1. Home
  2. Directory
  3. California
  4. Anaheim
  5. Registered Nurse
  6. NPI Profile

KATHERINE ATIENZA RN
NPI 1386500221
Registered Nurse - Gastroenterology in Anaheim, CA

Active since January 03, 2026
1111 W LA PALMA AVE, ANAHEIM, CA 92801(714) 999-3938 Get Directions Write a Review

NPPES record last updated: January 3, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Katherine Atienza Rn NPPES

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

KATHERINE ATIENZA RN (NPI 1386500221) is an individual gastroenterology provider in Anaheim, California, licensed in California (95267685) and active in the NPI registry since January 2026.

NPPES Registry Identity

NPI1386500221
Entity TypeIndividualFemale
Primary Taxonomy163WG0100X
Provider Legal NameKATHERINE ATIENZACredential: RN
Location Address1111 W LA PALMA AVEAnaheim, CA 92801-2804
Mailing Address6171 San Ricardo WayBuena Park, CA 90620-2843 · (714) 496-7120
Phone(714) 999-3938
Sole ProprietorNo
Enumeration DateJanuary 3, 2026
NPPES CertifiedJanuary 3, 2026
✔ NPI 1386500221 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRegistered Nurse · GastroenterologyNursing Service Providers
Taxonomy Code163WG0100X
License✔ Licensed in CA · 95267685
1111 W LA PALMA AVE, Anaheim, CA 92801
Open in Google Maps ↗

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.

ERNESTO P GIDAYA MD
Anesthesiology
1111 W LA PALMA AVE
ANAHEIM, CA 92801
Orange County (714) 774-1450
MR. JORGE ROMERO JR.
Social Worker (Clinical)
1111 W LA PALMA AVE
ANAHEIM, CA 92801
Orange County (714) 774-1450
ANAHIEM MEMORIAL MEDICAL CENTER
General Acute Care Hospital
1111 W LA PALMA AVE, 1111 W LA PALMA AVENUE
ANAHEIM, CA 92801
Orange County (714) 999-3800
DR. JAKLYN RAE MCCLENDON M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
1111 W LA PALMA AVE, AMMC - DEPT. OF PATHOLOGY
ANAHEIM, CA 92801
Orange County (714) 999-6075
ANAHEIM EMERGENCY MEDICAL GROUP
Emergency Medicine
1111 W LA PALMA AVE
ANAHEIM, CA 92801
Orange County (714) 774-1450
D LALANI PERERA-THANGARATNAM MD
Anesthesiology
1111 W LA PALMA AVE
ANAHEIM, CA 92801
Orange County (714) 774-1450
D LALANI PERERA-THANGARATNAM MD INC
Anesthesiology (Pain Medicine)
1111 W LA PALMA AVE
ANAHEIM, CA 92801
Orange County (714) 774-1450
LEI ZHANG M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
1111 W LA PALMA AVE
ANAHEIM, CA 92801
Orange County (714) 774-1450

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 Katherine Atienza's NPI number?

The NPI number for Katherine Atienza is 1386500221. It was assigned to this individual provider in the NPPES registry on January 3, 2026.

Where is Katherine Atienza located?

Katherine Atienza practices at 1111 W La Palma Ave, Anaheim, CA 92801. The listed phone number is (714) 999-3938.

What is Katherine Atienza's specialty?

The primary specialty registered for this NPI is Registered Nurse, specializing in Gastroenterology, with taxonomy code 163WG0100X.

When was this NPI record last updated?

The NPPES record for Katherine Atienza was last updated on January 3, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.