DR. DIANE NUGENT M.D.
NPI 1770528663
Pediatrics - Pediatric Hematology-Oncology in Orange, CA

Active since June 17, 2006PECOS EnrolledAccepts Medicare Assignment
455 S MAIN ST, ORANGE, CA 92868(714) 532-8744 Get Directions Write a Review

NPPES record last updated: January 28, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 28, 2026, Mar 17, 2018, Aug 16, 2017 (3 updates tracked since 2017).

About Dr. Diane Nugent M.d. NPPES

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

DR. DIANE NUGENT M.D. (NPI 1770528663) is an individual pediatric hematology-oncology provider in Orange, California, licensed in California (G075931) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Orange, and is a graduate of University Of California, Geffen School Of Medicine (1977).

NPPES Registry Identity

NPI1770528663
Entity TypeIndividualFemale
Primary Taxonomy2080P0207X
Provider Legal NameDR. DIANE NUGENTCredential: M.D.
Location Address455 S MAIN STOrange, CA 92868-3835
Mailing AddressChoc Childrens Specialists, 1201 W La Veta AveOrange, CA 92868-4203 · (888) 770-2462
Sole ProprietorNo
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1977
Enumeration DateJune 17, 2006
Last NPPES UpdateJanuary 28, 20263 updates tracked since enumeration
NPPES CertifiedJanuary 28, 2026
NPI 1770528663 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License Licensed in CA · G075931
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
Also ListedCase Manager/Care CoordinatorTaxonomy 171M00000X · License G75931 (CA)
Also ListedPediatricsTaxonomy 208000000X · License G075931 (CA)
455 S MAIN ST, Orange, CA 92868

Secondary Practice Location 1

Location 11010 W La Veta AveOrange, CA 92868-4300 · Phone (714) 221-1200 · Fax (714) 221-1299

Other Identifiers 2

MedicaidGR0053510CA
Medicaid00G759310CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Diane Nugent M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9537129655
PECOS Enrollment IDI20041013000955
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
65 services35 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
13 services12 patients

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.

Surgery (Pediatric Surgery)
455 S MAIN ST, GENERAL SURGERY
ORANGE, CA 92868
Pediatrics
455 S MAIN ST
ORANGE, CA 92868
Nurse Practitioner (Pediatrics, Critical Care)
455 S MAIN ST
ORANGE, CA 92868
Pediatrics (Neonatal-Perinatal Medicine)
455 S MAIN ST
ORANGE, CA 92868
Pediatrics (Pediatric Gastroenterology)
455 S MAIN ST
ORANGE, CA 92868
Pediatrics
455 S MAIN ST
ORANGE, CA 92868
Psychiatry & Neurology (Neurology)
455 S MAIN ST
ORANGE, CA 92868
Nurse Practitioner (Pediatrics)
455 S MAIN ST
ORANGE, CA 92868

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 Diane Nugent's NPI number?

The NPI number for Diane Nugent is 1770528663. It was assigned to this individual provider in the NPPES registry on June 17, 2006.

Where is Diane Nugent located?

Diane Nugent practices at 455 S Main St, Orange, CA 92868. The listed phone number is (714) 532-8744.

What is Diane Nugent's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Diane Nugent enrolled in Medicare?

Yes. Diane Nugent is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Diane Nugent was last updated on January 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.