Harold Duncan, PH.D.
NPI 1780691196 · Marriage & Family Therapist · Dallas, TX
Harold Duncan, PH.D. is a Marriage & Family Therapist provider in Dallas, TX (NPI 1780691196).
Provider details
- NPI number
- 1780691196
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 9278 (TX)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-01
- Last updated
- 2025-09-11
Frequently asked questions
- What is Harold Duncan's NPI number?
- Harold Duncan's National Provider Identifier (NPI) is 1780691196, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harold Duncan's specialty?
- Harold Duncan is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Harold Duncan located?
- Harold Duncan's practice location on file with NPPES is 12700 Preston Rd, Dallas, TX 75230-1864.
- What is Harold Duncan's phone number?
- The practice phone number listed in the NPPES registry for Harold Duncan is (972) 233-9199.
- Is Harold Duncan's NPI active?
- Yes — Harold Duncan's NPI (1780691196) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.