DR. ENRIQUE O. ORTIZ-DIAZ (M.D.) – Critical Care Medicine (Internal Medicine) Physician, NPI 1275737660
Critical Care Medicine (Internal Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,290 INTERNAL MEDICINE in TX
Provider Addresses for DR. ENRIQUE O. ORTIZ-DIAZ (M.D.)
4458 MEDICAL DR STE 505
SAN ANTONIO, TX 782293748
Phone: (210) 690-7400
Type: Mailing
18220 State Highway 249
Houston, TX 77070
Phone: (281) 737-8300
Type: Location
Turabo Garden Carretera 172 Salida 21
Caguas, PR 007277084
Phone: (787) 653-0550
Type: Location
3663 S Miami Ave
Miami, FL 331334253
Phone: (305) 854-0616
Fax: (305) 854-4384
Type: Location
SH, Lee Road, Houston, Harris County, Texas, 77338, United States
HOUSTON, TX 770704347
Phone: (281) 737-8300
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $19.
Total Amount is formed as General ($19) + Research ($0) + Ownership ($0) = $19.
Last reported payment date: 2023-05-02 • Largest payer in this snapshot: Avanos Medical ($19).
Total Amount
$19
General + Research + Ownership
Payments
1
Total payment records
General Amount
$19
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-05-02
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Avanos Medical | $19 |
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: 2025-03-03
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20190116002308 | I | Critical Care (Intensivists) | TX | TBD |
| I20250303002123 | I | Internal Medicine | PR | 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 |
|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | 242 | 156 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 31 | 27 | $0 |
| 36556 | Insertion of non-tunneled central venous tube for infusion (5 years or older) | 21 | 19 | $0 |
| 31500 | Emergent insertion of breathing tube into windpipe using an endoscope | 17 | 15 | $0 |
| 99292 | Critical care, each additional 30 minutes | 16 | 13 | $0 |
Insurance plans in this area (ZIP 78229)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | FL | 36556 | Insertion of central venous catheter for infusion, patient 5 years or older | 28 | 28 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Pulmonary Disease | TX | |
| Nephrology, Critical Care (Intensivists) | AL | |
| Critical Care (Intensivists), Pulmonary Disease | IN | |
| Pulmonary Disease, Critical Care (Intensivists) | LA | |
| Internal Medicine | TX | |
| Pulmonary Disease | RI | |
| Pulmonary Disease, Critical Care (Intensivists) | ME | |
| Hospitalist, Internal Medicine | TX | |
| Pulmonary Disease | TX | |
| Pulmonary Disease | TX |
Reviews
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