Matthew Sakumoto, MD

Medicare activity in 2024

Official CMS public-use data for Matthew Sakumoto, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)73 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)48 services
3. Assessment of emotional or behavioral problems (96127)41 services
4. Advance care planning, first 30 minutes (99497)25 services
5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)22 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 pressure57%
• High cholesterol57%
• Arthritis35%
• Chronic kidney disease26%
• Anxiety22%
• Diabetes19%

Hospitals where Matthew Sakumoto works

Medicare's Facility Affiliation Data lists Matthew Sakumoto 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.

• California Pacific Medical Center - Mission BernalSan Francisco, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050055
• California Pacific Medical Center- Van Ness CampusSan Francisco, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050047
• Novato Community HospitalNovato, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050131
• Peninsula Medical CenterBurlingame, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050007

Practice locations

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

• 3333 California StSan Francisco, CA 94118

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Francisco

Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.

• Yile Ding, MD
• Andrea Lim, MD
• Sonia Samagh, MD
• Amy Ou, MD
• Juan Caraballo, MD
• Charlotte Hurabielle Claverie, MD
• Veena Patel, MD
• Maian Ye, DO

All internal medicine doctors in San Francisco →

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