Registry data as of Aug 27, 2026

Theron Liddell, PH.D.

Psychologist · Harlingen, TX

Theron Liddell, PH.D. is a psychologist with a practice address in Harlingen, Texas, and NPI 1528515939, issued on Sep 1, 2016. Check the license with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1528515939
Name
Theron Liddell
Credential
PH.D.
Primary taxonomy
Psychologist 103T00000X
Practice location
2106 Treasure Hills Blvd, Harlingen, TX 78550
Phone
(956) 366-4500
Enumerated
Sep 1, 2016
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 2106 Treasure Hills Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maria AlcantaraLicensed Vocational Nurse1316785850
  2. Noelito Alog, RNGeneral Practice Registered Nurse1811735335
  3. Emma Alvarado, LVNLicensed Vocational Nurse1013754175
  4. Marisol Alvarado, LVNLicensed Vocational Nurse1700616596
  5. Samantha AmbrizRegistered Nurse1598696205
  6. Norma Arismendi, LMSW-IPRSocial Worker1871911503

Verify Theron Liddell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Bills Medicare through 2 group practices

  1. Midwestern UniversityGlendale, AZ
  2. St Vincent HospitalSanta Fe, NM

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Psychologist providers in Texas

There are 2,141 psychologist records in Texas.

Other psychologist records in Texas

  1. H Aaron, PHDHelotes, TX1780786426
  2. Lana Aaron-Snear, PHDProsper, TX1285911248
  3. Ramona Aarsvold, PH.D.Austin, TX1528113958
  4. Katie Abbate, LPAKaty, TX1508792367
  5. Donna Abbott, PH.D.Irving, TX1881773794
  6. Karen Abbott, LMSW ACPHouston, TX1740257294
  7. Marcia Abbott, PH.D.Lubbock, TX1558360958
  8. Catherine Abrahamson, PHDKaty, TX1558988030
  9. Barbara Abrams, ED.D.Houston, TX1326195793
  10. April Abrego, MASan Antonio, TX1457702185

Common questions

What is Theron Liddell, PH.D.'s NPI number?

Theron Liddell, PH.D.'s National Provider Identifier (NPI) is 1528515939, issued on Sep 1, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Theron Liddell, PH.D. located?

The NPPES record lists a practice address at 2106 Treasure Hills Blvd, Harlingen, TX, 78550. Phone: (956) 366-4500. Providers update this record themselves, so call before visiting.

How can I verify Theron Liddell, PH.D.'s license?

Search the Texas board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments, the HHS-OIG exclusion list) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.