Theron Liddell, PH.D.
NPI 1528515939 · Psychologist · Harlingen, TX
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theron Liddell, PH.D. is a Psychologist provider in Harlingen, TX (NPI 1528515939).
Provider details
- NPI number
- 1528515939
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Counseling Psychologist103TC1900X
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
9 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2016-09-01
- Last updated
- 2016-09-01
Frequently asked questions
- What is Theron Liddell's NPI number?
- Theron Liddell's National Provider Identifier (NPI) is 1528515939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theron Liddell's specialty?
- Theron Liddell is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Theron Liddell located?
- Theron Liddell's practice location on file with NPPES is 2106 Treasure Hills Blvd, Harlingen, TX 78550-8736.
- What is Theron Liddell's phone number?
- The practice phone number listed in the NPPES registry for Theron Liddell is (956) 366-4500.
- Does Theron Liddell accept Medicare?
- Theron Liddell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theron Liddell's NPI active?
- Yes — Theron Liddell's NPI (1528515939) is active in the NPPES registry as of the last update on 2016-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.