Sheeren L. Masifi, MD

Medicare activity in 2024

Official CMS public-use data for Sheeren L. Masifi, 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.

Hospitals where Sheeren L. Masifi works

Medicare's Facility Affiliation Data lists Sheeren L. Masifi 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.

• Adventist Health CastleKailua, HI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 120006
• Straub Clinic and HospitalHonolulu, HI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 120022

Practice locations

Addresses where Sheeren L. Masifi is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

• 1001 Queen St, Suite 102Honolulu, HI 96814 (808) 462‑5200
• 1188 Bishop St, Suite 1603Honolulu, HI 96813 (808) 452‑1731
• 1245 Kuala St, Suite 103Pearl City, HI 96782 (808) 456‑2273
• 4210 Waialae Ave, Suite 501 503Honolulu, HI 96816 (808) 462‑5300
• 888 S King StHonolulu, HI 96813 (808) 522‑4000

Group practices

Medicare enrollment lists Sheeren L. Masifi as a member of these groups (CMS data updated October 2, 2026).

• Straub Clinic and Hospital419 clinicians in the group
• Castle Physician Network15 clinicians in the group
• Evolve Health LLC3 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Hawaii →

Other family doctors in Honolulu

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

• John E. Janikowski, DO
• Choon K. Yeo, MD
• Kapono I. Chang, DO
• Tammara S. Stefanelli, MD
• Elsa K. Tsutaoka, MD
• Eric G. Gresham, MD
• Christine A. White, MD
• Sydney Stegall, MD

All family doctors in Honolulu →

Other clinicians in Straub Clinic and Hospital

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

• Lilian Y. Kanai, MD
• Kathleen C. Holsaeter, DO
• Nai-Wen Chang, OD
• Lea U. Young, OD
• Courtney J. Gemmato, MD
• Jared I. Geesaman, NP

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