Genevieve L. O Sullivan, MD

Medicare activity in 2024

Official CMS public-use data for Genevieve L. O Sullivan, 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. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)130 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)84 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)75 services
4. Advance care planning, first 30 minutes (99497)44 services
5. Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (G0316)41 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 cholesterol62%
• Heart failure51%
• Chronic kidney disease47%
• Diabetes43%
• Depression42%

Hospitals where Genevieve L. O Sullivan works

Medicare's Facility Affiliation Data lists Genevieve L. O Sullivan 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.

• Confluence Health HospitalWenatchee, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500016

Practice locations

Addresses where Genevieve L. O Sullivan is enrolled with Medicare (CMS data updated October 2, 2026).

• 1201 S Miller StWenatchee, WA 98801 (509) 662‑2208

Group practices

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

• Central Washington Health Services Association721 clinicians in the group

Specialties

• Hospice/Palliative Careprimary
• Family Practicealso

Find other Hospice/Palliative Care doctors in Washington →

Other palliative care doctors in Washington

Clinicians with the same Medicare primary specialty in Washington — not a recommendation.

• Chad R. McBride, MD
• Laura S. Johnson, MD
• Ellyn M. Lee, MD
• Lisa K. Vande Vusse, MD
• Cameron A. Price, MD
• Ashley N. Gaing, DO
• Edward F. Dropcho, MD
• Kimberly Ha, MD

All palliative care doctors in Washington →

Other clinicians in Central Washington Health Services Association

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

• Niekol M. Hall, PA
• Sonyta Thai
• Steven Kao, MD
• Caleb R. Ambrose, PA
• Chipepo Mugala, PA
• Dennis Kirby, 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