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

Katherine Stiene, MD

Individual provider Emergency Medicine Physician · NPI 1992201420

Katherine Stiene, MD practises Emergency Medicine in Los Angeles, California. Graduated from State University of New York Downstate Medical Center in 2018, 8 years ago. Practices with South Coast Emergency Medical Group Inc, a 33-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
8
Trained at
State University of New York Downstate Medical Center
Licensed in
CA
In the registry since
2018
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2051 Marengo St
Los Angeles, CA 90033-1352
Phone: (323) 409-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 165023 (CA)

Record details

NPI number1992201420
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 3, 2018
Last updated in NPPESSeptember 9, 2019

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK DOWNSTATE MEDICAL CENTER
Graduated 2018 (8 years in practice)
Group practice South Coast Emergency Medical Group Inc — 33 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 patients627
Services billed 978 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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 South Coast Emergency Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 33 clinicians in the practice; 12 are shown here.

Other providers in Los Angeles