Podiatry Staff

Meet Dr. Witt


Meet Dr. Lloyd





Christina is the Practice Administrator at Advanced Foot and Ankle Center.









Colleen has been with the practice since 1999. She is an integral part of the practice as the coder/biller. Colleen is an avid runner. She is a triathlete and is a four-time Boston Marathon finisher. Colleen is married with three children and lives in McKinney.



Irma was born and raised in Texas and recently moved to the Dallas area.  She has been in the medical field for 18 years.  She likes to travel, spend time with her family and attend various sports events with her grandchildren.  




Nora graduated from Texas Womans University with a Bachelor of Science in Biology and a Community Health Degree.  She also graduated Collin County Community College with an Associates of Arts in English.  She is a native Texan, Mother of 2 boys and married for 23 years.  In her free time she loves to hunt, fish and scuba dive.


Kevin has lived in Collin County for over 25 years.  He graduated from PCI Health Training Center with a 4.0 GPA!. In his free time he is either at his house relaxing or out somewhere fishing with his friends.    He is currently the Medical Assistant for Dr. Silvers. 



Amy is a Native Texan who attended the University of Texas, HOOK'EM HORNS!  Amy is a wife and mother living in Allen, Tx.  Amy loves spending time with her family (including Romeo her German Shephard) at the lake, cooking out on the grill, and watching football.  Go Cowboys!



Lori has lived in Collin County for the last 36 years.  In her spare time she loves concerts or Netflixing at home.  She has a Chihuahua named Tank that is her bestie.







Kristi is both California and Texas raised. She has an avid interest in the medical field. She spends the majority of her time laughing, learning, and loving with her family and friends. Kristi enjoys innovative art, all sports, and music.



McKinney Office

Prosper Office

Office Hours
Monday: 8:00 AM - 5:00 PM
Tuesday: 8:00 AM - 5:00 PM
Wednesday: 9:00 AM - 6:30 PM
Thursday: 8:00 AM - 5:00 PM
Friday: 7:30 AM - 4:00 PM