PEDRO J DIAZ-MARCHAN (M.D.) – Diagnostic Radiology Physician, NPI 1225070311
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,303 DIAGNOSTIC RADIOLOGY in TX
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Provider Addresses for PEDRO J DIAZ-MARCHAN (M.D.)
Houston Post Office, 123, South Main Street, Houston, Washington County, Pennsylvania, 15342, United States
HOUSTON, TX 772533119
Phone: (713) 481-3533
Fax: (713) 432-0221
Type: Mailing
CHI Saint Luke’s Health - Patients Medical Center, 4600, East Sam Houston Parkway South, Pasadena, Harris County, Texas, 77505, United States
PASADENA, TX 775053948
Phone: (713) 481-3533
Fax: (713) 432-0221
Type: Location
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: 2005-08-11
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 |
|---|---|---|---|---|
| I20050811000443 | 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 |
|---|---|---|---|---|
| 70450 | Ct scan head or brain without contrast | 98 | 89 | $0 |
| 72125 | Ct scan of upper spine without contrast | 16 | 15 | $0 |
| 70486 | Ct scan of face without contrast | 13 | 13 | $0 |
| 70496 | Ct scan of blood vessels of head with contrast | 13 | 13 | $0 |
| 70498 | Ct scan of blood vessels of neck with contrast | 13 | 13 | $0 |
Insurance plans in this area (ZIP 77253)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | TX | |
| Gastroenterology, Internal Medicine | TX | |
| Internal Medicine, Hospitalist | IN | |
| Hospitalist, Internal Medicine | TX | |
| Diagnostic Radiology | VA | |
| - | TX | |
| Family Practice | TX | |
| Internal Medicine, Pediatric Medicine | TX | |
| Psychiatry, Geriatric Psychiatry | TX | |
| - | TX |
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