DR. JOHN W JR. LARGEN (PHD) – Clinical Neuropsychologist, NPI 1265425466
Clinical Neuropsychologist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,347 CLINICAL PSYCHOLOGIST in TX
Loading map...
Provider Addresses for DR. JOHN W JR. LARGEN (PHD)
Holcombe Boulevard, Houston, Harris County, Texas, 77021, United States
STE 1304
HOUSTON, TX 770302210
Phone: (713) 799-2818
Fax: (713) 790-1454
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-08-11
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100811000282 | I | Clinical Psychologist | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 96139 | Administration of psychological or neuropsychological test by technician, each additional 30 minutes | 89 | 19 | $0 |
| 96133 | Evaluation of neuropsychological test, each additional hour | 67 | 23 | $0 |
| 96132 | Evaluation of neuropsychological test, first hour | 23 | 23 | $0 |
| 96116 | Exam of neurobehavioral status, first hour | 22 | 22 | $0 |
| 96138 | Administration of psychological or neuropsychological test by technician, first 30 minutes | 19 | 19 | $0 |
Insurance plans in this area (ZIP 77030)
Loading plans...
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.