Meet Our Southern Colorado Board Certified Practitioners

We want you to be comfortable with your medical provider. UFMC employs some of the Southern Colorado’s most knowledgeable, well-trained physicians and nurse practitioners. Their expertise includes up-to-date training on the latest in medical treatments and advances paired with decades of experience. Your trust in our physicians and practitioners and their medical recommendations is what our practice is built on.

	Lawrence C. Anaya, MD Dr. Lawrence Anaya, MD is a New Mexico native who has lived in Pueblo since 1985. He moved here to complete his Family Medicine Residency training at Southern Colorado Family Medicine. Dr. Anaya obtained his Bachelor’s degree from New Mexico State University and graduated from Medical School at University of New Mexico School of Medicine. He strives for excellence in his medical practice and is Board Certified in Family Medicine. He loved the small town feel of Pueblo and joined University Family Medicine Center where he still practices. Dr. Anaya is married and has 2 children. He has been very active within the community and has served on several Board of Directors of different organizations, including Sangre de Cristo Hospice, Rosemont Museum, Boys and Girls Club of Pueblo, Morton Elementary Oversight Committee, Pueblo Country Club and YMCA of Pueblo. He is also the Medical Director of Crossroads Turning Point.  His outside office interests include fly fishing, skiing, hiking, biking, golf, travel and spending time with his family. Contact Dr. Anaya
	Gwynn E. Antonson, DO Dr. Gwynn Antonson grew up in Pueblo. She received her undergraduate degree from Colorado State University-Fort Collins in 2004 and her doctorate degree from Kansas City University of Medicine and Biosciences in 2008. Her family medicine residency was completed at Aria Health in Philadelphia, PA and UMDNJ in New Jersey. Her first year of practice was in the position of Medical Director of Bariatric Services at Adirondack Medical Center in upstate New York. Dr. Antonson is happy to return to Pueblo, CO where she can be closer to family and start practicing at University Family Medicine Center. She is Board Certified in Family Medicine and Board Eligible in Bariatric Medicine . Her special interests include bariatric medicine (weight loss/obesity treatment) bio-identical hormone replacement therapy and dermatology. In her free time Dr. Antonson enjoys traveling, cooking, camping, golfing, swimming, watching the Broncos, and spending time with her family. She is happily married to her husband Brett, who is also a Pueblo native. Contact Dr. Antonson
	Laura A. McMahon, FNP-C Laura McMahon is a respected Family Nurse Practitioner at University Family Medicine. She is a Colorado native who grew up in the Arkansas Valley and has always had a passion for helping people. After graduating from Swink High School, she attended Regis University, in Denver Colorado, to obtain her Bachelors in Nursing. Upon receiving her degree in 2003, Laura obtained a job at Swedish Medical Center in Englewood. There she worked on the Multi Trauma Unit focusing on trauma victims and spinal cord injuries. After moving back to Pueblo to be closer to family, she decided to obtain a Masters in Nursing while she worked in the ICU at St. Mary Corwin. Laura graduated in 2009 from the University of Colorado in Colorado Springs with her Masters in Nursing as a Family Nurse Practitioner. She loves family practice and sees patients of all ages keeping her days exciting. Laura’s loves of her life are her two daughters and being able to serve the citizens of this region. Contact Laura
	Cheryl B. Wills, DO Dr. Wills is a native of  Northern Colorado and a proud alum of the University of Northern Colorado in Greeley.  She pursued her medical education at Kirksville College of Osteopathic Medicine and graduated in 1988. Her experience includes work at Lakeview Hospital in Milwaukee, WI and family residency at Des Moines General Hospital in Iowa before coming to Colorado. Acknowledging  her own high standards in medicine, she became Board Certified attaining national recognition through the ABMS for her medical  knowledge, experience, and skills.  Dr. Will’s Board Certification elevates her credentials beyond that of the standard medical license and validates her extensive medical knowledge. Dr. Wills fell in love with family practice recognizing her enjoyment for treating the full-spectrum of family needs. A devoted wife and mother, Dr. Wills  is happily married with two children.  Her love of medicine is equally matched with her enjoyment of gardening, sports activities, and spending time with her family. Contact Dr. Wills
	Marissa Cassio Marissa Lussier is a certified Family Nurse Practitioner at University Family Medicine. She was born and raised in Pueblo, Colorado. She is a high school graduate from Pueblo West High. She graduated from Colorado State University-Pueblo with a Bachelor’s of Science in Nursing. With her degree she worked at Parkview Medical Center and St. Mary Corwin Hospital as a Registered Nurse. She worked in same day surgery and a medical surgical floor/neuro-trauma step down unit. In 2015, Marissa returned to Colorado State University-Pueblo to pursue her Masters in Nursing. She graduated with honors and completed her Family Nurse Practitioner and Acute Care Adult/Gerontology Nurse Practitioner. She loves working with her patients and taking care of their family needs. Marissa loves spending time with her husband and family here in Pueblo. She also enjoys going to the gym, crafting, traveling, and anything outdoors. Contact Marissa
	Brooke DeWeese Brooke DeWeese is a Family Physician Assistant who grew up in Pueblo. After graduating as Salutatorian from Pueblo County High School, she earned her Bachelor’s of Science Degree in Chemistry and Biology from Colorado State University. She then went on to attend the Physician Assistant program at Midwestern University in Glendale, AZ where she obtained a Master’s Degree of Medical Sciences in Physician Assistant Studies. After becoming a licensed Physician Assistant, Brooke moved back to Pueblo to be closer to family and began working as a Family Medicine PA. She is passionate about helping others and truly cares about all of her patients. Her specific interests include pediatrics and women’s health, but she is happy to see patients of all ages. When not at work, Brooke enjoys outdoor activities, traveling, and spending time with her family, especially her two young children who are the loves of her life. Contact Brooke