My personal first and only impression of, Health Care Service Corporation (HCSC) /Hallmark Service Corporation, is that they are not professional.
I had two interviews (Subsidiary/Hallmark Services Corp) totaling more 3.5 hours of my time, and not once did they ever give me any feedback, either by email or phone. If I was truly one of their finalists, as the hiring manager said, you’d think they would have the class and corporate professionalism to inform the applicant when they have made a decision on a candidate. You would think the Hiring Manager would see to this as a professional courtesy to the applicant.