Hamish Greenaway, MD
NPI 1457671356 · Anesthesiology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hamish Greenaway, MD is a Anesthesiology Physician provider in Seattle, WA (NPI 1457671356).
Provider details
- NPI number
- 1457671356
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 60474172 (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
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
49 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 Extensive Surgery on Spine00670 | 14 | $488 |
| Anesthesia for Other Procedure on Upper Abdomen00790 | 12 | $306 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 12 | $42 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 11 | $132 |
Typical Medicare-allowed amounts for these services range $42–$488 (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
Registry dates
- Enumerated
- 2010-06-03
- Last updated
- 2014-09-30
Frequently asked questions
- What is Hamish Greenaway's NPI number?
- Hamish Greenaway's National Provider Identifier (NPI) is 1457671356, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hamish Greenaway's specialty?
- Hamish Greenaway is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Hamish Greenaway located?
- Hamish Greenaway's practice location on file with NPPES is 1959 Ne Pacific St, Seattle, WA 98195-0001.
- What is Hamish Greenaway's phone number?
- The practice phone number listed in the NPPES registry for Hamish Greenaway is (206) 598-4260.
- Does Hamish Greenaway accept Medicare?
- Hamish Greenaway is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hamish Greenaway's NPI active?
- Yes — Hamish Greenaway's NPI (1457671356) is active in the NPPES registry as of the last update on 2014-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.