Robert Hsiung, MD
NPI 1659392264 · Anesthesiology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Hsiung, MD is a Anesthesiology Physician provider in Seattle, WA (NPI 1659392264).
Provider details
- NPI number
- 1659392264
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00046420 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
149 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 42 | $220 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 32 | $85 |
| Anesthesia for Other Procedure on Upper Abdomen00790 | 31 | $282 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 28 | $45 |
| Anesthesia for Procedure on Chest With 1 Lung Inflated00541 | 16 | $544 |
Typical Medicare-allowed amounts for these services range $45–$544 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 1717 S J StTacoma, WA 98405-4933Phone: (253) 426-6341Fax: (253) 426-6344
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2024-06-12
- Certified
- 2024-06-12
Frequently asked questions
- What is Robert Hsiung's NPI number?
- Robert Hsiung's National Provider Identifier (NPI) is 1659392264, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Hsiung's specialty?
- Robert Hsiung is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Hsiung located?
- Robert Hsiung's practice location on file with NPPES is 1100 9th Ave, Seattle, WA 98101.
- What is Robert Hsiung's phone number?
- The practice phone number listed in the NPPES registry for Robert Hsiung is (206) 223-6600.
- Does Robert Hsiung accept Medicare?
- Robert Hsiung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Hsiung's NPI active?
- Yes — Robert Hsiung's NPI (1659392264) is active in the NPPES registry as of the last update on 2024-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.