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

Dr. Ralph Edwin Landefeld, PHD

Individual provider Psychologist · NPI 1073557138

Dr. Ralph Edwin Landefeld, PHD is a Psychologist in Meadville, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2006.

Licensed in
PA
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

10159 Nancy Dr
Meadville, PA 16335-6323
Phone: (724) 601-4901
Fax: (814) 336-5388
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PS002990-L (PA)

Record details

NPI number1073557138
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJune 16, 2006
Last updated in NPPESOctober 5, 2010
Mailing address10159 Nancy Dr, Meadville, PA 16335-6323

Other providers in Meadville