Doctor profile · Federal record
Dr. John Largen, PHD
Clinical Neuropsychologist (CMS: Clinical Psychologist) · Houston, TX
- NPI 1265425466
- Accepts Medicare
- 46 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1020 Holcombe Blvd, Ste 1304
Houston, TX 770302210
(713) 799-2818
fax (713) 790-1454
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- August 28, 2007
- Year of graduation
- 1980 — 46 yrs since
- Specialty taxonomy
- 103G00000X — NUCC code
- State license (1)
- Texas #22321
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1265425466. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
220
Distinct HCPCS
5
Medicare allowed
$15,545
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
96139 |
Administration of psychological or neuropsychological test by technician, each additional 30 minutes | 89 | 19 | $35 | |
96133 |
Evaluation of neuropsychological test, each additional hour | 67 | 23 | $100 | |
96132 |
Evaluation of neuropsychological test, first hour | 23 | 23 | $131 | |
96116 |
Exam of neurobehavioral status, first hour | 22 | 22 | $94 | |
96138 |
Administration of psychological or neuropsychological test by technician, first 30 minutes | 19 | 19 | $34 |
In context: peer comparison
Among 18 peers in Houston Clinical Neuropsychologist, average services per provider: 144. This provider delivers 1.5× the peer median.Frequently asked questions
What is Dr. John Largen's medical specialty?
Dr. John Largen practices Clinical Neuropsychologist in Houston, TX.
Where does Dr. John Largen practice?
Dr. John Largen practices at 1020 Holcombe Blvd, Houston, TX 770302210. Office phone: 7137992818.
What is Dr. John Largen's NPI?
Dr. John Largen's National Provider Identifier (NPI) is 1265425466, issued by NPPES.
Does Dr. John Largen accept Medicare assignment?
Yes. Dr. John Largen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Largen commonly perform?
Top Medicare-reported procedures in 2023: Administration of psychological or neuropsychological test by technician (HCPCS 96139); Evaluation of neuropsychological test, each additional hour (HCPCS 96133); Evaluation of neuropsychological test, first hour (HCPCS 96132). Source: CMS Medicare Physician & Other Practitioners file.