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

Richard David Johnson, PHD

Individual provider Psychologist · NPI 1588699847

Richard David Johnson, PHD is a Psychologist in Chester, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
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

1315 Lehmen Dr Chester Mental Health Ctr
Chester, IL 62233-2542
Phone: (618) 826-4571
Fax: (618) 826-3229
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X (IL)

Record details

NPI number1588699847
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJuly 12, 2006
Last updated in NPPESJuly 9, 2007
Mailing address1315 Lehmen Dr, Po Box 31 Chester Mental Health Center, Chester, IL 62233-2542