Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Tristine Leigh Onuski

Individual provider Critical Care Medicine Nurse Practitioner · NPI 1639841018

Tristine Leigh Onuski is a Nurse Practitioner in Los Angeles, California. Qualified in 2021, 5 years ago. Practices with Cedars-Sinai Medical Center, a 795-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
5
Licensed in
CA
In the registry since
2021
Specialties on file
2
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Practice location Address checks out

757 Westwood Plz # 7ICU
Los Angeles, CA 90095-3311
Phone: (310) 267-7741
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 127 S San Vicente Blvd # A-6600, Los Angeles, CA 90048-3311 — (310) 423-6472

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 95018649 (CA)
Critical Care Medicine Nurse Practitioner Taxonomy 363LC0200X · Licence 95018649 (CA)

Record details

NPI number1639841018
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedOctober 4, 2021
Last updated in NPPESMay 8, 2023
Certification dateMay 8, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Cedars-Sinai Medical Center — 795 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients53
Services billed 83 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Cedars-Sinai Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 795 clinicians in the practice; 12 are shown here.

Other providers in Los Angeles