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Compare the published Medicare service mix of Sari Umekawa, M.D. with clinicians in the same registry specialty: Critical Care (Intensivists) · Pulmonary Disease (CMS).

HONOLULU, HI · Exact areaEdit location

2024 published service data · 22 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Thomas Jon Uyehara Wong, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Critical care, each additional 30 minutes (99292)
74%Service-mix similarityView profile →

Christopher Andrew Fiack, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
65%Service-mix similarityView profile →

Brent Jitsuo Matsuda, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
58%Service-mix similarityView profile →

Thomas Scott Gallacher, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
57%Service-mix similarityView profile →

James Yang, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
52%Service-mix similarityView profile →

Takkin Lo, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
48%Service-mix similarityView profile →

Reid K Ikeda, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
46%Service-mix similarityView profile →

Renee Susanne Nelson, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
35%Service-mix similarityView profile →

Ernie Mun Sung Yim, M.D.

Internal Medicine · Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
35%Service-mix similarityView profile →

Bradley Kenkou Tokeshi, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
32%Service-mix similarityView profile →

Eric Alan Crawley, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
30%Service-mix similarityView profile →

Katsufumi Nishida, M.D.

Pulmonary Disease (CMS) · Honolulu, HI

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
27%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.