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MR. ERNESTO MARRERO MSN, FNP
NPI 1104428416
Nurse Practitioner in Round Rock, TX

Active since November 11, 2020PECOS EnrolledAccepts Medicare Assignment
2631 GATTIS SCHOOL RD STE 150, ROUND ROCK, TX 78664(512) 243-5872(512) 243-7130 Get Directions Write a Review

NPPES record last updated: September 29, 2023. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jan 3, 2022, Nov 11, 2020 (2 updates tracked since 2020).

About Mr. Ernesto Marrero Msn, Fnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. ERNESTO MARRERO MSN, FNP (NPI 1104428416) is an individual nurse practitioner in Round Rock, Texas, licensed in Texas (F11200009) and active in the NPI registry since November 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1104428416
Entity TypeIndividualMale
Primary Taxonomy363L00000X
Provider Legal NameMR. ERNESTO MARREROCredential: MSN, FNP
Location Address2631 GATTIS SCHOOL RD STE 150Round Rock, TX 78664-2825
Mailing Address2631 Gattis School Rd Ste 150Round Rock, TX 78664-2825 · (512) 243-5872 · Fax (512) 243-7130
Phone(512) 243-5872
Fax(512) 243-7130
Sole ProprietorYes
Medical School CMSOtherGraduated 2020
Enumeration DateNovember 11, 2020
Last NPPES UpdateSeptember 29, 20232 updates tracked since enumeration
NPPES CertifiedSeptember 29, 2023
✔ NPI 1104428416 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in TX · F11200009
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
2631 GATTIS SCHOOL RD STE 150, Round Rock, TX 78664
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Ernesto Marrero Msn, Fnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6507269453
PECOS Enrollment IDI20250128001210
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78664 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

VIVA HEALTH CLINIC, LLC
Nurse Practitioner
2631 GATTIS SCHOOL RD STE 150
ROUND ROCK, TX 78664
Williamson County (512) 243-5872

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ernesto Marrero's NPI number?

The NPI number for Ernesto Marrero is 1104428416. It was assigned to this individual provider in the NPPES registry on November 11, 2020.

Where is Ernesto Marrero located?

Ernesto Marrero practices at 2631 Gattis School Rd Ste 150, Round Rock, TX 78664. The listed phone number is (512) 243-5872.

What is Ernesto Marrero's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Ernesto Marrero enrolled in Medicare?

Yes. Ernesto Marrero is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Ernesto Marrero accept?

Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company and UnitedHealthcare list Ernesto Marrero as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ernesto Marrero was last updated on September 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.