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Emergency Medicine

Song-Yi Lee, MD

Works at hospitals in Antioch, CA · Walnut Creek, CA · California

Summary

Song-Yi Lee, MD (Emergency Medicine) is listed by Medicare at 2 hospitals in Antioch, CA and Walnut Creek, CA. NPI 1801236922. 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 Song-Yi Lee, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
13Years since medical school (graduated 2013)
State University Of New York Downstate Medical CenterMedical school
FemaleGender (as listed)
Permanente Medical Group IncGroup practice

Quick answers

Which hospitals does Song-Yi Lee work at?
Medicare's official clinician data lists Song-Yi Lee at 2 hospitals: Kaiser Foundation Hospital - Antioch and Kaiser Foundation Hospital - Walnut Creek. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Song-Yi Lee see patients?
Medicare's clinician data lists 1 practice location in Walnut Creek, CA. Call before your visit to confirm the address.
What is Song-Yi Lee's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Song-Yi Lee accept Medicare assignment?
Yes. Medicare's clinician data says Song-Yi Lee 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 Song-Yi Lee?
(925) 295-4000, as listed in official Medicare / NPI Registry data.
What is Song-Yi Lee's NPI number?
1801236922. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Song-Yi Lee works

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

Group practices

Medicare enrollment lists Song-Yi Lee as a member of this group (CMS data updated 2026-10-02).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Walnut Creek

Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.

All emergency medicine doctors in Walnut Creek →

Clinician information

CredentialMD
Medical schoolState University Of New York Downstate Medical Center
Graduation year2013
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1801236922
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