Meet The Staff

Amy Chan

Physician Assistant

Amy was born and raised in Los Angeles, CA and attended the University of California - Irvine to study biology. She worked as an EMT in the Los Angeles area prior to moving to Idaho to attend Idaho State University, graduating from their physician assistant program in 2017. She has since stayed in the Boise area to practice medicine and has grown to love the area, its people, and the outdoors. She spent 4 years practicing family medicine in rural Oregon, and now assists Dr. Williams in the clinic and operating room. Her experience working in a tight knit community has carried on with her, as she continuously aims to provide the best care with close follow up, open communication, and empathy.

Amy Chan, PA
Sayra Cisneros

Sayra Cisneros

Medical Assistant

Sayra has been working as a medical assistant for over 7 years. In that time she has worked in dialysis, family medicine, and rheumatology clinics. Sayra enjoys working with Dr. Williams and learning about general surgery. She speaks both English and Spanish. When she's not working she likes to spend her free time with her daughter, family and her two dogs Toby and Bleu.

Lisa Jack

Office Manager

Lisa began her career in the medical field as an X-Ray Tech in Colorado over ten years ago after many years in the marketing field. She has a background in Urgent Care, Mental Health and Work Comp, with both clinical and administrative experience. Lisa is new to the Boise area but loving all that Idaho has to offer! She and her husband love spending time with their two fur kids Bella and Gigi and enjoy traveling and exploring great food and wine in their free time.

Making a positive impact on patient’s lives is why Lisa chose the career path she did and she is thrilled to be working with Capital Surgical Associates and the high level of expertise and care that each doctor brings to the group. Dr Williams makes such an impact on these patient’s lives and treats them like family every step of the way and is extremely proud to be a part of the practice.

Sayra Cisneros

Tawnya Mckague


My name is Tawnya, I am in the billing and coding dept of Capital Surgical Associates. I began my journey in healthcare by going to MA school and working in a busy family practice. Later I went to a surgery center billing office and in the middle of that got certified in Billing and Coding. Now I am home here at Capital Surgical Associates. I enjoy the challenges of this busy practice. My home time consists of a graduating senior daughter who is busy in FFA and 4H with a herd of Boer goats and a commercial beef herd and dairy heifers. Married 33 years. I am a grandma to 2 of the most wonderful babies and my son serves in the US Army. Life is so good!

Boise's Top Rated General Surgeon
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