• Primary/Family Medical Care
  • Pediatrics
  • Women's Health
  • Adult Wellness Care
  • Sports Physicals
  • Adolescent Medicine
  • Chronic Disease Management
  • Diabetic Retinopathy Screening
  • Immunizations
  • Care Coordination

Welcoming new patients!


Monday - Friday

    7:00 am - 6:00 pm


(307) 635-3618

Most insurance accepted. Please call us for more information or if you need assistance getting insurance coverage.  Ask about our sliding fee scale.
Pregunte acerca de nuestra escala de tarifas.

Our Medical Providers

Our Services



2508 E. Fox Farm Rd. 1-1A
Cheyenne WY 82007

Joyce Loos, NP-C
Adult and Geriatric NP

Joyce joined the Healthworks team in 2021. Born and raised in Alabama she earned her BSN in nursing from University of Alabama in Birmingham in 1989. She worked for over 20 years in Open Heart ICU and Home care. She completed the Adult and Geriatric Primary Care Nurse Practitioner program at University of Alabama in Birmingham in 2012. She trained in a FHQC clinic and residency at UAB Geriatrics. She relocated to Cheyenne, WY in 2013. She enjoys caring for adult patients in all stages of life.  Due to her home care experience with the elderly and specialization in Geriatrics, she enjoys working with elderly patients and their caregivers.  Using evidence-based practice she hopes to help all patients maintain their optimal health.  She wants to help patient and caregivers in coordination with other health services, establish individualized goals to reach and maintain their health and well-being. When not working she enjoys spending time with her family, reading, traveling, Wyoming road trips, fishing,  camping and taking care of her furry pets. ​

Mattie Johnson, FNP-C

Mattie is a Family Nurse Practitioner who joined the HealthWorks team in November of 2022. Mattie is originally from the Midwest but has been a proud resident of Wyoming for almost 5 years. She graduated as a Registered Nurse in 2011 from North Dakota State Community and Technical College and received her Doctorate in Nursing Practice in 2022 from the University of Wyoming. She is passionate about providing meaningful healthcare that meets the needs of individuals and communities.  In her free time, she enjoys the outdoors, crafting, and spending time with her family, friends, and dogs.