Julia W. Tzeng, MD

Practice locations

Addresses where Julia W. Tzeng is enrolled with Medicare (CMS data updated October 2, 2026).

• 1524 McHenry AveModesto, CA 95350 (209) 572‑3880
• 9300 Valley Childrens PlMadera, CA 93636

Group practices

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

• Valley Childrens Medical Group50 clinicians in the group

Specialties

• Nephrologyprimary

Find other Nephrology doctors in California →

Other nephrologists in Modesto

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

• Tong Sun, MD
• Nadia Yousef, MD
• Sithu Lin, MD
• Smitha R. Anam, MD
• Meenal A. Shah, MD
• Swarna Byri, MD
• Kishore K. Kalluri, MD
• Yuqiang Ge, MD

All nephrologists in Modesto →

Other clinicians in Valley Childrens Medical Group

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

• Yoshihiro Ozaki, DO
• Javier V. Valero Fonseca, MD
• Archana Lingannan, MD
• Danielle Esters, MD
• Daniel I. Hernandez, MD
• Thu-Ba Leba, 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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
3. Medicare Care Compare — official Medicare tool to look up clinicians