KATHY THANH NGUYEN AGACNP-BC
NPI 1437702552
Nurse Practitioner - Acute Care in Mission Viejo, CA

Active since July 17, 2019PECOS EnrolledAccepts Medicare Assignment
26732 CROWN VALLEY PKWY STE 351, MISSION VIEJO, CA 92691(949) 457-7900 Get Directions Write a Review

NPPES record last updated: June 13, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 13, 2023, Jul 17, 2019 (2 updates tracked since 2019).

About Kathy Thanh Nguyen Agacnp-bc NPPES

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

KATHY THANH NGUYEN AGACNP-BC (NPI 1437702552) is an individual acute care provider in Mission Viejo, California, licensed in California (95012247) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1437702552
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameKATHY THANH NGUYENCredential: AGACNP-BC
Location Address26732 CROWN VALLEY PKWY STE 351Mission Viejo, CA 92691-6374
Mailing Address26732 Crown Valley Pkwy Ste 351Mission Viejo, CA 92691-6374
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJuly 17, 2019
Last NPPES UpdateJune 13, 20232 updates tracked since enumeration
NPPES CertifiedJune 13, 2023
✔ NPI 1437702552 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License✔ Licensed in CA · 95012247
26732 CROWN VALLEY PKWY STE 351, Mission Viejo, CA 92691

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Kathy Thanh Nguyen Agacnp-bc 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 ID5395105613
PECOS Enrollment IDI20230719000195
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 Reassignment

Medicare enrollment records show Kathy Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Surgery
101 THE CITY DR S
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 180 clinicians in this Medicare group

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 92691 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 5

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

Surgery
26732 CROWN VALLEY PKWY STE 351
MISSION VIEJO, CA 92691
Nurse Practitioner (Acute Care)
26732 CROWN VALLEY PKWY STE 351
MISSION VIEJO, CA 92691
Surgery (Surgical Oncology)
26732 CROWN VALLEY PKWY STE 351
MISSION VIEJO, CA 92691
Ophthalmology (Retina Specialist)
26732 CROWN VALLEY PKWY STE 351
MISSION VIEJO, CA 92691
Physician Assistant
26732 CROWN VALLEY PKWY STE 351
MISSION VIEJO, CA 92691

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 Kathy Nguyen's NPI number?

The NPI number for Kathy Nguyen is 1437702552. It was assigned to this individual provider in the NPPES registry on July 17, 2019.

Where is Kathy Nguyen located?

Kathy Nguyen practices at 26732 Crown Valley Pkwy Ste 351, Mission Viejo, CA 92691. The listed phone number is (949) 457-7900.

What is Kathy Nguyen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Kathy Nguyen enrolled in Medicare?

Yes. Kathy Nguyen 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.

Which organization bills Medicare for Kathy Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathy Nguyen reassigns Medicare benefits to University Surgeons Of Orange A Medical Group (Orange, CA). The 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 Kathy Nguyen'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 Kathy Nguyen was last updated on June 13, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.