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KATHERINE NGUYEN
NPI 1871235556
Internal Medicine in West Hills, CA

Active since April 12, 2022PECOS Enrolled
22110 ROSCOE BLVD STE 100, WEST HILLS, CA 91304(818) 481-0118 Get Directions Write a Review

NPPES record last updated: June 19, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 19, 2025, Jul 27, 2022, Apr 12, 2022 (3 updates tracked since 2022).

About Katherine Nguyen NPPES

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

KATHERINE NGUYEN (NPI 1871235556) is an individual internal medicine provider in West Hills, California, licensed in California (20A21616) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1871235556
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKATHERINE NGUYEN
Location Address22110 ROSCOE BLVD STE 100West Hills, CA 91304-3875
Mailing Address22110 Roscoe Blvd Ste 100West Hills, CA 91304-3875
Phone(818) 481-0118
Sole ProprietorNo
Enumeration DateApril 12, 2022
Last NPPES UpdateJune 19, 20253 updates tracked since enumeration
NPPES CertifiedJune 19, 2025
✔ NPI 1871235556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · 20A21616
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
22110 ROSCOE BLVD STE 100, West Hills, CA 91304
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katherine 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91304 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 2

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

HOANG NGUYEN M.D
Family Medicine
22110 ROSCOE BLVD STE 100
WEST HILLS, CA 91304
Los Angeles County (818) 481-0118
HOANG DUC NGUYEN, M.D., INC.
Clinic/Center (Primary Care)
22110 ROSCOE BLVD STE 100
CANOGA PARK, CA 91304
Los Angeles County (818) 481-0118

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 Katherine Nguyen's NPI number?

The NPI number for Katherine Nguyen is 1871235556. It was assigned to this individual provider in the NPPES registry on April 12, 2022.

Where is Katherine Nguyen located?

Katherine Nguyen practices at 22110 Roscoe Blvd Ste 100, West Hills, CA 91304. The listed phone number is (818) 481-0118.

What is Katherine Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Katherine Nguyen enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for Katherine Nguyen was last updated on June 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.