No. Koyalik and Kotlik are two separate communities in Alaska—not the same place.
Kotlik is a Yup'ik village in the Kusilvak Census Area, located on the Yukon River delta near the Bering Sea. Koyalik (less commonly referenced) is a distinct location. The similar spelling reflects transliteration variations from Yup'ik, but they are geographically and administratively different settlements.