1. Home
  2. Directory
  3. California
  4. Los Angeles
  5. Nurse Practitioner
  6. NPI Profile

ISABELLE HSI-LIN OKA
NPI 1245181718
Nurse Practitioner in Los Angeles, CA

Active since February 09, 2026PECOS Enrolled
757 WESTWOOD PLZ, LOS ANGELES, CA 90095(310) 825-9111 Get Directions Write a Review

NPPES record last updated: June 1, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Isabelle Hsi-lin Oka NPPES

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

ISABELLE HSI-LIN OKA (NPI 1245181718) is an individual nurse practitioner in Los Angeles, California, licensed in California (95031007) and active in the NPI registry since February 2026. She is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1245181718
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameISABELLE HSI-LIN OKA
Location Address757 WESTWOOD PLZLos Angeles, CA 90095-8358
Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631
Phone(310) 825-9111
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateFebruary 9, 2026
Last NPPES UpdateJune 1, 2026
NPPES CertifiedJune 1, 2026
✔ NPI 1245181718 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · 95031007
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · Acute CareTaxonomy 363LA2100X · License 95031007 (CA)
757 WESTWOOD PLZ, Los Angeles, CA 90095
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Isabelle Hsi-lin Oka is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7517433626
PECOS Enrollment IDI20260416001838
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 90095 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 20

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

CATHERINE CHA MD
Anesthesiology
757 WESTWOOD PLZ
LOS ANGELES, CA 90095
Los Angeles County (310) 825-8041
DR. TIFFANY PRUGPICHAILERS PEDIGO M.D.
Pediatrics
757 WESTWOOD PLZ, B711 RRUMC
LOS ANGELES, CA 90095
Los Angeles County (310) 267-9129
SAMRAWIT ABRAHA
Anesthesiology
757 WESTWOOD PLZ
LOS ANGELES, CA 90095
Los Angeles County (310) 267-6629
KEN DEKITANI
Internal Medicine
757 WESTWOOD PLZ
LOS ANGELES, CA 90095
Los Angeles County (310) 267-7849
LAUREN M NESI
Urology
757 WESTWOOD PLZ
LOS ANGELES, CA 90095
Los Angeles County (310) 794-7700
JACQUELINE LABINS MD
Student in an Organized Health Care Education/Training Program
757 WESTWOOD PLZ
LOS ANGELES, CA 90095
Los Angeles County (310) 267-0903
JYODI DINESH MOHOLE MD
Student in an Organized Health Care Education/Training Program
757 WESTWOOD PLZ
LOS ANGELES, CA 90095
Los Angeles County (310) 267-9132
JASON THAMES HUYNH MD
Student in an Organized Health Care Education/Training Program
757 WESTWOOD PLZ
LOS ANGELES, CA 90095
Los Angeles County (310) 825-7375

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 Isabelle Oka's NPI number?

The NPI number for Isabelle Oka is 1245181718. It was assigned to this individual provider in the NPPES registry on February 9, 2026.

Where is Isabelle Oka located?

Isabelle Oka practices at 757 Westwood Plz, Los Angeles, CA 90095. The listed phone number is (310) 825-9111.

What is Isabelle Oka's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Isabelle Oka enrolled in Medicare?

Yes. Isabelle Oka is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Isabelle Oka was last updated on June 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.