When verifying if a doctor is in the Cigna Healthcare network, which of the following is correct? a. You should verify doctors and other providers using the Provider Lookup Tool, download the daily provider spreadsheets from the resource library and/or call the CARL Unit b. Any doctor in the Cigna Healthcare network is also in the Cigna Healthcare Medicaid network C. You only need to confirm that the doctor is in the network. No need to verify specialists or any other providers D. You should verify doctors and other providers by using Web MD and similar websites to verify that a doctor is in the netwo