Katherine Kostroun, MD
Reproductive Endocrinologist · Aspire Fertility-San Antonio, San Antonio, TX
Photo: aspirefertility.com.
Specialty: Reproductive Endocrinology & Infertility (clinic biography)
Training: MD, Baylor College of Medicine; OB/GYN residency and REI fellowship, UT Health San Antonio (clinic biography)
Focus areas: PCOS, diminished ovarian reserve, recurrent pregnancy loss and natural cycle embryo transfers (clinic biography)
Contact & booking (through the clinic)
Clinic biography and contact options ↗ · clinic profile on TFI
You book directly with the clinic.
Sources
Last updated: November 6, 2026
· Clinic bio page (aspirefertility.com)
· Federal NPI registry (NPI 1750888707)
· PubMed author search
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