- The Langdon Center for Laser & Cosmetic Surgery 03 September 2015•1 placemark The Langdon Center for Laser and Cosmetic Surgery is located on the beautiful Connecticut Shoreline in Guilford. Dr. Robert Langdon is board-certified in both Cosmetic Surgery and Dermatology. Dr. Langdon's patients are comfortable and confident with his extensive background of over 20 years in laser and cosmetic surgery. Dr. Langdon literally wrote the book on laser and cosmetic surgery (Understanding Cosmetic Laser Surgery)! Dr. Langdon and his staff are among the most experienced body sculpting surgery teams in the US — just one of the reasons his patients confidently refer others.