Katherine Marie Dederer, MD
I speak: English
My gender: Female
Where I practice
About me
I grew up in Pittsburgh, Pennsylvania and spent much of my childhood traveling to the Colorado mountains to visit family. As the daughter of an engineer and carpenter, I grew up around woodworking and learned to work with my hands at an early age. I also was active in a variety of sports, including competitive running and skiing; it was the desire to keep people active as well as the mechanical nature of orthopedics that primarily attracted me to the medical field.
About my practice
I enjoy the variety of conditions I get to care for in foot and ankle orthopedics. My philosophy of care is to treat the whole person instead of just their condition. I strive to understand each person’s unique goals and aspirations in order to develop a treatment plan to meet their needs. During my years of orthopedic training, I developed a diverse variety of surgical skills and experience including minimally invasive surgical techniques, arthroplasty, sports medicine, and non-surgical treatments for a wide variety of conditions. I look forward to meeting you at my office in Lone Tree!
How I thrive
I recharge by getting outdoors to enjoy skiing, mountain biking, trail running, and hiking around Colorado and the mountains. I also love to travel, cook, and play with my 2 cats. On the rare occasion when the weather doesn’t permit outdoor activities, I spend time reading and doing jigsaw puzzles.
Medical groups and plans
Colorado Permanente Medical Group
Lone Tree Medical Offices
Contact information
- Appointments/Cancellations/Information
- 303-338-4545
- Appointments/Cancellations/Information
- 1-800-218-1059 (toll free)
- TTY
- 711 (TTY for the hearing/speech impaired)
Hours:
- This location offers extended weekday hours.
- This location offers weekend hours.
Please call the office directly for information regarding hours.
Languages spoken by front-office staff:
EnglishPlans accepting new patients
- Child Health Plan Plus (CHP+)
- Colorado HMO/EPO
- KP Select
- Kaiser Permanente Colorado Option for Individual & Family
- Kaiser Permanente Colorado Option for Small Group
- Medicare-Denver Boulder
- Medicare-Northern Colorado
- Medicare-Southern Colorado
- Medicare/Medicaid Dual-Enrolled
Indicates if the clinician’s office/facility has accommodations for people with physical disabilities, including offices, exam room(s), and equipment.
My training, certifications & licensing
Medical school
Virginia Tech Carilion School of MedicineBoard certification
Orthopaedic Surgery
American Board of Orthopaedic SurgeryTo verify board certification for an individual practitioner, please visit the American Board of Medical Specialties, the American Medical Association, or the American Osteopathic Association websites.
Medical training
Fellowship
Surgery, Orthopaedic
Mercy Medical CenterResidency
Surgery, Orthopaedic
University of North Carolina HospitalsJoined Permanente Medical Group
2024Provider ID
029555My hospitals
This information is not available at this time.
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PHYSICAL DISABILITIES ACCOMMODATIONS
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This page was last updated on: 02/19/2026