Alvin J. Yamamoto, MD

Medicare activity in 2024

Official CMS public-use data for Alvin J. Yamamoto, 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. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)6,927 services
2. X-ray of chest, 1 view (71045)1,798 services
3. Ct scan of abdomen and pelvis with contrast (74177)347 services
4. Ct scan head or brain without contrast (70450)298 services
5. Injection, gadolinium-based magnetic resonance contrast agent, not otherwise specified (nos), per ml (A9579)290 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 pressure75%
• High cholesterol75%
• Arthritis54%
• Diabetes38%
• Ischemic heart disease38%
• Chronic kidney disease36%

Hospitals where Alvin J. Yamamoto works

Medicare's Facility Affiliation Data lists Alvin J. Yamamoto 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.

• Mercy General HospitalSacramento, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050017
• Mercy Hospital of FolsomFolsom, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050414
• Mercy Medical Center ReddingRedding, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050280
• Mercy San Juan Medical CenterCarmichael, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050516
• Methodist Hospital of SacramentoSacramento, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050590

Practice locations

Addresses where Alvin J. Yamamoto is enrolled with Medicare (CMS data updated October 2, 2026).

• 1380 Lead Hill Blvd, Suite 100Roseville, CA 95661 (916) 535‑2030

Group practices

Medicare enrollment lists Alvin J. Yamamoto as a member of this group (CMS data updated October 2, 2026).

• Dignity Health Medical Foundation1,184 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in California →

Other radiologists in Roseville

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

• Huu Ninh V. Dao, MD
• Ella S. Benoza, MD
• Vartan M. Malian, MD
• Christopher K. Hoffman, MD
• John P. McGahan, MD
• Roben D. Ahdoot, MD
• Govind Mukundan, MD
• Himaja Peddi, MD

All radiologists in Roseville →

Other clinicians in Dignity Health Medical Foundation

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

• Richard T. Tu, MD
• Anne Marie E. McDaniel, MD
• Naser M. Jamal, DO
• Vivian Bui, MD
• Patricia Moreno-Guadamuz
• Ameera Ahmed, 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