Zheng Ma, MD

Medicare activity in 2024

Official CMS public-use data for Zheng Ma, 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. Pathology examination of tissue using a microscope, intermediate complexity (88305)218 services
2. Special stained specimen slides to examine tissue, each additional procedure (88341)169 services
3. Special stained specimen slides to examine tissue, initial procedure (88342)69 services
4. Pathology examination of tissue using a microscope, moderately high complexity (88307)42 services
5. Special stained specimen slides to identify organisms including interpretation and report (88312)39 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 cholesterol68%
• Diabetes54%
• Arthritis33%
• Ischemic heart disease30%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)28%

Hospitals where Zheng Ma works

Medicare's Facility Affiliation Data lists Zheng Ma 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 Zheng Ma is enrolled with Medicare (CMS data updated October 2, 2026).

• 751 S Bascom Ave, Santa Clara Vly MedSan Jose, CA 95128 (408) 885‑5000

Group practices

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

• County of Santa Clara1,022 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in California →

Other pathologists in San Jose

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

• Michael Nguyen, MD
• Hui Pan, MD
• Caroline J. Temmins, MD
• Robert G. Atienza, MD
• Yan Huang, MD
• Rashmi Batra, MD
• Maryam Kooshesh, MD
• Nalini Bhat, MD

All pathologists in San Jose →

Other clinicians in County of Santa Clara

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

• Alfonso F. Banuelos Jr., MD
• Gary S. Lee, MD
• Tarak K. Trivedi, MD
• Amisha D. Desai, MD
• Michelle M. Doan, CP
• Dan C. Le, 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