Gad E. Klein, PHD
Clinical Neuropsychologist · New Hyde Park, NY
Gad E. Klein, PHD is a clinical neuropsychologist with a practice address in New Hyde Park, New York, and NPI 1477786325, issued on Aug 26, 2009. Check the license (New York 018221, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gad E. Klein
- Credential
- PHD
- Primary taxonomy
- Clinical Neuropsychologist 103G00000X
- License number
- 018221 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1991 Marcus Ave Ste 108, New Hyde Park, NY 11042
- Phone
- (516) 442-2250
- Enumerated
- Aug 26, 2009
- Record last updated
- Aug 26, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20091007000107); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical neuropsychologist records → All 424 in New York → Look up another NPI →
Also registered at 1991 Marcus Ave Ste 108
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amato Iannelli, CNIMElectroneurodiagnostic Specialist/Technologist1255788741
- Riddhi Marjadi, CNIMSurgical Technologist1689927246
- Steven Paniccioli, CNIMElectroneurodiagnostic Specialist/Technologist1447582358
Verify Gad E. Klein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 018221Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 84.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- New York UniversityEast Meadow, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gad E. Klein among 424 clinical neuropsychologist records in New York
Gad E. Klein, PHD is one of 424 clinical neuropsychologist records with a practice address in New York. 26% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 45% of them.
- NPI issued2009 · 45% of these records are older, 51% newer
- In a Medicare fileYes · 26% of these records are
- In the CMS Doctors and Clinicians fileYes · 33% of these records are
- Graduated2000 · median 2007 among the 139 with a school on file
- Record last updated2009 · 67% 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 York 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 York
There are 424 clinical neuropsychologist records in New York.
All 424 in New York → Every provider in New Hyde Park → Clinical Neuropsychologist nationwide →
The 8 clinical neuropsychologist records with the nearest ZIP codes
- Gennaro Dicarlo, PSYDNew Hyde Park, NY 110421497199533
- Sarah Schaffer, PH.D.New Hyde Park, NY 110401346449782
- Kayla Arleo, PHDManhasset, NY 110301174181382
- John Lazar, PH.D.Manhasset, NY 110301114086121
- William Matos, MDManhasset, NY 110301992875041
- Paul Mattis, PHDManhasset, NY 110301114066792
- Erica MeltzerManhasset, NY 110301023505435
- Kathryn Mirra, PHDManhasset, NY 110301720373657
Common questions
What is Gad E. Klein, PHD's NPI number?
Gad E. Klein, PHD's National Provider Identifier (NPI) is 1477786325, issued on Aug 26, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Gad E. Klein, PHD located?
The NPPES record lists a practice address at 1991 Marcus Ave Ste 108, New Hyde Park, NY, 11042. Phone: (516) 442-2250. Providers update this record themselves, so call before visiting.
How can I verify Gad E. Klein, PHD's license?
NPPES lists New York license number 018221, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
What is Gad E. Klein, PHD's MIPS final score?
The 2023 MIPS final score is 84.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.