Aetna is changing the standard method of reimbursing providers from Paper checks to Electronic Funds Transfer (EFT). All providers are required to enroll in EFT. This change is applicable to Medical and Dental providers. Providers must enroll in EFT through the CAQH online EFT Enrollment utility https://solutions.caqh.org or by printing an EFT enrollment form from www.aetnaeft.com. The service is free of charge. The enrollment window is open from May 1st thru July 1st.