Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Anesthesiology

Steven E. Johnson, DO

Works at hospitals in Colton, CA · Los Angeles, CA · California

Summary

Steven E. Johnson, DO (Anesthesiology) is listed by Medicare at 2 hospitals in Colton, CA and Los Angeles, CA. NPI 1659803328. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Steven E. Johnson, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

AnesthesiologyPrimary specialty
YesAccepts Medicare assignment
9Years since medical school (graduated 2017)
MaleGender (as listed)
USC Care Medical Group IncGroup practice (+1 more)

Quick answers

Which hospitals does Steven E. Johnson work at?
Medicare's official clinician data lists Steven E. Johnson at 2 hospitals: Arrowhead Regional Medical Center and Keck Hospital of USC. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Steven E. Johnson see patients?
Medicare's clinician data lists 7 practice locations, including Los Angeles, CA and Colton, CA. Call before your visit to confirm the address.
What is Steven E. Johnson's specialty?
Medicare lists Anesthesiology as the primary specialty.
Does Steven E. Johnson accept Medicare assignment?
Yes. Medicare's clinician data says Steven E. Johnson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Steven E. Johnson?
(800) 872-2273, as listed in official Medicare / NPI Registry data.
What is Steven E. Johnson's NPI number?
1659803328. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Steven E. Johnson works

Medicare's Facility Affiliation Data lists Steven E. Johnson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Steven E. Johnson is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Steven E. Johnson as a member of these groups (CMS data updated 2026-10-02).

  • USC Care Medical Group Inc1,380 clinicians in the group
  • Cep America - California1,292 clinicians in the group

Specialties

Find other Anesthesiology doctors in California →

Other anesthesiologists in Los Angeles

Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.

All anesthesiologists in Los Angeles →

Clinician information

CredentialDO
Graduation year2017
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659803328
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians