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

Anesthesiology

Siyeon Seong, MD

Works at hospitals in Issaquah, WA · Seattle, WA · Washington

Summary

Siyeon Seong, MD (Anesthesiology) is listed by Medicare at 2 hospitals in Issaquah, WA and Seattle, WA. NPI 1679060362. 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 Siyeon Seong, 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
8Years since medical school (graduated 2018)
University Of Vermont College Of MedicineMedical school
MaleGender (as listed)
Physicians Anesthesia Service PLLCGroup practice

Quick answers

Which hospitals does Siyeon Seong work at?
Medicare's official clinician data lists Siyeon Seong at 2 hospitals: Swedish Issaquah and Swedish Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Siyeon Seong see patients?
Medicare's clinician data lists 1 practice location in Seattle, WA. Call before your visit to confirm the address.
What is Siyeon Seong's specialty?
Medicare lists Anesthesiology as the primary specialty.
Does Siyeon Seong accept Medicare assignment?
Yes. Medicare's clinician data says Siyeon Seong 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 Siyeon Seong?
(206) 386-2742, as listed in official Medicare / NPI Registry data.
What is Siyeon Seong's NPI number?
1679060362. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Siyeon Seong works

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

Group practices

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

  • Physicians Anesthesia Service PLLC172 clinicians in the group

Specialties

Find other Anesthesiology doctors in Washington →

Other anesthesiologists in Seattle

Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.

All anesthesiologists in Seattle →

Clinician information

CredentialMD
Medical schoolUniversity Of Vermont College Of Medicine
Graduation year2018
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1679060362
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