Leaf Leif E PHD

Leaf Leif E PHD, a sole proprietorship based in Lawrence, Kansas, provides independent medical consultant services to the Social Security Administration, conducting disability claim case file reviews and medical opinions in support of the agency's disability benefit determination process. The vendor operates exclusively as a prime contractor (100% of recent awards) on full-and-open BPA calls with no set-aside designation, competing on commercial terms across the SSA's regional medical consultants program.

Leaf Leif E PHD serves a single federal customer. The Social Security Administration accounts for 43 of 44 recent awards (98% of both award count and combined potential value of $6.1 million). The vendor's work is geographically concentrated in SSA Region 7, which encompasses Kansas, Missouri, and Nebraska, with place of performance in Lawrence, Kansas. Each BPA call order typically funds approximately 660 independent disability case file reviews, with individual task order ceilings ranging from roughly $58 thousand to $132 thousand. Representative recent work includes a $132.4 thousand firm fixed-price BPA call awarded June 5, 2026, for medical consultant services supporting Region 7's disability adjudication program through June 30, 2027; a $115.6 thousand call awarded September 1, 2025, for the same regional service area; and a $69.4 thousand call awarded March 1, 2025, also for Region 7 case reviews. All awards operate under the vendor's existing parent Blanket Purchase Agreement Indefinite Delivery Vehicle with SSA, which carries a total ceiling of $2.67 million and extends through February 28, 2026.

The vendor holds three active BPA parent vehicles with the SSA: Blanket Purchase Agreement SS07164C011 (15 task orders, $619 thousand combined potential value), Blanket Purchase Agreement 28321321AC0740025 (12 task orders, $820 thousand combined potential value), and Blanket Purchase Agreement SS071140018 (12 task orders, $619 thousand combined potential value). Activity has remained flat at two awards per year across 2022 through 2025, with one award in 2026 to date. Only one award (combined potential value $132 thousand) reaches ultimate completion within the next twenty-four months, creating minimal near-term recompete exposure. The vendor's capability footprint sits in NAICS 6111 (Offices of Physicians except Mental Health Specialists) and NAICS 6112 (Offices of Physicians, Mental Health Specialists), with PSC codes anchored to Medical-Medical/Psychiatric Consultation. Combined dollars obligated stand at $2.5 million against $6.3 million combined potential value, reflecting a 40% execution rate across the portfolio.