Maria S. Tretiakova, MD

Medicare activity in 2024

Official CMS public-use data for Maria S. Tretiakova, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Pathology examination of tissue using a microscope, intermediate complexity (88305)152 services
2. Surgical pathology consultation and report on referred slides prepared elsewhere (88321)146 services
3. Pathology examination of tissue using a microscope, moderately high complexity (88307)118 services
4. Special stained specimen slides to examine tissue, each additional procedure (88341)83 services
5. Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method (G0416)64 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure74%
• High cholesterol71%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)70%
• Arthritis37%
• Ischemic heart disease27%
• Diabetes26%

Hospitals where Maria S. Tretiakova works

Medicare's Facility Affiliation Data lists Maria S. Tretiakova at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Harborview Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500064
• University of Washington Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 500008

Practice locations

Addresses where Maria S. Tretiakova is enrolled with Medicare (CMS data updated October 2, 2026).

• 1959 NE Pacific StSeattle, WA 98195 (206) 598‑4333

Group practices

Medicare enrollment lists Maria S. Tretiakova as a member of this group (CMS data updated October 2, 2026).

• The Association of University Physicians3,535 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in Washington →

Other pathologists in Seattle

Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.

• Eric Nguyen, MD
• Carolyn D. Jordan, MD
• Tracey L. Harbert, MD
• Erica Y. Kao, MD
• Sylvia Jang, MD
• Rebecca S. Treger, MD
• Sandra White, MD
• Aanand A. Patel, MD

All pathologists in Seattle →

Other clinicians in The Association of University Physicians

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Gaetan S. Habekoss, MD
• Jennifer A. Strand
• Michelle Tran
• Husitha Reddy Vanguru, MD
• Octavio Herrera, MD
• Anna M. Zemke, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians