Sigrid B. Tristan, MD

Practice locations

Addresses where Sigrid B. Tristan is enrolled with Medicare (CMS data updated October 2, 2026).

• 1601 Trinity StAustin, TX 78712 (833) 882‑2737

Group practices

Medicare enrollment lists Sigrid B. Tristan as a member of these groups (CMS data updated October 2, 2026).

• The University of Texas at Austin153 clinicians in the group
• University of Texas at Austin Dell Medical School151 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary

Find other Obstetrics/Gynecology doctors in Texas →

Other OB-GYNs in Austin

Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.

• John J. Thoppil, MD
• Lisa M. Bourbeau, DO
• Akua T. Afriyie Gray, MD
• Julia P. Gutierrez, MD
• Rachel Shepherd, MD
• Virginie N. Drummond, MD
• Cynthia Chaparro-Krueger, DO
• Denise L. Johnson, MD

All OB-GYNs in Austin →

Other clinicians in The University of Texas at Austin

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

• Karl M. Koenig, MD
• Eileen A. Choudhury Bowden, MD
• Sofia N. Silvestri, PA
• Alexandra Rossi, NP
• Jorge Almeida, MD
• Saleema Kherani Ali, 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