DR. STEVEN SEAN CALLAHAN (PH.D.) – Psychologist, NPI 1275677643
Psychologist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,347 CLINICAL PSYCHOLOGIST in TX
Provider Addresses for DR. STEVEN SEAN CALLAHAN (PH.D.)
4101 GREENBRIAR ST
SUITE 115
HOUSTON, TX 770985294
Phone: (713) 526-5149
Fax: (713) 526-0391
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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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: 2025-03-27
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 11 Medicare enrollment records; no due dates published yet.
Enrollment records
11
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 |
|---|---|---|---|---|
| I20101118001277 | I | Clinical Psychologist | TX | TBD |
| I20240411001206 | I | Clinical Psychologist | AL | TBD |
| I20240412003821 | I | Clinical Psychologist | IN | TBD |
| I20240501001362 | I | Clinical Psychologist | FL | TBD |
| I20240523001364 | I | Clinical Psychologist | CO | TBD |
| I20240529001556 | I | Clinical Psychologist | KY | TBD |
| I20240529003484 | I | Clinical Psychologist | OH | TBD |
| I20240621001995 | I | Clinical Psychologist | GA | TBD |
| I20241210003127 | I | Clinical Psychologist | NE | TBD |
| I20250204001447 | I | Clinical Psychologist | OK | TBD |
| I20250327002615 | I | Clinical Psychologist | AZ | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 77098)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Clinical Psychologist | TX | |
| Clinical Social Worker | TX | |
| Mental Health Counselor | TX | |
| - | TX | |
| Clinical Psychologist | TX | |
| Clinical Psychologist | TX | |
| Clinical Psychologist | TX | |
| Mental Health Counselor | TX |
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