ISAAC ANTHONY CASTILLO MD
NPI 1114547841
Orthopaedic Surgery - Foot and Ankle Surgery in Galveston, TX

Q: What is Isaac Castillo's NPI number?

The NPI number for Isaac Castillo is 1114547841. It was assigned to this individual provider in the NPPES registry on April 22, 2020.

Q: What is Isaac Castillo's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Foot and Ankle Surgery, with taxonomy code 207XX0004X.

Q: When was this NPI record last updated?

The NPPES record for Isaac Castillo was last updated on June 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since April 22, 2020PECOS Enrolled

301 UNIVERSITY BLVD, GALVESTON, TX 77555(409) 747-5727(409) 747-5715 Get Directions Write a Review

NPPES record last updated: June 7, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 7, 2026, Apr 22, 2020 (2 updates tracked since 2020).

On this page

About Isaac Anthony Castillo Md NPPES

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

ISAAC ANTHONY CASTILLO MD (NPI 1114547841) is an individual foot and ankle surgery provider in Galveston, Texas, licensed in Texas (W0139) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical School At Houston (2020).

NPPES Registry Identity

NPI1114547841

Entity TypeIndividualMale

Primary Taxonomy207XX0004X

Provider Legal NameISAAC ANTHONY CASTILLOCredential: MD

Location Address301 UNIVERSITY BLVDGalveston, TX 77555-0165

Mailing Address301 University BlvdGalveston, TX 77555-0165 · (409) 747-5727 · Fax (409) 747-5715

Phone(409) 747-5727

Fax(409) 747-5715

Sole ProprietorNo

Medical School CMSUniversity Of Texas Medical School At HoustonGraduated 2020

Enumeration DateApril 22, 2020

Last NPPES UpdateJune 7, 20262 updates tracked since enumeration

NPPES CertifiedJune 7, 2026

✔ NPI 1114547841 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Foot and Ankle SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207XX0004X

License✔ Licensed in TX · W0139

Definition

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, foot and ankle surgeons deal with adult reconstructive foot and ankle surgery, adult foot and ankle trauma, sports medicine foot and ankle, and children's foot and ankle reconstructive surgery.

301 UNIVERSITY BLVD, Galveston, TX 77555

Open in Google Maps ↗

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, WellPoint.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Isaac Anthony Castillo Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5597196014

PECOS Enrollment IDI20260720000716

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 Isaac Castillo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Utmb Faculty Group Practice

Same address

General Practice

301 UNIVERSITY BLVD
Galveston, TX 77555

Reassigned Medicare billing, Texas enrollment
2,222 clinicians in this Medicare group

NPI 1942241146 (409) 772-2222

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

Other Providers at the Same Location NPPES 20

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

AMY KATHERINE HAVERTY PNP

Nurse Practitioner (Pediatrics)

301 UNIVERSITY BLVD
GALVESTON, TX 77555

Galveston County (409) 772-2222

EVA NOVAK BLIGHT NNP

Nurse Practitioner (Neonatal)

301 UNIVERSITY BLVD
GALVESTON, TX 77555

Galveston County (409) 772-2222

DR. JENNIFER ANN MINNEMAN MD

Surgery (Trauma Surgery)

301 UNIVERSITY BLVD
GALVESTON, TX 77555

Galveston County (409) 772-1011

DR. JAMES HAROLD PAVELA MD

Internal Medicine

301 UNIVERSITY BLVD
GALVESTON, TX 77555

Galveston County (409) 772-7063

DIAA HAMOUDA MBBCH

Psychiatry & Neurology (Neurology)

301 UNIVERSITY BLVD, JSA 9.128
GALVESTON, TX 77555

Galveston County (409) 772-8031

SOMMER KIRSCH CAUSEY MD

Anesthesiology

301 UNIVERSITY BLVD
GALVESTON, TX 77555

Galveston County (409) 772-1221

RANDA ABDELMASIH MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

301 UNIVERSITY BLVD
GALVESTON, TX 77555

Galveston County (832) 505-2300

HEATHER PENTON

Anesthesiology

301 UNIVERSITY BLVD
GALVESTON, TX 77555

Galveston County (409) 772-2222

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 Isaac Castillo's NPI number?

The NPI number for Isaac Castillo is 1114547841. It was assigned to this individual provider in the NPPES registry on April 22, 2020.

Where is Isaac Castillo located?

Isaac Castillo practices at 301 University Blvd, Galveston, TX 77555. The listed phone number is (409) 747-5727.

What is Isaac Castillo's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Foot and Ankle Surgery, with taxonomy code 207XX0004X.

Is Isaac Castillo enrolled in Medicare?

Yes. Isaac Castillo is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Isaac Castillo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Isaac Castillo reassigns Medicare benefits to Utmb Faculty Group Practice (Galveston, 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 Isaac Castillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Isaac Castillo accept?

Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company and WellPoint list Isaac 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 Isaac Castillo was last updated on June 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.