Vargas Sara

Vargas Sara, a woman-owned small business sole proprietorship based in Brookline, Massachusetts, provides specialized medical expert services and case analysis to support federal vaccine injury litigation and compensation programs, operating exclusively as a prime contractor under small-business set-asides and full-and-open competitive designations.

Vargas Sara's customer concentration is extreme: 110 of 112 awards (98% of recent activity) fund the Department of Health and Human Services Health Resources and Services Administration's Vaccine Injury Compensation Program (VICP), with the remaining two awards supporting Department of Justice Civil Division litigative case support work. The combined potential value across all 112 awards is $6.5 million, but only $361 thousand (6%) has been obligated to date, indicating task-order pricing structures with low interim invoicing. All work is performed in Brookline, Massachusetts.

Vargas Sara operates under four active blanket purchase agreements with HHS/HRSA. The largest vehicle, BPA HHSH250201400075B, carries 46 task orders valued at $137 thousand combined; BPA HHSH250201000049B carries 34 task orders at $76 thousand; BPA 75R60221A00084 carries 15 task orders at $76 thousand; and BPA 75R60219A00121 carries 11 task orders at $58 thousand. The underlying single-award BPA with HRSA, established June 28, 2021, has a $249,999 ceiling and enables periodic firm fixed-price calls for medical expert services. Representative recent awards include a $7,491 purchase order from HHS/DOJ Civil Division (March 30, 2026) for expert witness and litigative case support; a $7,500 total small business set-aside BPA call from HRSA (March 4, 2026) for VICP medical expert services; and a $7,500 total small business set-aside BPA call (February 23, 2026) for medical case review analysis on vaccine injury claims. Earlier work includes $12,000 and $11,250 firm fixed-price calls on specific VICP case numbers (17-2061 and 21-1824) issued in 2022–2023.

Activity has been episodic over the last five years — three awards in 2022, one in 2023, four in 2024, two in 2025, and four in 2026 — with only three awards reaching ultimate completion inside the next twenty-four months, carrying a combined recompete exposure of $18 thousand. The vendor's footprint is classified under NAICS Offices of Physicians (except Mental Health Specialists) and PSC Support–Professional: Expert Witness, reflecting work as an independent medical practitioner rather than a service firm. Vargas Sara has no subcontract history and operates no parent contract vehicles; all activity flows through HRSA's single-award BPA and its subsidiary task orders.