# HARALD W LETTNER PHD PA

HARALD W LETTNER PHD PA is an ADHD evaluation provider with an address in NAPLES, FL, United States.

## Details

- Address: 501 GOODLETTE RD N STE. C 104, NAPLES, FL, 341025661
- Phone: [239-434-6111](<tel:2394346111>)
- National Provider Identifier (NPI): 1508950312
- Provider type: Clinical neuropsychologist
- Source of the listing data: CMS NPI Registry, retrieved 2026-10-03, public, free

## Questions

### Where is HARALD W LETTNER PHD PA?

HARALD W LETTNER PHD PA is at 501 GOODLETTE RD N STE. C 104, NAPLES, FL, 341025661.

### How do I contact HARALD W LETTNER PHD PA?

To contact HARALD W LETTNER PHD PA, call 239-434-6111.

### Is HARALD W LETTNER PHD PA 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=1508950312), 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/fl/naples/harald-w-lettner-phd-pa>)
- [ADHD evaluations in NAPLES](<https://adhdevaluations.fyi/fl/naples/category/adhd-evaluations.md>)
- [Clinical neuropsychologists in NAPLES](<https://adhdevaluations.fyi/fl/naples/category/clinical-neuropsychologists.md>)
- [More ADHD evaluation providers in NAPLES](<https://adhdevaluations.fyi/fl/naples.md>)