SILVIA D. ORENGO-NANIA (M.D.) – Ophthalmology Physician, NPI 1861481228
Ophthalmology Physician
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Profile Insights
NPPES metrics only — not quality of care.
1,544 OPHTHALMOLOGY in TX
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Provider Addresses for SILVIA D. ORENGO-NANIA (M.D.)
Houston Post Office, 2087, AR 60, Houston, Perry County, Arkansas, 72070, United States
HOUSTON, TX 772104771
Phone: (713) 798-6100
Fax: (713) 798-4082
Type: Mailing
Houston Methodist - Scurlock Tower, 6560, Fannin Street, Texas Medical Center, Houston, Harris County, Texas, 77030, United States
SUITE 2200
HOUSTON, TX 770302761
Phone: (713) 798-6100
Fax: (713) 798-4082
Type: Location
516 DELAWARE ST SE
MINNEAPOLIS, MN 554550356
Phone: (713) 798-6100
Fax: (713) 798-4082
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 62 Open Payments records for all available years, with a total value of $4,938.
Total Amount is formed as General ($4,938) + Research ($0) + Ownership ($0) = $4,938.
Last reported payment date: 2024-11-20 • Largest payer in this snapshot: Alcon Vision LLC ($2,048).
Total Amount
$4,938
General + Research + Ownership
Payments
62
Total payment records
General Amount
$4,938
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Alcon Vision LLC | $2,048 |
| ABBVIE INC. | $1,015 |
| Sight Sciences, Inc. | $789 |
| NEW WORLD MEDICAL,INC. | $522 |
| Glaukos Corporation | $320 |
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: 2024-04-04
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 |
|---|---|---|---|---|
| I20101102001342 | I | Ophthalmology | TX | TBD |
| I20240404002626 | I | Ophthalmology | MN | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 453 | 214 | $0 |
| 92133 | Imaging of optic nerve | 203 | 195 | $0 |
| 92083 | Exam of visual field with extended testing | 183 | 180 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 125 | 98 | $0 |
| 76519 | Ultrasound scan to determine eye length and lens power | 35 | 23 | $0 |
Insurance plans in this area (ZIP 77210)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| OPHTHALMOLOGY | TX | 92012 | Eye and medical examination for diagnosis and treatment, established patient | 478 | 267 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | MN | |
| G A S T R O E N T E R O L O G Y | MN | |
| N E U R O S U R G E R Y | OH | |
| - | MN | |
| Physician Assistant | MN | |
| Physician Assistant | MN | |
| - | MN | |
| - | MN | |
| Physical Therapist In Private Practice | OR | |
| Cardiovascular Disease (Cardiology) | IL |
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