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

Dr. Mark Errol Hastings, PHD

Individual provider Forensic Psychologist · NPI 1811098668

Dr. Mark Errol Hastings, PHD is a Forensic Psychologist in Leesburg, Virginia. Practices as a sole proprietor. Registered with an NPI since 2006.

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

102 Heritage Way NE Ste 302
Leesburg, VA 20176-4544
Phone: (703) 771-5100
Show map & directions

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

Specialties & licences

Forensic Psychologist (primary) Taxonomy 103TF0200X

Record details

NPI number1811098668
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedSeptember 26, 2006
Last updated in NPPESSeptember 7, 2007