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Hospitalist

Sang Yim, MD

Works at hospitals in Riverside, CA · Mission Viejo, CA · California

Summary

Sang Yim, MD (Hospitalist) is listed by Medicare at 3 hospitals in Riverside, CA and Mission Viejo, CA. NPI 1003294661. 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 Sang Yim, 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

HospitalistPrimary specialty
YesAccepts Medicare assignment
11Years since medical school (graduated 2015)
Loma Linda University School Of MedicineMedical school
MaleGender (as listed)
Providence Medical FoundationGroup practice

Quick answers

Which hospitals does Sang Yim work at?
Medicare's official clinician data lists Sang Yim at 3 hospitals: Parkview Community Hospital Medical Center, Providence Mission Hospital and Riverside Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Sang Yim see patients?
Medicare's clinician data lists 2 practice locations, including Fullerton, CA and Mission Viejo, CA. Call before your visit to confirm the address.
What is Sang Yim's specialty?
Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
Does Sang Yim accept Medicare assignment?
Yes. Medicare's clinician data says Sang Yim 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 Sang Yim?
(714) 992-5350, as listed in official Medicare / NPI Registry data.
What is Sang Yim's NPI number?
1003294661. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sang Yim works

Medicare's Facility Affiliation Data lists Sang Yim 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 Sang Yim is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Sang Yim as a member of this group (CMS data updated 2026-10-02).

  • Providence Medical Foundation1,466 clinicians in the group

Specialties

Find other Hospitalist doctors in California →

Other hospitalists in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All hospitalists in California →

Clinician information

CredentialMD
Medical schoolLoma Linda University School Of Medicine
Graduation year2015
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003294661
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