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WHITTIER ONCOLOGY MEDICAL CLINIC, INC.
NPI 1427101229
Clinic/Center - Oncology, Radiation in Whittier, CA

Active since January 18, 2007
12393 WASHINGTON BLVD, WHITTIER, CA 90606(562) 696-5964(562) 693-6940 Get Directions Write a Review

NPPES record last updated: February 24, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Whittier Oncology Medical Clinic, Inc. NPPES

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

WHITTIER ONCOLOGY MEDICAL CLINIC, INC. (NPI 1427101229) is a healthcare organization registered as an oncology, radiation in Whittier, California and active in the NPI registry since January 2007. The organization lists Kevin Diao, President, as its authorized official.

NPPES Registry Identity

NPI1427101229
Entity TypeOrganization
Primary Taxonomy261QX0203X
Legal Business NameWHITTIER ONCOLOGY MEDICAL CLINIC, INC.
Location Address12393 WASHINGTON BLVDWhittier, CA 90606-2502
Mailing Address12393 Washington BlvdWhittier, CA 90606-2502 · (562) 696-5964 · Fax (562) 464-5120
Phone(562) 696-5964
Fax(562) 693-6940
Organization SubpartNo
Authorized OfficialKevin DiaoPresident · (562) 696-5964
Enumeration DateJanuary 18, 2007
Last NPPES UpdateFebruary 24, 2026
NPPES CertifiedFebruary 24, 2026
✔ NPI 1427101229 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Oncology, RadiationAmbulatory Health Care Facilities
Taxonomy Code261QX0203X
Licenses✔ Licensed in CA · G62716✔ Licensed in CA · G56388
12393 WASHINGTON BLVD, Whittier, CA 90606
Open in Google Maps ↗

Other Identifiers 2

MedicaidZZZ72741ZCA
OtherZZZ72741ZCA · Blue Shield

Other Providers at the Same Location NPPES 5

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

PIH HEALTH WHITTIER HOSPITAL
Prosthetic/Orthotic Supplier
12393 WASHINGTON BLVD
WHITTIER, CA 90606
Los Angeles County (562) 698-0811
DR. WILLIAM S KUROHARA M.D.
Radiology (Radiation Oncology)
12393 WASHINGTON BLVD
WHITTIER, CA 90606
Los Angeles County (562) 696-5964
KEVIN DIAO MD
Radiology (Radiation Oncology)
12393 WASHINGTON BLVD
WHITTIER, CA 90606
Los Angeles County (562) 696-5964
JEFFREY C YUEN M.D.
Radiology (Radiation Oncology)
12393 WASHINGTON BLVD
WHITTIER, CA 90606
Los Angeles County (562) 696-5964
WHITTIER BREAST IMAGING PROFESSIONAL MEDICAL CORPORATION
Radiology (Diagnostic Radiology)
12393 WASHINGTON BLVD
WHITTIER, CA 90606
Los Angeles County (562) 907-0667

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 Whittier Oncology Medical Clinic, Inc.'s NPI number?

The NPI number for Whittier Oncology Medical Clinic, Inc. is 1427101229. It was assigned to this organization in the NPPES registry on January 18, 2007.

Where is Whittier Oncology Medical Clinic, Inc. located?

Whittier Oncology Medical Clinic, Inc. is located at 12393 Washington Blvd, Whittier, CA 90606. The listed phone number is (562) 696-5964.

What is Whittier Oncology Medical Clinic, Inc.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Oncology, Radiation, with taxonomy code 261QX0203X.

When was this NPI record last updated?

The NPPES record for Whittier Oncology Medical Clinic, Inc. was last updated on February 24, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.