Welcome to Mountain View Surgical Associates
Serving the Parker, Castle Rock, Lone Tree, Centennial, and Frisco communities in Colorado.
Our goal is to provide the best possible care to our patients while providing the flexibility they need. At MVSA we believe that you are not your condition, but a person. We strive to treat you with professional and compassionate care during each step of your treatment.

What You Can Expect from Our Practice
A Caring Environment
We treat our patients with compassion and care in order to provide them with a comfortable experience. In most cases, we are able to see new patients within 24-48 hours.
Devoted Staff
Our staff of committed and knowledgeable health care professionals does an exceptional job of coordinating care, scheduling, and providing insurance and financial information. They welcome the opportunity to answer your questions.
Exceptional Surgeons
Our physicians have a well-earned reputation of being proficient and compassionate surgeons. Our surgeons partner with you to plan the best surgical care possible.
Advanced Care
Our board-certified physicians have extensive experience in all aspects of general surgery: trauma, robotic, laparoscopic, thoracic, vascular, and surgery of the breast. They use the most recent surgical techniques to treat a wide variety of conditions
What’s New at MVSA
Dr. Chris Winter at MVSA
Robotic-Assisted Surgery
Dr. Chris Winter at MVSA
Robotic-Assisted Surgery
Our Surgeons & Providers

Chris Winter, MD, FACS

Michael Bertocchi, MD, FACS

Christine Rogness, MD, FACS

John James, MD, FACS

Jeffrey Harr, MD, FACS

Tyler Chan, MD, FACS

Robert Weir, MD

Eliza “Shevie” Kassai, MD

Debra Lopez, NP-C

Lauren Whitsitt, PA-C

Charles Willett, PA-C

Specialties and Conditions
Trauma & General Surgery
Including Abdominal Wall Reconstruction (Hernia Repair), Appendectomy
Comprehensive Breast Care
Including Benign, Breast Pain, Cancer
Thoracic & Vascular Surgery
Including Benign Lung Disease, Lung Cancer, Rib Fracture Fixation, Peripheral Vascular Disease and Spontaneous Pneumothorax
Surgical Oncology (Cancer)
Including Breast, Colon, Rectum, Esophagus, Lung
Laparoscopic/Minimally Invasive Surgery
Including Adrenal, Colon, Gallbladder, Hernia
Robotic Surgery
Including Fundoplication, Gallbladder, Hernia
Endocrine Surgery
Including Thyroid Surgery, Parathyroid Surgery, Adrenal Surgery
Other
Including Hemorrhoidectomy, Lipoma removal, Muscle biopsy, Nerve biopsy
Offices in Parker, Castle Rock, Centennial, Sky Ridge and Frisco Colorado
Parker, Colorado
Sierra Building, 9399 Crown Crest Blvd #220,
Parker CO 80138
Telephone: 303-805-1855
Fax: 303-805-4421
Office Hours
Monday-Friday 8:30 am-5:00 pm
Castle Rock, Colorado
Alexander Building, 2352 Meadows Blvd #250
Castle Rock, CO 80109
Telephone: 720-379-6774
Fax: 720-379-6792
Office Hours
Monday-Friday 8:30 am-5:00 pm
Centennial, Colorado
14000 East Arapahoe Road, Suite 210
Centennial, CO 80112
Telephone: 720-738-3035
Fax: 720-242-7943
Office Hours
Monday-Friday 8:30 am-5:00 pm
Sky Ridge-Lone Tree, Colorado
Aspen Building, 10103 Ridgegate Pkwy. Suite 213
Lone Tree, CO 80124
Telephone: 720-738-3033
Fax: 720-738-3034
Office Hours
Monday-Friday 8:30 am-5:00 pm
Frisco, Colorado
360 Peak One Drive Suite #390
Frisco, CO 80443
Telephone: 970-668-4506
Fax: 720-738-3015
Office Hours
Monday-Friday 8:30 am-5:00 pm