Steven Euston Johnson, DO
Emergency Medicine Physician · Los Angeles, CA
Steven Euston Johnson, DO is an emergency medicine physician with a practice address in Los Angeles, California, and NPI 1659803328, issued on Mar 31, 2017. Check the license (California 20A19348, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven Euston Johnson
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 20A19348 CA
5101025417 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1500 San Pablo St, Los Angeles, CA 90033
- Phone
- (323) 442-8500
- Enumerated
- Mar 31, 2017
- Record last updated
- May 22, 2025
- Medicare enrollment
- Enrolled (PECOS I20230522002653); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1500 San Pablo St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Hadi Abou El Hassan, MDNeurology Physician1053995720
- Taaha Adamji, MDStudent in an Organized Health Care Education/Training Program1770414377
- Nikhil AggarwalStudent in an Organized Health Care Education/Training Program1144029596
Verify Steven Euston Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A19348Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average emergency medicine physician in 2024
45 Medicare Part D claims for 33 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Cep America - CaliforniaColton, CA
- Usc Care Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven Euston Johnson among 7,751 emergency medicine physician records in California
Steven Euston Johnson, DO is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 78% of them.
- NPI issued2017 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2017 · median 2011 among the 4,560 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Los Angeles → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Deirdre Anglin, MDLos Angeles, CA 900331306932025
- Joseph BaltrushesLos Angeles, CA 900331629152178
- Aaron Bright, M.D.Los Angeles, CA 900331023054087
- Christopher Celentano, MDLos Angeles, CA 900331972516417
- Christine DinuzzoLos Angeles, CA 900331952456741
- Marc Eckstein, M.D.Los Angeles, CA 900331922010867
- Sean Henderson, M.D.Los Angeles, CA 900331205887064
- Helen Ho, MDLos Angeles, CA 900331447208962
Common questions
What is Steven Euston Johnson, DO's NPI number?
Steven Euston Johnson, DO's National Provider Identifier (NPI) is 1659803328, issued on Mar 31, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Steven Euston Johnson, DO located?
The NPPES record lists a practice address at 1500 San Pablo St, Los Angeles, CA, 90033. Phone: (323) 442-8500. Providers update this record themselves, so call before visiting.
How can I verify Steven Euston Johnson, DO's license?
NPPES lists California license number 20A19348, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Steven Euston Johnson, DO prescribe under Medicare Part D?
In 2024, Steven Euston Johnson, DO had 45 Medicare Part D claims for 33 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.