ROBERT L HSIUNG MD
NPI 1659392264
Anesthesiology in Seattle, WA
About Robert L Hsiung Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT L HSIUNG MD (NPI 1659392264) is an individual anesthesiology provider in Seattle, Washington, licensed in Washington (MD00046420) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Virginia Mason Medical Center, and maintains a secondary practice location in Tacoma.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Robert L Hsiung Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Robert Hsiung reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98101
- Reassigned Medicare billing, Washington enrollment
- 1,021 clinicians in this Medicare group
Bremerton, WA 98310
- Reassigned Medicare billing, Washington enrollment
- 1,526 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Virginia Mason Medical Center
Acute Care Hospitals · Seattle, WASt Joseph Medical Center
Acute Care Hospitals · Tacoma, WAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Robert Hsiung's NPI number?
The NPI number for Robert Hsiung is 1659392264. It was assigned to this individual provider in the NPPES registry on July 21, 2006.
Where is Robert Hsiung located?
Robert Hsiung practices at 1100 9th Ave, Seattle, WA 98101. The listed phone number is (206) 223-6600.
What is Robert Hsiung's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Robert Hsiung enrolled in Medicare?
Yes. Robert Hsiung is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Robert Hsiung's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Hsiung reassigns Medicare benefits to 2 organizations: Virginia Mason Medical Center (Seattle, WA) and Franciscan Medical Group (Bremerton, WA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Robert Hsiung's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Hsiung accept?
Health plans from Ambetter Health and Premera Blue Cross Blue Shield of Alaska list Robert Hsiung as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Robert Hsiung affiliated with any hospitals?
According to CMS data, Robert Hsiung is affiliated with Virginia Mason Medical Center and St Joseph Medical Center.
When was this NPI record last updated?
The NPPES record for Robert Hsiung was last updated on June 12, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.