Nathaniel Michael Robbins

Nathaniel Michael Robbins, a sole proprietor based in Norwich, Vermont, provides specialized medical expert and case review services to the federal government as a prime contractor on full-and-open federal awards, with all recent work concentrated in two customer agencies and no subcontract footprint. Robbins operates under PSC code Support-Professional: Expert Witness across 37 prime awards totaling $8 million in combined potential value, of which $451 thousand has been obligated to date.

Robbins' capability portfolio centers on independent medical case reviews, evaluations, and analyses supporting the Vaccine Injury Compensation Program (VICP) and the Countermeasures Injury Compensation Program (CICP) administered by HHS Health Resources and Services Administration. Representative work includes a $7.5 million single-award BPA (established February 2022, running through February 2027) under which HHS HRSA issues firm fixed-price calls for medical expert services; a $37,500 medical case review call issued September 3, 2026, with completion by August 2, 2027; a $24,375 call issued March 19, 2026 (Total Small Business set-aside) supporting both VICP and CICP, completing February 18, 2027; and a $54,375 time-and-materials purchase order from the Department of Justice Civil Division (March 2025, completing March 2028) for expert witness services in litigation support. Additional VICP calls range from $2,250 to $24,750, with most designated as Total Small Business set-asides, though the parent BPA carries no set-aside designation.

Customer concentration is stark and stable. HHS Health Resources and Services Administration Headquarters accounts for 25 awards (68% of count, $7.8 million or 97.5% of combined potential value), while the Department of Justice Civil Division holds 12 awards ($194 thousand or 2.4% of potential value). The two rankings align perfectly — HRSA dominates both volume and dollar magnitude. Work is performed entirely in Norwich, Vermont.

Robbins operates under a single parent vehicle: Blanket Purchase Agreement 75R60222A00008 with HHS HRSA, from which 24 task orders have been issued carrying $258 thousand in combined potential value. Recent activity has declined year over year — 11 awards in 2022, 7 in 2023, 9 in 2024, 5 in 2025, and 3 in 2026 — reflecting the fixed episodic nature of VICP case-review contracting. Four awards reach ultimate completion within the next twenty-four months with combined potential value of $137 thousand, presenting modest recompete exposure in that window. Robbins holds no IDIQs, GWACs, or agency-wide vehicles and maintains no prime-with-subs relationships.