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Physician

DAVID TRETHEWAY, MD

Pathology

SEATTLE, WA, 98195
NPI: 1073606117Also: Pathology

Contact

Pathology

SEATTLE, WA

PEACEHEALTH ST JOHN MEDICAL CENTER

360-414-2000

peacehealth.org/locations/longview

COLUMBIA MEMORIAL HOSPITAL

503-325-4321

columbiamemorial.org

Hospital Affiliations

Search procedure prices at these hospitals only · all code types (Lab Tests & Blood Work & related)

Common Procedures for Pathology

Tissue Biopsy AnalysisSurgical PathologyCytologyBlood Bank ConsultationFlow CytometryMolecular PathologyAutopsyFrozen Section Analysis

Based on specialty. Actual services may vary — contact the provider's office to confirm.

MIPS Quality Score

PY 2023
87.2/100High
Quality
88.5
Promoting Interoperability
100.0
Improvement Activities
40.0
Cost
68.9

MIPS (Merit-based Incentive Payment System) scores measure quality, cost, and improvement activities. Higher is better. Learn more at qpp.cms.gov

Procedure Pricing (Medicare Data)

Based on CMS Medicare Provider Utilization data for 2023. These represent what this physician charged Medicare, not necessarily what you would pay. Compare with other physicians

ProcedureAvg ChargeMedicare AllowedMedicare PaidServices
88342
Special stained specimen slides to examine tissue, initial procedure
$236$83$6613
88307
Pathology examination of tissue using a microscope, moderately high complexity
$164$80$64111
88173
Evaluation of fine needle aspirate with interpretation and report
$129$68$5470
88305
Pathology examination of tissue using a microscope, intermediate complexity
$113$49$36115
88331
Pathology examination of specimen during surgery, first tissue block
$111$61$4818
88360
Microscopic genetic analysis of tumor, manual
$79$41$3242
88112
Cell examination of specimen, selective cellular enhancement technique
$52$26$2148
88341
Special stained specimen slides to examine tissue, each additional procedure
$52$28$22336
88311
Preparation of tissue for examination by removing any calcium present
$22$12$1023
88304
Pathology examination of tissue using a microscope, moderately low complexity
$20$11$924

Compare prices for procedures performed by Pathology physicians

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Physician identity data from the NPPES NPI Registry. Last synced 3/28/2026.