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

Dr. John P Billig, PHD, ABPP

Individual provider Clinical Psychologist · NPI 1619992658

Dr. John P Billig, PHD, ABPP is a Clinical Psychologist in Lewes, Delaware. Practices as a sole proprietor. Licensed in Delaware.

Licensed in
DE
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

26049 Kielbasa Ct
Lewes, DE 19958-7028
Phone: (612) 590-5847
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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 B1-0011405 (DE)

Record details

NPI number1619992658
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD , ABPP
Sole proprietorYes
NPI enumeratedJuly 12, 2006
Last updated in NPPESMarch 11, 2025
Certification dateMarch 11, 2025

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