Dr. McKitterick has more than 30 years of experience in primary care. She is known for being down to earth, kind, conscientious, and thoughtful. In her free time, she enjoys gardening, reading, cooking, hiking mountain trails, and spending time with family.

Jeff is described as compassionate, lighthearted and engaging. When he's not seeing patients, he enjoys ultralight backpacking, golf, live music, and theatre.

Dr. Lewis is the Medical Director of Primary Care for the Denver area. He has been named a Top Doctor by 5280 Magazine for multiple years in a row. Dr. Lewis is described as relational, joyful, and a person of common sense. When not seeing patients, he enjoys skiing, golfing, gardening, and spending time with his granddaughter.

Candace J. Bassett is a Certified Physician Assistant with extensive experience in providing preventative, chronic, and acute care to patients across various age groups. She performs a range of medical procedures, including digital blocks, toenail removals, cyst and lipoma excisions, punch biopsies, and laceration repair. Candace is known for being dependable, kind, and truthful. In her free time, she likes... Read More about Candace Bassett, PA

Dr. Kaczmarczyk enjoys tennis, snow skiing, and camping with his wife and two sons.

Raised in Colorado, Kara received an undergraduate degree in molecular, cellular and developmental biology from the University of Colorado, Boulder. She continued her education at Johns Hopkins University in Baltimore, Maryland, where she earned both a bachelor's and master's degree in nursing. Kara has worked in orthopedics, gynecology and family medicine. She is a board-certified family nurse practitioner and practices... Read More about Kara R. Marcinek, NP

John R Willard DO - Willard Family Practice has been providing top-notch health care services to families for more than 20 years. Over the years, we have become the most trusted family practice in Centennial, CO. With a Doctor of Osteopathic Medicine (DO), and nurse practitioners on our team, we are able to provide our patients with the excellent health... Read More about Willard John R DO - Dr Willard's Family Practice

Dr. Gulur is a medical doctor, but he prefers to go by his first name, Dhruva. He brings an array of expertise including mindfulness practices, cognitive behavioral therapy, and practical preventive care. He helps patients navigate challenges like substance use recovery, anxiety, depression, stress, burnout, ADHD, and weightrelated concerns. He has also won patient experience awards multiple times. He is... Read More about Dhruva Gulur, MD

Dr. Kari Pagano is a family medicine physician in Denver. She was raised in eastern Michigan and earned a bachelor's degree in biomedical science from Western Michigan University, in Kalamazoo, Michigan. She earned a medical degree from Wayne State University, in Detroit, Michigan. Dr. Pagano completed a residency with Midland Family Practice Residency in Michigan before becoming a family physician at... Read More about Kari Pagano, MD

Brenda is a compassionate and dedicated family nurse practitioner providing comprehensive primary care to patients of all ages, from pediatrics to geriatrics. She earned her Bachelor of Science in Nursing from Nova Southeastern University and her Master of Science in Nursing from the University of South Florida. She is board-certified by the American Academy of Nurse Practitioners. "I am caring,... Read More about Brenda Slossberg, NP

As a certified physician assistant, Christina Karl, provides family medicine care focusing on acute care, chronic care management, and disease prevention. She is dedicated to improving health equity and quality of life by focusing on preventive care that promotes health and wellness and managing existing acute and chronic conditions through evidence-based approaches. Christina earned her Master of Health Science from... Read More about Christina J. Karl, PA

Brian hails from Tyler, Texas but most recently spent eight years living with his family in Quito, Ecuador. He earned his undergraduate degree from Texas Tech University before graduating from Regis University with a Master of Science as a Family Nurse Practitioner. His clinical interests include family practice care, namely holistic and preventive healthcare. Married with three children, Brian understands... Read More about Brian K. Wallace, NP

Elizabeth "Libby" Kuszajewski, PA, is a versatile and highly motivated physician assistant based in Aurora, CO, with a strong foundation in family medicine. She provides comprehensive, patient-centered care across all stages of life, with a primary clinical interest in patient education. Libby believes that empowering individuals with knowledge about their health is key to improving outcomes and building meaningful, long-term... Read More about Elizabeth Kuszajewski, PA

Michelle is a board-certified physician assistant with a background in family medicine and acute care. She is deeply committed to delivering high-quality, compassionate healthcare to underserved populations and is known for her collaborative approach to patient care. Michelle enjoys the fast-paced nature of managing acute conditions and performing minor in-office procedures that provide immediate results and relief. With experience caring... Read More about Michelle Koszalka, PA

Chris Fischer chose to work in primary care to build long-lasting patient-provider relationships. He enjoys managing patients' preventive health, chronic conditions, and acute symptoms. After practicing as a medical assistant for six years, Chris returned to school and earned a bachelor’s degree in nursing from the Denver College of Nursing. As a registered nurse, he grew to appreciate the need... Read More about Chris E. Fischer, NP

Dr. Ray received his medical degree from the University of Illinois and completed a family medicine residency at Indiana University. He has bachelors degrees in English and Physiology. In addition, he did graduate studies in literature and biology. He is board certified in family medicine.Dr. Ray moved to Colorado from Illinois in 2005 with his wife and four daughters. He... Read More about Steven Ray, MD

A Colorado native, Sameerah Wong, MD, is a trusted and compassionate healthcare professional based in Aurora, CO. Board-certified and dedicated to providing comprehensive care, Dr. Wong treats patients of all ages, from newborns to seniors, with a focus on building long-term relationships and promoting overall well-being. Dr. Wong believes in supporting individuals in leading healthier, more fulfilling lives by nurturing... Read More about Sameerah A. Wong, MD

Welcome to the Medical Practice of Martin Hannemann, M.D., Andrew Sarka, M.D., Mark Nathanson, D.O., Adora Olson, P.A-C., and Meagan Maher, P.A-C. Our staff will do their very best to make your visit a comfortable and enjoyable one.