Mary W. Yamashita, MD

Medicare activity in 2024

Official CMS public-use data for Mary W. Yamashita, 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. Screening mammography (77067)601 services
2. Screening 3d breast mammography (77063)599 services
3. Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)165 services
4. Diagnostic mammography of both breasts (77066)103 services
5. Limited ultrasound scan of 1 breast (76642)100 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 cholesterol74%
• High blood pressure60%
• Arthritis50%
• Osteoporosis29%
• Diabetes22%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)21%

Hospitals where Mary W. Yamashita works

Medicare's Facility Affiliation Data lists Mary W. Yamashita 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.

• Glendale Adventist Medical CenterGlendale, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050239
• Keck Hospital of USCLos Angeles, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 050696
• USC Verdugo Hills HospitalGlendale, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050124

Practice locations

Addresses where Mary W. Yamashita is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.

• 125 W Hungtington DrArcadia, CA 91007
• 1500 San Pablo StLos Angeles, CA 90033
• 1516 San Pablo StLos Angeles, CA 90033 (800) 872‑2273
• 1516 San Pablo St, Suite L3100Los Angeles, CA 90033 (800) 872‑2273
• 1520 San Pablo StLos Angeles, CA 90033 (800) 872‑2273

Group practices

Medicare enrollment lists Mary W. Yamashita as a member of this group (CMS data updated October 2, 2026).

• USC Care Medical Group Inc1,380 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in California →

Other radiologists in Arcadia

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

• Purushottam K. Dixit, MD
• Abdul Rahman Abualruz, MD
• Lucia Flors Blasco, MD
• Andy A. Aoki, MD
• Kenneth Tan, MD
• Dorian M. Lapalma, MD
• Christopher Ebner, MD
• Christopher Toensing, MD

All radiologists in Arcadia →

Other clinicians in USC Care Medical Group Inc

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

• Andrew J. Garcia, MD
• Alice L. Yun, MD
• Purushottam K. Dixit, MD
• Alan H. Lee, MD
• Abdul Rahman Abualruz, MD
• Justyne Decker, 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