What's electron flow? Electron flow is what we think of as electrical current. We are familiar with two types of electron flow, Direct Current, or DC, and Alternating Current, or AC. Direct Current is the kind of electrical flow we get from batteries and solar cells, when electrons travel in only one direction.
Dermatologists can charge for a consultation, as specialists need a referral letter from a doctor to get paid, they said. The letter can be obtained from an outpatient clinic. The Morning Headlines Newsletter. Delivered daily to your inbox.
A referral is authorization from the patientâs Primary Care Physician (PCP) for the patient to see a specialist. A PCP is a family doctor, internist, or pediatrician. You only need a referral if your insurance company requires you to have one. The best way to know for sure is to contact your insurance company.