JULIEN NGUYEN
NPI 1417377714
Internal Medicine - Critical Care Medicine in Sylmar, CA

Q: What is Julien Nguyen's NPI number?

The NPI number for Julien Nguyen is 1417377714. It was assigned to this individual provider in the NPPES registry on April 24, 2014.

Q: What is Julien Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Julien Nguyen was last updated on August 7, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since April 24, 2014PECOS Enrolled

14445 OLIVE VIEW DR, #2B182, SYLMAR, CA 91342(818) 364-3205(818) 364-4573 Get Directions Write a Review

NPPES record last updated: August 7, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 7, 2024, Aug 1, 2022, Dec 8, 2021 (3 updates tracked since 2021).

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About Julien Nguyen NPPES

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

JULIEN NGUYEN (NPI 1417377714) is an individual critical care medicine provider in Sylmar, California, licensed in California (A141012) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1417377714

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameJULIEN NGUYEN

Location Address14445 OLIVE VIEW DR, #2B182Sylmar, CA 91342-1437

Mailing Address7601 Imperial HwyDowney, CA 90242-3456

Phone(818) 364-3205

Fax(818) 364-4573

Sole ProprietorNo

Enumeration DateApril 24, 2014

Last NPPES UpdateAugust 7, 20243 updates tracked since enumeration

NPPES CertifiedAugust 7, 2024

✔ NPI 1417377714 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in CA · A141012

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

14445 OLIVE VIEW DR, Sylmar, CA 91342

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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)

Julien Nguyen 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

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

County Of Los Angeles Auditor Controller

0.2 mi

General Acute Care Hospital

14445 OLIVE VIEW DR
Sylmar, CA 91342

Reassigned Medicare billing, California enrollment
Medicare enrollment name: County Of Los Angeles
1,939 clinicians in this Medicare group

NPI 1134159320 (818) 364-3031

Southern California Permanente Medical Group

4.9 mi

Health Maintenance Organization

19105 GOLDEN VALLEY RD
Santa Clarita, CA 91387

Reassigned Medicare billing, California enrollment
13,921 clinicians in this Medicare group

NPI 1316409410 (877) 608-0044

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 91342 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

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 20

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

COUNTY OF LOS ANGELES AUDITOR CONTROLLER

General Acute Care Hospital

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (818) 364-1555

DENNIS POON

Nurse Practitioner (Family)

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (747) 210-3000

SERENA KE MD

Student in an Organized Health Care Education/Training Program

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (747) 210-3205

DR. PAUL I LIU M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

14445 OLIVE VIEW DR, ROOM 1A116
SYLMAR, CA 91342

Los Angeles County (818) 364-4033

DR. ARTHUR JENG M.D.

Internal Medicine (Infectious Disease)

14445 OLIVE VIEW DR, 2B182
SYLMAR, CA 91342

Los Angeles County (818) 364-3205

MRS. CECILIA CORONADO PTA

Physical Therapy Assistant

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (747) 210-4245

COUNTY OF LOS ANGELES AUDITOR CONTROLLER

General Acute Care Hospital

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (818) 364-1555

MR. ANDRIY A KUZNETSOV PT

Physical Therapist

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (818) 364-4245

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 Julien Nguyen's NPI number?

The NPI number for Julien Nguyen is 1417377714. It was assigned to this individual provider in the NPPES registry on April 24, 2014.

Where is Julien Nguyen located?

Julien Nguyen practices at 14445 Olive View Dr #2b182, Sylmar, CA 91342. The listed phone number is (818) 364-3205.

What is Julien Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Julien Nguyen enrolled in Medicare?

Yes. Julien Nguyen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Julien Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Julien Nguyen reassigns Medicare benefits to 2 organizations: County Of Los Angeles Auditor Controller (Sylmar, CA) and Southern California Permanente Medical Group (Santa Clarita, 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 Julien 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 Julien Nguyen was last updated on August 7, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.