Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Andrew J Theiss, PHD

Individual provider Clinical Psychologist · NPI 1932399656

Andrew J Theiss, PHD is a Clinical Psychologist in Naples, Florida. Practices as a sole proprietor. Licensed in Florida.

Licensed in
FL
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

4501 Tamiami Trl N Ste 318
Naples, FL 34103-3060
Phone: (239) 649-7799
Fax: (239) 566-1844
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PY00005436 (FL)

Record details

NPI number1932399656
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJuly 30, 2007
Last updated in NPPESJuly 30, 2007
Mailing address4501 Tamiami Trl N, Suite 318, Naples, FL 34103-3060

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