A dispute over more than $1.18 million in unpaid invoices for medical supplies has led to a federal lawsuit between two out-of-state companies, raising questions about contract enforcement and business practices in the healthcare supply chain. The complaint was filed by Rising Star Holdings, doing business as ACZ Distribution, in the United States District Court for the Eastern District of New York on June 18, 2026, against Mark Markland, NP in Family Health, P.C.
According to court documents, Rising Star Holdings is a Wyoming corporation with its principal place of business in Nevada. The company states that it distributes medical supplies and equipment under its registered trade name ACZ Distribution. The defendant, Mark Markland, NP in Family Health, P.C., is described as a New York professional corporation located at 870 Nostrand Avenue in Brooklyn.
The complaint outlines that on or about July 11, 2025, both parties entered into a Terms and Sales Agreement under which Rising Star agreed to supply medical products to Markland’s practice. In return, Markland was obligated to pay for these products according to the terms specified in the agreement. Rising Star asserts that this contract included provisions for interest on overdue payments at a rate of 1.5% per month and entitled them to recover attorney’s fees and costs if there was a breach.
Between July 11 and December 3 of 2025, Rising Star reports supplying various medical products to Markland’s practice under this agreement. The company issued multiple invoices during this period—listing specific invoice numbers and dates—with amounts ranging from approximately $4,999 up to nearly $195,161 per invoice. The total sum claimed due across all invoices is $1,181,508.62.
Rising Star further alleges that Markland submitted receipts or claims to Medicare for at least some of these purchased products and received reimbursement from Medicare accordingly. Despite this reimbursement and repeated demands for payment from Rising Star, the complaint states that "Markland has failed and refused to pay the outstanding balance due and owing." The plaintiff emphasizes that it "has performed all conditions, covenants, and promises required of it under the Terms and Sales Agreement."
The legal filing includes three counts: breach of contract; account stated; and unjust enrichment. For breach of contract (Count I), Rising Star claims it fully performed its obligations by supplying the agreed-upon products but did not receive payment as required by their agreement. For account stated (Count II), they argue that Markland received invoices totaling $1,181,508.62 without objection—thus acknowledging their correctness—and still failed to pay after repeated demands. Under unjust enrichment (Count III), Rising Star contends that Markland retained the benefit of supplied medical products without payment "which is unjust under the circumstances," resulting in damages equal to the amount owed plus interest and legal fees.
As relief from the court, Rising Star requests judgments against Markland on all three counts: breach of contract; account stated; and unjust enrichment. They seek an order directing payment of $1,181,508.62 plus prejudgment interest on damages as well as attorney’s fees and expenses incurred through this action. Additionally, they request any other relief deemed just by the court.
The complaint also notes that Rising Star has demanded a jury trial on all triable issues pursuant to Federal Rule of Civil Procedure 38(b). Legal representation for Rising Star Holdings is provided by attorney Mark R. Bagley (IL No. 6271579) of Hecht Schondorf LLC based in Northbrook, Illinois. The case is identified as Case No. 1:26-cv-03694.