Each person licensed pursuant to chapter 18.22 RCW must be clearly identified to the public as a doctor of podiatric medicine at every establishment in which he or she is engaged in the practice of podiatric medicine and surgery. Such identification must indicate the name of the licensee at or near the entrance to the licensee's office. Only the names of people actually practicing at a location may appear at that location or in any advertisements or announcements regarding that location. The name of an individual who has previously practiced at a location may remain in use in conjunction with that location for a period of no more than one year from the date that person ceases to practice at the location.