1. Home
  2. Directory
  3. Texas
  4. Harlingen
  5. Nurse Practitioner
  6. NPI Profile

MARIA E ZAMARRON FNP-C
NPI 1114877271
Nurse Practitioner in Harlingen, TX

Active since January 29, 2026PECOS EnrolledAccepts Medicare Assignment
2230 HAINE DR, HARLINGEN, TX 78550(956) 425-4901 Get Directions Write a Review

NPPES record last updated: February 9, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Feb 4, 2026, Jan 29, 2026 (2 updates tracked since 2026).

About Maria E Zamarron Fnp-c NPPES

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

MARIA E ZAMARRON FNP-C (NPI 1114877271) is an individual nurse practitioner in Harlingen, Texas, licensed in Texas (1216946) and active in the NPI registry since January 2026. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1114877271
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMARIA E ZAMARRONCredential: FNP-C
Location Address2230 HAINE DRHarlingen, TX 78550-8549
Mailing AddressPo Box 5730Belfast, ME 04915-5700
Phone(956) 425-4901
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJanuary 29, 2026
Last NPPES UpdateFebruary 9, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 9, 2026
✔ NPI 1114877271 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in TX · 1216946
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.
Also ListedClinical Nurse Specialist · Family HealthTaxonomy 364SF0001X · License 1216946 (TX)
Also ListedClinical Nurse Specialist · Women's HealthTaxonomy 364SW0102X · License 1216946 (TX)
2230 HAINE DR, Harlingen, TX 78550
Open in Google Maps ↗

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

Maria E Zamarron Fnp-c 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 ID9436626488
PECOS Enrollment IDI20260427002737
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 78550 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 4

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

DR. RUBEN MARIA TORRES JR. M.D.
Obstetrics & Gynecology
2230 HAINE DR, SUITE 1G
HARLINGEN, TX 78550
Cameron County (956) 425-4901
DR. UVALDO CANTU JR. M.D.
Obstetrics & Gynecology
2230 HAINE DR
HARLINGEN, TX 78550
Cameron County (956) 425-4901
BRITTANY FREEMAN PA
Physician Assistant
2230 HAINE DR
HARLINGEN, TX 78550
Cameron County (956) 425-4901
HARLINGEN OBSTETRICS & GYNECOLOGY ASSOCIATES, PA
Obstetrics & Gynecology (Obstetrics)
2230 HAINE DR
HARLINGEN, TX 78550
Cameron County (956) 425-4901

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 Maria Zamarron's NPI number?

The NPI number for Maria Zamarron is 1114877271. It was assigned to this individual provider in the NPPES registry on January 29, 2026.

Where is Maria Zamarron located?

Maria Zamarron practices at 2230 Haine Dr, Harlingen, TX 78550. The listed phone number is (956) 425-4901.

What is Maria Zamarron's specialty?

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

Is Maria Zamarron enrolled in Medicare?

Yes. Maria Zamarron 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.

When was this NPI record last updated?

The NPPES record for Maria Zamarron was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.