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

David Guion, PHD

Individual provider Clinical Psychologist · NPI 1659741171

David Guion, PHD is a Clinical Psychologist in Ashland, Virginia. Qualified in 2014, 12 years ago. Accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
12
Licensed in
VA
In the registry since
2015
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

9671 Sliding Hill Rd Ste 204
Ashland, VA 23005-7989
Phone: (804) 221-2042
Fax: (804) 258-4351
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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 0810005208 (VA)

Record details

NPI number1659741171
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedSeptember 26, 2015
Last updated in NPPESJune 9, 2026
Certification dateJune 9, 2026
Mailing address9116 Dove Creek Pl, Mechanicsville, VA 23116-2868

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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