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MARIA PILAR PEREZ WALTERHOUSE
NPI 1306716907
Nurse Practitioner - Gerontology in Mcallen, TX

Active since November 08, 2025PECOS Enrolled
2324 PELICAN AVE, MCALLEN, TX 78504(956) 802-4830 Get Directions Write a Review

NPPES record last updated: November 8, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Maria Pilar Perez Walterhouse NPPES

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

MARIA PILAR PEREZ WALTERHOUSE (NPI 1306716907) is an individual gerontology provider in Mcallen, Texas, licensed in Texas (697402) and active in the NPI registry since November 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1306716907
Entity TypeIndividualFemale
Primary Taxonomy363LG0600X
Provider Legal NameMARIA PILAR PEREZ WALTERHOUSE
Location Address2324 PELICAN AVEMcallen, TX 78504-4253
Mailing Address2324 Pelican AveMcallen, TX 78504-4253 · (956) 802-4830
Phone(956) 802-4830
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateNovember 8, 2025
NPPES CertifiedNovember 8, 2025
✔ NPI 1306716907 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · GerontologyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LG0600X
License✔ Licensed in TX · 697402
2324 PELICAN AVE, Mcallen, TX 78504
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maria Pilar Perez Walterhouse is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4183107311
PECOS Enrollment IDI20260316001171
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.

Medicare Billing Reassignment

Medicare enrollment records show Maria Pilar Walterhouse reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Renaissance Icu Group
2.2 mi
Critical Care Medicine
5501 S MCCOLL RD
Edinburg, TX 78539
  • Reassigned Medicare billing, Texas enrollment
  • 26 clinicians in this Medicare group
NPI 1740715820 (956) 362-8677

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78504 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.

MR. GUILLERMO TE JR. P.T.
Specialist
2324 PELICAN AVE
MCALLEN, TX 78504
Hidalgo County (956) 686-2874

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 Pilar Walterhouse's NPI number?

The NPI number for Maria Pilar Walterhouse is 1306716907. It was assigned to this individual provider in the NPPES registry on November 8, 2025.

Where is Maria Pilar Walterhouse located?

Maria Pilar Walterhouse practices at 2324 Pelican Ave, Mcallen, TX 78504. The listed phone number is (956) 802-4830.

What is Maria Pilar Walterhouse's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.

Is Maria Pilar Walterhouse enrolled in Medicare?

Yes. Maria Pilar Walterhouse is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Maria Pilar Walterhouse's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Pilar Walterhouse reassigns Medicare benefits to Renaissance Icu Group (Edinburg, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Maria Pilar Walterhouse's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Maria Pilar Walterhouse accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 1 other insurer list Maria Pilar Walterhouse 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 Maria Pilar Walterhouse was last updated on November 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.