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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

ISAAC CASTILLO
NPI 1417877861
Student in an Organized Health Care Education/Training Program in Pomona, CA

Active since July 16, 2026
309 E 2ND ST, POMONA, CA 91766(909) 623-6116 Get Directions Write a Review

NPPES record added: July 16, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Isaac Castillo NPPES

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

ISAAC CASTILLO (NPI 1417877861) is an individual student in an organized health care education/training program in Pomona, California, licensed in California (INT52491) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1417877861
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameISAAC CASTILLO
Location Address309 E 2ND STPomona, CA 91766-1854
Mailing Address309 E 2nd StPomona, CA 91766-1854
Phone(909) 623-6116
Sole ProprietorNo
Enumeration DateJuly 16, 2026
NPPES CertifiedJuly 16, 2026
✔ NPI 1417877861 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
License✔ Licensed in CA · INT52491
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
309 E 2ND ST, Pomona, CA 91766
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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.

NANCY IRENE NIELSEN-BROWN PA-C
Physician Assistant (Medical)
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5386
BRITTNEY TUNON
Physician Assistant
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (703) 955-6286
MR. EVAN HERSHMAN
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
CHAU MINH NGUYEN PA-C
Physician Assistant
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (951) 892-4858
AMI PATEL
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
MR. FOUAD HAJJAR
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
THAO BICH VU
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
JULIA B DIAMANT
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589

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 1417877861. It was assigned to this individual provider in the NPPES registry on July 16, 2026.

Where is Isaac Castillo located?

Isaac Castillo practices at 309 E 2nd St, Pomona, CA 91766. The listed phone number is (909) 623-6116.

What is Isaac Castillo's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

When was this NPI record last updated?

The NPPES record for Isaac Castillo was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.