Tristan R. Osborn, MD

Medicare activity in 2024

Official CMS public-use data for Tristan R. Osborn, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)135 services
2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)97 services
3. Critical care, first 30-74 minutes (99291)64 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)48 services
5. Critical care, each additional 30 minutes (99292)32 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 cholesterol75%
• Arthritis51%
• Heart failure50%
• Ischemic heart disease48%
• Chronic kidney disease45%

Hospitals where Tristan R. Osborn works

Medicare's Facility Affiliation Data lists Tristan R. Osborn 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.

• Evergreenhealth Medical CenterKirkland, WA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 500124
• Evergreenhealth MonroeMonroe, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500084

Practice locations

Addresses where Tristan R. Osborn is enrolled with Medicare (CMS data updated October 2, 2026).

• 12040 NE 128th StKirkland, WA 98034 (425) 899‑1000

Group practices

Medicare enrollment lists Tristan R. Osborn as a member of this group (CMS data updated October 2, 2026).

• King County Public Hospital District No 2608 clinicians in the group

Specialties

• Hospitalistprimary
• Internal Medicinealso

Find other Hospitalist doctors in Washington →

Other hospitalists in Kirkland

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

• Siri E. Ito, MD
• James Kuo, MD
• Kathryn J. Horton, MD
• Rajneet S. Lamba, MD
• Kelly Fujikawa, MD
• Peter Schoonmaker, MD
• Scott W. Fetty, MD
• Jared W. Remington, MD

All hospitalists in Kirkland →

Other clinicians in King County Public Hospital District No 2

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

• Chelsey A. Myers, PA
• Claudia M. Kalotay, PA
• Susan H. Whang, MD
• Noor Amro, NP
• Siri E. Ito, MD
• Shane R. Egresi, PA

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