MR. ERNESTO MARRERO (MSN, FNP) – Nurse Practitioner, NPI 1104428416
Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
22,209 NURSE PRACTITIONER in TX
Provider Addresses for MR. ERNESTO MARRERO (MSN, FNP)
2631 GATTIS SCHOOL RD STE 150
ROUND ROCK, TX 786642825
Phone: (512) 243-5872
Fax: (512) 243-7130
Type: Mailing
3130 JAZZ ST
ROUND ROCK, TX 786647219
Phone: (512) 903-6741
Type: Mailing
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: 2025-01-28
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 |
|---|---|---|---|---|
| I20210729001695 | I | Nurse Practitioner | TX | TBD |
| I20250128001210 | I | Nurse Practitioner | NY | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 78664)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | TX | |
| Physician Assistant | NY | |
| Nurse Practitioner | OR | |
| Nurse Practitioner | IA | |
| P O D I A T R Y | NY | |
| Nurse Practitioner | NY | |
| Nurse Practitioner | NY | |
| Physician Assistant | NY | |
| O B S T E T R I C S/ G Y N E C O L O G Y | NY | |
| Cardiovascular Disease (Cardiology), Interventional Cardiology, Cardiovascular Disease (Cardiology), Internal Medicine, Nuclear Medicine, Peripheral Vascular Disease | NY |
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