JOHN T MARRIOTT (D.O.) – Diagnostic Radiology Physician, NPI 1134102668
Diagnostic Radiology Physician
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Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,303 DIAGNOSTIC RADIOLOGY in TX
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Provider Addresses for JOHN T MARRIOTT (D.O.)
62, Grogans Point Road, Grogan's Mill, The Woodlands, Montgomery County, Texas, 77380, United States
THE WOODLANDS, TX 773802620
Phone: (281) 292-7227
Fax: (281) 292-3961
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.
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: 2004-05-21
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 |
|---|---|---|---|---|
| I20040521000260 | I | Diagnostic Radiology | 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 |
|---|---|---|---|---|
| 71045 | X-ray of chest, 1 view | 405 | 275 | $0 |
| 74018 | X-ray of abdomen, 1 view | 52 | 45 | $0 |
| 70450 | Ct scan head or brain without contrast | 36 | 36 | $0 |
| 71046 | X-ray of chest, 2 views | 35 | 35 | $0 |
| 72125 | Ct scan of upper spine without contrast | 29 | 28 | $0 |
Insurance plans in this area (ZIP 77380)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | TX | 71010 | X-ray of chest, 1 view, front | 899 | 611 |
| DIAGNOSTIC RADIOLOGY | TX | 71250 | CT scan chest | 40 | 40 |
| DIAGNOSTIC RADIOLOGY | TX | 73562 | X-ray of knee, 3 views | 44 | 39 |
| DIAGNOSTIC RADIOLOGY | TX | 73630 | X-ray of foot, minimum of 3 views | 23 | 22 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Interventional Radiology, Diagnostic Radiology | LA | |
| Diagnostic Radiology | TX | |
| Diagnostic Radiology | GA | |
| Diagnostic Radiology | TX | |
| - | TX | |
| Interventional Cardiology, Diagnostic Radiology | TX | |
| Diagnostic Radiology | TX | |
| - | TX | |
| Diagnostic Radiology | TX | |
| Interventional Radiology, Diagnostic Radiology | PA |
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