ALEXANDER CHASE CASTILLO
NPI 1841177847
Surgery - Plastic and Reconstructive Surgery in Mcallen, TX

Q: What is Alexander Chase Castillo's NPI number?

The NPI number for Alexander Chase Castillo is 1841177847. It was assigned to this organization in the NPPES registry on August 20, 2025. The provider is doing business as Alexander Chase Castillo MD PLLC.

Q: What is Alexander Chase Castillo's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Plastic and Reconstructive Surgery, with taxonomy code 2086S0122X.

Active since August 20, 2025

6316 N 10TH ST, MCALLEN, TX 78504(956) 833-1944(508) 286-7016 Get Directions Write a Review

NPPES record last updated: August 20, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Alexander Chase Castillo NPPES

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

ALEXANDER CHASE CASTILLO (NPI 1841177847), doing business as Alexander Chase Castillo Md Pllc, is a healthcare organization registered as a plastic and reconstructive surgery in Mcallen, Texas and active in the NPI registry since August 2025. The organization lists Alexander Chase Castillo, Owner, as its authorized official.

NPPES Registry Identity

NPI1841177847

Entity TypeOrganization

Primary Taxonomy2086S0122X

Legal Business NameALEXANDER CHASE CASTILLO

Location Address6316 N 10TH STMcallen, TX 78504-3599

Mailing Address3502 N Glasscock RdMission, TX 78573-8458 · (956) 833-1944 · Fax (508) 286-7016

Phone(956) 833-1944

Fax(508) 286-7016

Organization SubpartNo

Authorized OfficialAlexander Chase CastilloOwner · (956) 833-1944

Enumeration DateAugust 20, 2025

NPPES CertifiedAugust 20, 2025

✔ NPI 1841177847 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Plastic and Reconstructive SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code2086S0122X

Definition

A surgeon who specializes in plastic and reconstructive surgery.

6316 N 10TH ST, Mcallen, TX 78504

Open in Google Maps ↗

Other Names 1

Doing Business AsAlexander Chase Castillo Md Pllc

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 Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alexander Chase Castillo is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Alexander Chase Castillo, which bills Medicare for the services this clinician delivers.

Clinician (1)

Alexander Castillo, M.D.

Plastic and Reconstructive Surgery

NPI 1962822684

1100 E DOVE AVE STE 400
Mcallen, TX 78504

(956) 362-8160

✔ PECOS✔ Accepts Medicare0.5 mi

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

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 Alexander Chase Castillo's NPI number?

The NPI number for Alexander Chase Castillo is 1841177847. It was assigned to this organization in the NPPES registry on August 20, 2025. The provider is doing business as Alexander Chase Castillo MD PLLC.

Where is Alexander Chase Castillo located?

Alexander Chase Castillo is located at 6316 N 10th St, Mcallen, TX 78504. The listed phone number is (956) 833-1944.

What is Alexander Chase Castillo's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Plastic and Reconstructive Surgery, with taxonomy code 2086S0122X.

Is Alexander Chase Castillo enrolled in Medicare?

Yes. Alexander Chase Castillo is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Alexander Chase Castillo?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Plastic and Reconstructive Surgery) reassigns their Medicare billing to Alexander Chase Castillo. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Alexander Chase Castillo accept?

Health plans from Blue Cross and Blue Shield of Texas list Alexander Chase Castillo 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 Alexander Chase Castillo was last updated on August 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.