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

John Largen and Associates, Inc

Organization Clinical Neuropsychologist · NPI 1336133578

John Largen and Associates, Inc provides Clinical Neuropsychologist services in Houston, Texas. Registered with an NPI since 2005.

In the registry since
2005
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1020 Holcombe Blvd Ste 1304
Houston, TX 77030-2210 Not confirmed with CMS for 19 years — call before visiting
Phone: (713) 799-2818
Fax: (713) 790-1454
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X

Record details

NPI number1336133578
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Largen — Owner · (713) 799-2818
NPI enumeratedSeptember 2, 2005
Last updated in NPPESAugust 28, 2007
Mailing address1020 Holcombe Blvd, Ste 1304, Houston, TX 77030-2210

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