DR. RICHARD ARROYO-DIAZ (MD) – Internal Medicine Physician, NPI 1629005418
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,290 INTERNAL MEDICINE in TX
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Provider Addresses for DR. RICHARD ARROYO-DIAZ (MD)
North Virginia Street, Port Lavaca, Calhoun County, Texas, 77979, United States
PORT LAVACA, TX 779792507
Phone: (361) 552-6721
Fax: (361) 552-7463
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)
CMS reports 22 Open Payments records for all available years, with a total value of $426.
Total Amount is formed as General ($426) + Research ($0) + Ownership ($0) = $426.
Last reported payment date: 2024-12-13 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($102).
Total Amount
$426
General + Research + Ownership
Payments
22
Total payment records
General Amount
$426
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-13
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $102 |
| Amgen Inc. | $68 |
| PFIZER INC. | $55 |
| Lilly USA, LLC | $43 |
| Novo Nordisk Inc | $41 |
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: 2010-01-15
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 |
|---|---|---|---|---|
| I20100115000648 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 91 | 12 | $0 |
| 93306 | Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 20 | 19 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 11 | 11 | $0 |
Insurance plans in this area (ZIP 77979)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | TX | |
| - | TX | |
| O B S T E T R I C S/ G Y N E C O L O G Y | OR | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX | |
| - | TX | |
| Family Practice | TX | |
| - | AZ | |
| - | TX | |
| Family Practice, Obstetrics/Gynecology | TX |
Reviews
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