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

Dr. Harold D Duncan, PHD

Individual provider Professional Counselor · NPI 1780691196

Dr. Harold D Duncan, PHD is a Professional Counselor in Dallas, Texas. Practices as a sole proprietor. Licensed in Texas.

Licensed in
TX
In the registry since
2006
Specialties on file
2
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

12700 Preston Rd Ste 150
Dallas, TX 75230-1864
Phone: (972) 233-9199
Fax: (972) 233-9799
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 3810 (TX)
Professional Counselor Taxonomy 101YP2500X · Licence 9278 (TX)

Record details

NPI number1780691196
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedAugust 1, 2006
Last updated in NPPESSeptember 11, 2025

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