Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. S. John Whang, MD

Individual provider Emergency Medicine Physician · NPI 1851346548

Dr. S. John Whang, MD practises Emergency Medicine in Los Angeles, California. Graduated from University of California, Irvine, California College of Medicine in 1999, 27 years ago. Practices with Glendale Adventist Emergency Physicians Incorporated, a 26-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
27
Trained at
University of California, Irvine, California College of Medicine
Licensed in
CA
In the registry since
2006
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

3223 W 6th St Unit #1108
Los Angeles, CA 90020-5005 Not confirmed with CMS for 11 years — call before visiting
Phone: (323) 633-2399
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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 A92903 (CA)

Record details

NPI number1851346548
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 23, 2006
Last updated in NPPESJune 5, 2015

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Glendale Adventist Emergency Physicians Incorporated — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 patients561
Services billed 802 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 Glendale Adventist Emergency Physicians Incorporated

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 26 clinicians in the practice; 12 are shown here.

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