Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Whitney Denay Gilkey Mathison, PHD, LPC, NCC

Individual provider Professional Counselor · NPI 1851625305

Dr. Whitney Denay Gilkey Mathison, PHD, LPC, NCC is a Professional Counselor in The Colony, Texas. Practices as a sole proprietor and works from 5 locations. Licensed in Missouri and Texas.

Licensed in
MO, TX
In the registry since
2009
Specialties on file
4
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
LPC — Licensed Professional Counselor
A licensed mental health counsellor.
NCC — National Certified Counselor
A counsellor certified by the NBCC.

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Practice location Address checks out

6805 Main St Ste 430
The Colony, TX 75056-1156
Phone: (314) 301-9895
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 7280 Nw 87th Ter Ste C210, Kansas City, MO 64153-3720 — (646) 941-7645
  • 1123 Locust St, Saint Louis, MO 63101-1103 — (314) 301-9895
  • 111 W Port Plz, Saint Louis, MO 63146-3011 — (323) 205-7088
  • 17330 Preston Rd Ste 200d, Dallas, TX 75252-6106 — (314) 301-9895

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence 2006036529 (MO)
Professional Counselor Taxonomy 101YP2500X · Licence 80868 (TX)
Mental Health Counselor Taxonomy 101YM0800X · Licence 80868 (TX)
Mental Health Counselor Taxonomy 101YM0800X · Licence 2006036529 (MO)

Record details

NPI number1851625305
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , LPC , NCC
Sole proprietorYes
NPI enumeratedSeptember 30, 2009
Last updated in NPPESDecember 16, 2025
Certification dateDecember 16, 2025

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