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DR. KATHLEEN PEREZ M.D.
NPI 1740620079
Pediatrics in Irvine, CA

Active since July 01, 2013PECOS Enrolled
22 ODYSSEY STE 255, IRVINE, CA 92618(949) 600-8100 Get Directions Write a Review

NPPES record last updated: November 22, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 22, 2024, May 9, 2024, Dec 15, 2021 (3 updates tracked since 2021).

About Dr. Kathleen Perez M.d. NPPES

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

DR. KATHLEEN PEREZ M.D. (NPI 1740620079) is an individual pediatrics provider in Irvine, California, licensed in California (A140684) and active in the NPI registry since July 2013. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740620079
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. KATHLEEN PEREZCredential: M.D.
Location Address22 ODYSSEY STE 255Irvine, CA 92618-7701
Mailing Address22 Odyssey Ste 255Irvine, CA 92618-7701
Phone(949) 600-8100
Sole ProprietorNo
Enumeration DateJuly 1, 2013
Last NPPES UpdateNovember 22, 20243 updates tracked since enumeration
NPPES CertifiedNovember 22, 2024
✔ NPI 1740620079 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A140684
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
22 ODYSSEY STE 255, Irvine, CA 92618
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Kathleen Perez M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignments

2

Medicare enrollment records show Kathleen Perez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Southern California Permanente Medical Group
13 mi
Health Maintenance Organization
441 N LAKEVIEW AVE
Anaheim, CA 92807
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1952333460 (714) 279-4000
Permanente Medical Group Inc
348 mi
Internal Medicine
710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1073606299 (408) 851-1000

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92618 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

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

MICHELLE ERIN JACOBS IBCLC
Lactation Consultant, Non-RN
22 ODYSSEY STE 255
IRVINE, CA 92618
Orange County (608) 335-7960
DR. MICHAEL VILLADELGADO MD
Pediatrics
22 ODYSSEY STE 255
IRVINE, CA 92618
Orange County (949) 600-8100

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 Kathleen Perez's NPI number?

The NPI number for Kathleen Perez is 1740620079. It was assigned to this individual provider in the NPPES registry on July 1, 2013.

Where is Kathleen Perez located?

Kathleen Perez practices at 22 Odyssey Ste 255, Irvine, CA 92618. The listed phone number is (949) 600-8100.

What is Kathleen Perez's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Kathleen Perez enrolled in Medicare?

Yes. Kathleen Perez is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Kathleen Perez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Perez reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (Anaheim, CA) and Permanente Medical Group Inc (Santa Clara, CA). Each 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 Kathleen Perez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Kathleen Perez was last updated on November 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.