Asuncion F Martinez, MD

Medicare activity in 2024

Official CMS public-use data for Asuncion F Martinez, 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.

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%

Hospitals where Asuncion F Martinez works

Medicare's Facility Affiliation Data lists Asuncion F Martinez 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.

• Santa Clara Valley Medical CenterSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050038

Practice locations

Addresses where Asuncion F Martinez is enrolled with Medicare (CMS data updated October 2, 2026).

• 1993 McKee RdSan Jose, CA 95116 (408) 885‑5000
• 751 S Bascom AveSan Jose, CA 95128
• PO BoxLos Angeles, CA 90074

Group practices

Medicare enrollment lists Asuncion F Martinez as a member of this group (CMS data updated October 2, 2026).

• County of Santa Clara1,022 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Jose

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

• Andrew T. Kwa, MD
• Jenny Liu
• Kaleem Naasira, MD
• Hemali A. Sudhalkar, MD
• Hardeep Kour, MD
• Wendy Zhou, DO
• Maria Lucinda D. Esmundo, MD
• Malvika Lall, MD

All internal medicine doctors in San Jose →

Other clinicians in County of Santa Clara

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

• Jenny Liu
• Andrea M. Tom, MD
• Samikshya Neupane, MD
• Sarah N. Namath, MD
• Luhua Cheng, MD
• Sreekumar Nair, 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