Lina B Caldwell MD

Lina B Caldwell MD, a woman-owned, minority-owned sole proprietorship based in Long Beach, Mississippi, provides independent medical case reviews and consulting services to the Social Security Administration as a prime contractor under multiple Blanket Purchase Agreements. Dr. Caldwell is self-certified as a small disadvantaged business and operates exclusively in medical disability adjudication support—specifically, independent review of SSA disability claim files and medical consulting services to inform SSA's disability determination processes.

Lina B Caldwell MD operates under extreme customer concentration: 47 of 56 awards (84% of the award count) and $3.6 million of $5.1 million combined potential value flow from the Social Security Administration alone. All 56 awards across the portfolio are primes; the vendor carries no subcontract work. The work sits on five SSA BPAs, with the largest vehicle being Blanket Purchase Agreement SS041140039 (19 task orders, $986 thousand combined potential value), followed by Blanket Purchase Agreement 28321321AC0440003 (7 task orders, $794 thousand combined potential value). Recent work includes a June 2026 BPA call from SSA for 1,500 independent medical case reviews and 100 hours of consulting services valued at $158,738, a July 2025 BPA call valued at $155,606 for regional medical contractor services in SSA Region 4 (Atlanta area), and a September 2023 BPA call valued at $105,196.50 for independent case reviews and medical consulting services. Dr. Caldwell's clinical expertise centers on physical medicine and disability claim evaluation, delivering work within SSA's Atlanta regional office footprint with performance conducted from Long Beach, Mississippi.

Activity has declined markedly: the portfolio shows 56 total awards spanning from 2002 through June 2026, but the past five years record only six awards (2022–2026), averaging one per year. The source data captures a 24-year footprint, yet recent volume is minimal. In the next twenty-four months, two awards carrying combined potential value of $314 thousand reach ultimate completion, creating modest recompete exposure. The vendor's primary NAICS category is Offices of Physicians (all 56 awards), with PSC distribution split between Medical Consultation (39 awards) and other medical and expert-witness services (11 combined). Obligated funding across the portfolio totals $4 million (79% of combined potential value), indicating steady invoicing against a stable but narrow SSA base.