Yuka Yamaguchi, MD

Medicare activity in 2024

Official CMS public-use data for Yuka Yamaguchi, 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)396 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)210 services
3. Automated urinalysis test (81003)208 services
4. Diagnostic exam of bladder and urethra using an endoscope (52000)139 services
5. Ultrasound measurement of bladder capacity after voiding (51798)135 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 cholesterol75%
• High blood pressure67%
• Arthritis40%
• Ischemic heart disease29%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)23%
• Osteoporosis19%

Hospitals where Yuka Yamaguchi works

Medicare's Facility Affiliation Data lists Yuka Yamaguchi 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.

• Peninsula Medical CenterBurlingame, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050007
• Sequoia HospitalRedwood City, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050197

Practice locations

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

• 123 S San Mateo DrSan Mateo, CA 94401 (650) 343‑4200
• 170 Alameda De Las PulgasRedwood City, CA 94062 (650) 369‑5811
• 301 Industrial RdSan Carlos, CA 94070
• 795 El Camino RealPalo Alto, CA 94301 (415) 600‑1020

Group practices

Medicare enrollment lists Yuka Yamaguchi as a member of this group (CMS data updated October 2, 2026).

• Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

• Urologyprimary

Find other Urology doctors in California →

Other urologists in San Mateo

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

• David J. Martin, MD
• William Brubaker, MD
• Josh Hsu, MD
• Ori Melamud, MD
• Rajesh Shinghal, MD
• Surat Phonsombat, MD
• Marina J. White, MD
• John A. Connolly, MD

All urologists in San Mateo →

Other clinicians in Sutter Bay Medical Foundation

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

• Luke V. Lee, MD
• Prachi Nene, MD
• Nazia R. Choudhury
• Megan E. Suttles, PA
• Michael L. Chiou, MD
• Kavita M. Reddy, 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