If you are a an existing ASH Practitioner and lost or never received your account information package please contact a customer service rep at (800) 972-4226 for assistance (see other numbers below if your speciality is not Acupuncture). Alternatively you can also email a ASHLink customer care agent at service@ashn.com.
If you're looking for the church that is closest to the Catholic Church in terms of doctrine and practice, that would be the Eastern Orthodox churches. Even the Lutherans are far closer to the Catholic Church than the Methodists.
Catholicism is a denomination, and is, therefore, a subset of Christianity. All Catholics are Christians, but not all Christians are Catholics. A Christian refers to a follower of Jesus Christ who may be a Catholic, Protestant, Gnostic, Mormon, Evangelical, Anglican or Orthodox, or follower of another branch of the religion.