Pioneer Medical Group was acquired by PIH Health on July 1, 2019. You can expect to receive the same excellent quality of care from your primary care physician and specialists, without interruption. We look forward to being a trusted partner in your health and wellness. Pay Your Pioneer Medical Group Bill Login to Your Patient PortalBilling‧Health Insurance Plans‧Find a Doctor‧Patients & Visitors‧Emergency & Urgent Care‧Patient Forms & Instructions.