IndividualActiveAccepts Medicare

Grete Porteous, MD

NPI 1649210295 · Anesthesiology Physician · Seattle, WA

Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Provider details

NPI number: 1649210295
Entity type: Individual
Primary specialty: Anesthesiology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: A76493 (CA)

Specialties & taxonomies

Anesthesiology PhysicianPrimary207L00000XLicense MD60170125 (WA)
Allopathic & Osteopathic Physicians
Anesthesiology Physician207L00000XLicense A76493 (CA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(70/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
20 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
16 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)
Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811	16	$120

Typical Medicare-allowed amounts for these services range $120–$120 (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

1100 9th Ave

Seattle, WA 98101-2756

Phone: (206) 223-6980

Street-level locationGet directions

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Mailing address