Sasha O. Joseph, MD

Medicare activity in 2024

Official CMS public-use data for Sasha O. Joseph, 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. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)361 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)126 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)30 services
4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)18 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)17 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 pressure75%
• High cholesterol72%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)45%
• Arthritis43%
• Chronic kidney disease38%
• Diabetes37%

Hospitals where Sasha O. Joseph works

Medicare's Facility Affiliation Data lists Sasha O. Joseph 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.

• Tacoma General Allenmore HospitalTacoma, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500129
• 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 Sasha O. Joseph is enrolled with Medicare (CMS data updated October 2, 2026).

• 825 Eastlake Ave ESeattle, WA 98109 (206) 288‑1000

Group practices

Medicare enrollment lists Sasha O. Joseph as a member of this group (CMS data updated October 2, 2026).

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

Specialties

• Medical Oncologyprimary
• Internal Medicinealso

Find other Medical Oncology doctors in Washington →

Other oncologists in Seattle

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

• Heather A. Parsons, MD
• Gentry George T. King, MD
• Evan T. Hall, MD
• Song Zhao, MD
• Jennifer M. Specht, MD
• Min S. Park, MD
• Petros Grivas, MD
• Christina S. Baik, MD

All oncologists in Seattle →

Other clinicians in The Association of University Physicians

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

• Srirama Josyula, MD
• Heather A. Parsons, MD
• Ivan Zvonar, MD
• Douglas J. Weaver, MD
• Andrew J. Portuguese, MD
• Amy M. Bauer, 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