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

Dr. Mark D. Thornton, PHD, LPC-S, CSC

Individual provider Mental Health Counselor · NPI 1689063786

Dr. Mark D. Thornton, PHD, LPC-S, CSC is a Mental Health Counselor in New Orleans, Louisiana. Practices as a sole proprietor. Licensed in Louisiana.

Licensed in
LA
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.

See every abbreviation used in this directory →

Practice location Address checks out

1436 Athis St
New Orleans, LA 70122-2028
Phone: (504) 258-6188
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 2914S (LA)

Record details

NPI number1689063786
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD , LPC-S , CSC
Sole proprietorYes
NPI enumeratedJanuary 13, 2015
Last updated in NPPESJanuary 13, 2015

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