Tanzia A. Nijhum, MD

Practice locations

Addresses where Tanzia A. Nijhum is enrolled with Medicare (CMS data updated October 2, 2026).

• 4501 Sand Creek RdAntioch, CA 94531 (925) 813‑6500

Group practices

Medicare enrollment lists Tanzia A. Nijhum as a member of this group (CMS data updated October 2, 2026).

• Permanente Medical Group Inc10,996 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Antioch

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

• Kirsten A. Regalia, MD
• Wesley Y. Che, MD
• Virginia K. Scialanca, MD
• Abinaya Srikanthan, MD
• Pei-Tsui P. Wang, MD
• Sanna Fatima, MD
• Arjun Roy, MD
• Veenu G. Gupta, MD

All internal medicine doctors in Antioch →

Other clinicians in Permanente Medical Group Inc

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

• Anthony G. Retodo, MD
• Jorcyelin C. Ani
• Brenda V. Valdez Espitia
• Michael J. Inadomi, MD
• Suyapa G. Sarmiento, CP
• Mehvish Mahmood, 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