John Largen, PHD
Clinical Neuropsychologist · Houston, TX
John Largen, PHD is a clinical neuropsychologist with a practice address in Houston, Texas, and NPI 1265425466, issued on Aug 24, 2005. Check the license (Texas 22321, as entered in NPPES) with the Texas board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Largen
- Credential
- PHD
- Primary taxonomy
- Clinical Neuropsychologist 103G00000X
- License number
- 22321 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1020 Holcombe Blvd, Houston, TX 77030
- Phone
- (713) 799-2818
- Enumerated
- Aug 24, 2005
- Entity
- Type 1 · individual
Also registered at 1020 Holcombe Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Souradeep BhattacharyaStudent in an Organized Health Care Education/Training Program1518808567
- Rajashekher Bolla, PTPhysical Therapist1265764864
- Elizabeth Fowler, EDDClinical Psychologist1932253325
- Rohan GuptaStudent in an Organized Health Care Education/Training Program1245199017
- Christine LannonStudent in an Organized Health Care Education/Training Program1336906254
- Zachary MendozaStudent in an Organized Health Care Education/Training Program1336940048
Verify John Largen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 22321Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Clinical Neuropsychologist providers in Texas
There are 379 clinical neuropsychologist records in Texas. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other clinical neuropsychologist records in Texas
- Tara Abbott, PHDRed Rock, TX1033851944
- Huda Abu-Suwa, PHDDallas, TX1255176715
- Shannon Ackal, PH.D.Houston, TX1437902798
- Douglas Allen, PHDAustin, TX1598950040
- Karen Anderson, PHDHouston, TX1003952920
- Kendra Anderson, PHDHouston, TX1477103794
- Mary Anise, PSY.D.Dallas, TX1043545510
- Ana Arenivas, PHDHouston, TX1962831800
- Levi Armstrong, PSY.D.Wylie, TX1073950093
- Martha Askins, PHDHouston, TX1033255963
Common questions
What is John Largen, PHD's NPI number?
John Largen, PHD's National Provider Identifier (NPI) is 1265425466, issued on Aug 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Largen, PHD located?
The NPPES record lists a practice address at 1020 Holcombe Blvd, Houston, TX, 77030. Phone: (713) 799-2818. Providers update this record themselves, so call before visiting.
How can I verify John Largen, PHD's license?
NPPES lists Texas license number 22321, as entered by the provider. 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. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.