PacificSource Health Plans has an open network to providers who meet our minimum standards for credentialing. On an annual basis, PacificSource Health Plans reviews Primary care type providers, many specialties including Obstetrics, Dermatology, Allergy and Asthma, Orthopedic, Oncology, Psychiatry and Psychology against our established standards. Additional specialists are included if they meet our credentialing requirements. Minimum standards of availability measurements include provider to patient ratios, which vary based on county and population. Rural, Urban and Suburban counties are reviewed with separate standards based on the county classification. Members who reside in rural areas will likely have more miles to drive compared to members who reside in urban and suburban areas.