OSCAR A ALVAREZ (MD) – Specialist, NPI 1376565838
Specialist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,290 INTERNAL MEDICINE in TX
Provider Addresses for OSCAR A ALVAREZ (MD)
512 VICTORIA LN STE 2
HARLINGEN, TX 785503227
Phone: (956) 365-4400
Fax: (956) 365-4111
Type: Location
5423, South McColl Road, Edinburg, Hidalgo County, Texas, 78539, United States
EDINBURG, TX 785399183
Phone: (956) 682-4800
Fax: (956) 630-2320
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $105.
Total Amount is formed as General ($105) + Research ($0) + Ownership ($0) = $105.
Last reported payment date: 2023-05-10 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($87).
Total Amount
$105
General + Research + Ownership
Payments
2
Total payment records
General Amount
$105
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-05-10
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2010-10-28
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 |
|---|---|---|---|---|
| I20101028001519 | I | Gastroenterology | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 45 | 43 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 21 | 21 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 19 | 19 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 17 | 17 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 17 | 17 | $0 |
Insurance plans in this area (ZIP 78550)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | TX | |
| Nurse Practitioner | TX | |
| G A S T R O E N T E R O L O G Y | TX | |
| Physician Assistant | TX | |
| Internal Medicine | TX | |
| Colorectal Surgery (Proctology), General Surgery | TX | |
| Gastroenterology, Internal Medicine | TX | |
| G A S T R O E N T E R O L O G Y | TX | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX |
Reviews
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