify William John Ernst, PSY.D.'s license?
NPPES lists New Jersey license number 35SI00409100, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.