Garrett Alcorn, MD
NPI 1891784468 · Clinical Pathology/Laboratory Medicine Physician · Burien, WA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Garrett Alcorn, MD is a Clinical Pathology/Laboratory Medicine Physician provider in Burien, WA (NPI 1891784468).
Provider details
- NPI number
- 1891784468
- Entity type
- Individual
- Primary specialty
- Clinical Pathology/Laboratory Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00021159 (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
20 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
660 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 591 | $80 |
| Surgical Pathology, Gross and Microscopic Examinations, for Prostate Needle Biopsy, Any MethodG0416 | 34 | $411 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 18 | $36 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 17 | $50 |
Typical Medicare-allowed amounts for these services range $36–$411 (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
- 2005-10-17
- Last updated
- 2011-09-19
Frequently asked questions
- What is Garrett Alcorn's NPI number?
- Garrett Alcorn's National Provider Identifier (NPI) is 1891784468, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Garrett Alcorn's specialty?
- Garrett Alcorn is listed in the NPPES registry with a primary specialty of Clinical Pathology/Laboratory Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Garrett Alcorn located?
- Garrett Alcorn's practice location on file with NPPES is 16251 Sylvester Rd Sw, Burien, WA 98166-3017.
- What is Garrett Alcorn's phone number?
- The practice phone number listed in the NPPES registry for Garrett Alcorn is (206) 431-5221.
- Does Garrett Alcorn accept Medicare?
- Garrett Alcorn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Garrett Alcorn's NPI active?
- Yes — Garrett Alcorn's NPI (1891784468) is active in the NPPES registry as of the last update on 2011-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.