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

Dr. James Peter Osterhaus, PHD

Individual provider Psychologist · NPI 1306009899

Dr. James Peter Osterhaus, PHD is a Psychologist in Fairfax, Virginia. Practices as a sole proprietor. Licensed in Virginia.

Licensed in
VA
In the registry since
2008
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

3541 Chain Bridge Rd Ste 6
Fairfax, VA 22030-2793
Phone: (703) 352-0660
Fax: (703) 385-9621
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 0810002345 (VA)

Record details

NPI number1306009899
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJuly 7, 2008
Last updated in NPPESJuly 7, 2008

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