Sari Umekawa, MD

Medicare activity in 2024

Official CMS public-use data for Sari Umekawa, 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. Critical care, first 30-74 minutes (99291)73 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)51 services
3. Critical care, each additional 30 minutes (99292)40 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)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 cholesterol75%
• Chronic kidney disease56%
• Diabetes54%
• COPD54%
• Heart failure47%

Hospitals where Sari Umekawa works

Medicare's Facility Affiliation Data lists Sari Umekawa 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.

• The Queens Medical CenterHonolulu, HI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 120001

Practice locations

Addresses where Sari Umekawa is enrolled with Medicare (CMS data updated October 2, 2026).

• 1301 Punchbowl StHonolulu, HI 96813
• 1380 Lusitana StHonolulu, HI 96813
• 91 -2127 Fort Weaver RdEwa Beach, HI 96706 (808) 691‑3000

Group practices

Medicare enrollment lists Sari Umekawa as a member of these groups (CMS data updated October 2, 2026).

• Queens University Medical Group614 clinicians in the group
• The Queens Medical Center192 clinicians in the group

Specialties

• Critical Care (Intensivists)primary
• Pulmonary Diseasealso

Find other Critical Care (Intensivists) doctors in Hawaii →

Other critical care doctors in Honolulu

Clinicians with the same Medicare primary specialty in Honolulu, HI — not a recommendation.

• Michael Tang, MD
• Neha Kumar, MD
• Mark A. Valdez, MD
• Sunghyun Lee, MD
• Alexandra Brito, MD
• Brent K. Tatsuno, MD
• Lillian A. Umbarger, MD
• Krystle Salazar, MD

All critical care doctors in Honolulu →

Other clinicians in Queens University Medical Group

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

• Maureen Tanumihardja, NP
• Keisuke Miyamoto, MD
• Gregory P. Thibault, MD
• Kira M. Mau, NP
• Shivani S. Chaudhary, MD
• Jessica Blair

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