MRS. IRENE KAJIYA NAGEL (P.A.-C) – Surgical Physician Assistant, NPI 1255447496

MRS. IRENE KAJIYA NAGEL (P.A.-C) is a healthcare provider. based in Fountain valley, California. specializing in PHYSICIAN ASSISTANT. They hold the professional credentials P.A.-C. They hold a License No. PA225076 (OR). The NPI Number for MRS. IRENE KAJIYA NAGEL (P.A.-C) is 1255447496

Main info

Female
26 Years Of Experience
Accepts Medicare Assignment
Name
MRS. IRENE KAJIYA NAGEL (P.A.-C)
NPI
1255447496
Phone
(657) 241-9440
Address
18035 BROOKHURST ST., SUITE 1300
Enumeration Date
21 August 2006
Last Update Date
27 June 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
-
Graduation Year
2000 (26 years ago)
PAC ID
9234194168
Professional Enrollment ID
I20250602000612
Address ID
OR973306173CO815XXSTXX419

Contacts

FHIR Endpoint
https://memorialcare.org/fhir/api/FHIR/R4/
Secure Messaging
inagel324337@samhealth.direct-ci.com
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience76
Completeness95
Years active:19State licenses:2Other names

10,570 PHYSICIAN ASSISTANT in CA

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Provider Addresses for MRS. IRENE KAJIYA NAGEL (P.A.-C)

  • 18035 BROOKHURST ST., SUITE 1300

    FOUNTAIN VALLEY, CA 92708

    Phone: (657) 241-9440

    Fax: (714) 665-4601

    Type: Mailing

  • 17360, Brookhurst Street, Colonia Juarez, Fountain Valley, Orange County, California, 92708, United States

    ATTN: MCMF - CREDENTIALING DEPARTMENT

    FOUNTAIN VALLEY, CA 927083720

    Phone:

    Type: Mailing

  • Women's Hospital, 24411, Health Center Drive, Laguna Hills, Orange County, California, 92653, United States

    SUITE 680

    LAGUNA HILLS, CA 926533651

    Phone: (949) 268-4568

    Type: Location

  • 3640 NW Samaritan Dr Ste 120

    Corvallis, OR 973303738

    Phone: (541) 768-5223

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 32 Open Payments records for all available years, with a total value of $1,987.

Total Amount is formed as General ($1,987) + Research ($0) + Ownership ($0) = $1,987.

Last reported payment date: 2024-12-11 • Largest payer in this snapshot: Abbott Laboratories ($808).

Total Amount

$1,987

General + Research + Ownership

Payments

32

Total payment records

General Amount

$1,987

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-11

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2025-06-02

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 3 Medicare enrollment records; no due dates published yet.

Enrollment records

3

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20041119000821IPhysician AssistantCATBD
I20250326004152IPhysician AssistantCOTBD
I20250602000612IPhysician AssistantORTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 92708)

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Reviews

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Frequently asked questions

How do I look up MRS. IRENE KAJIYA NAGEL (P.A.-C) by NPI?
Use NPI 1255447496 when you need to reference MRS. IRENE KAJIYA NAGEL (P.A.-C) in forms, claims, or directories.
Is MRS. IRENE KAJIYA NAGEL (P.A.-C)'s enrollment marked active?
An active flag here means the NPI record is not in a deactivated state.
What does MRS. IRENE KAJIYA NAGEL (P.A.-C) treat or focus on?
Patients typically see MRS. IRENE KAJIYA NAGEL (P.A.-C) under the specialty Surgical Physician Assistant. Clinical services aligned with this taxonomy classification.
Where is MRS. IRENE KAJIYA NAGEL (P.A.-C)'s primary listing?
We display Fountain Valley, California because that is what the record indicates for MRS. IRENE KAJIYA NAGEL (P.A.-C).
What if Fountain Valley, California seems incomplete?
Street-level detail can be omitted — open the full address list for this NPI.

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