# GAD KLEIN

GAD KLEIN is an ADHD evaluation provider with an address in NEW HYDE PARK, NY, United States.

## Details

- Address: 1991 MARCUS AVE STE 108, NEW HYDE PARK, NY, 110422058
- Phone: [516-442-2250](<tel:5164422250>)
- National Provider Identifier (NPI): 1477786325
- Credentials: PhD
- Provider type: Clinical neuropsychologist
- Source of the listing data: CMS NPI Registry, retrieved 2026-10-03, public, free

## Questions

### Where is GAD KLEIN?

GAD KLEIN is at 1991 MARCUS AVE STE 108, NEW HYDE PARK, NY, 110422058.

### How do I contact GAD KLEIN?

To contact GAD KLEIN, call 516-442-2250.

### Is GAD KLEIN accepting new patients?

That is not in the registry data. Call the phone number on the listing and ask about availability, wait times and insurance.

## Source

From [CMS NPI Registry (National Plan and Provider Enumeration System)](https://npiregistry.cms.hhs.gov/api/?version=2.1&number=1477786325), license US government public data. CMS publishes NPPES provider data for open access under its data dissemination notice., checked 2026-10-06.

Last updated October 6, 2026.

## Links

- This ADHD evaluation provider on the [web page](<https://adhdevaluations.fyi/ny/new-hyde-park/gad-klein>)
- [ADHD evaluations in NEW HYDE PARK](<https://adhdevaluations.fyi/ny/new-hyde-park/category/adhd-evaluations.md>)
- [Clinical neuropsychologists in NEW HYDE PARK](<https://adhdevaluations.fyi/ny/new-hyde-park/category/clinical-neuropsychologists.md>)
- [More ADHD evaluation providers in NEW HYDE PARK](<https://adhdevaluations.fyi/ny/new-hyde-park.md>)