New integration connects Vivian, the largest healthcare talent marketplace, with Hallmark’s Workforce Intelligence and Enablement Platform-streamlining travel nurse and allied health clinician placements. SAN FRANCISCO, Oct. 29, 2025 (GLOBE NEWSWIRE) -- Vivian Health, the largest online marketplace for healthcare talent serving more than 2.5 million clinicians, and Hallmark Health Care Solutions, Inc., the leader in workforce intelligence and enablement, today announced a strategic partnership designed to t ...