Meet Our Team

The providers at Audubon Orthotic & Prosthetic Services in Colorado Springs welcome you. Specializing in orthotics and prosthetics, we offer personalized care and state-of-the-art, custom-designed equipment.

Audubon Orthotic & Prosthetic Services

Tim Nelson, BOCO, Director

Tim Nelson - Director of Orthotics and ProstheticsDirector of Orthotics and Prosthetics

Tim was born and raised in Colorado Springs. He attended Western State College in Gunnison, Colorado, where he studied business management. After college he became a certified fitness instructor before attending the Colorado Springs Police Academy, from which he graduated in 1994.

While at the police academy, Tim began his own construction contracting company, which quickly grew and became successful. He discovered that he greatly enjoyed working with his hands and getting to see his visions go from ideas to completed projects.

In early 2001, Tim went back to school to pursue another area of study of great interest to him: science. For several years, Tim studied biology, anatomy and physiology, chemistry, physics, biochemistry, and architecture at Pikes Peak Community College.

In 2003, Tim saw the marriage of his two great interests – working with his hands to build things, and anatomy and physiology – when he accepted a job working for Audubon Orthotic & Prosthetic Services.

Drawing from his background in construction and applying his love of science, Tim is able to think creatively with his approach to patient care and build orthotics with innovative design and a mastery of form and function.

Dedicated to continuing his education and learning the newest advances in the field, Tim has attended multiple courses and conferences including:

  • Horton’s Stance Control Orthotic Knee Joint (SCOKJ)
  • Ottobock conventional locked KAFO’s and dynamic response AFO’s
  • Miami-J competency program
  • TCFlex total contact-total control orthotic management using the TCFlex AFO System
  • Orthotic management of deformational plagiocephaly and other head shape deformities
  • Multidisciplinary management of high risk diabetic feet

Additionally, Tim is a certified fitter for custom vascular garments for phlebology/lymphology. He has attended many workshops including fabrication workshops, technician workshops, Townsend Design bracing solutions, and College Park products. He became an ABC-certified orthotic fitter (CFO) in 2003 and in 2009 he became a BOC-certified orthotist (BOCO).

In 2013, Tim became the director of orthotics and prosthetics at Audubon O & P and enjoys serving the residents of Colorado Springs with their orthotic and prosthetic needs.

Outside of work, Tim enjoys spending time with his wife, children, and dogs as well as riding his motorcycle, reading, and photography. He also enjoys woodworking, building various projects, and inventing a new mousetrap, when time allows.


  • Business Management, Western State College
  • Architecture, Pikes Peak Community College
  • Biochemistry, Pikes Peak Community College

Clinical Background

  • Certified Orthotist (BOCO), 2009-Present
  • Certified Orthotic Fitter (CFO), 2003-2012
  • Certified in the Providence Nocturnal Scoliosis Orthoses, 2008
  • Certified Fitter for JOBST Custom Vascular Garments, 2003

Areas of Specialty

  • Stance control orthoses
  • Scoliosis bracing management
  • AFO and KAFO custom bracing
  • Management of plagiocephaly and other head shape deformities
  • Ligament and osteoarthritis knee bracing
  • Multidisciplinary management of high risk diabetic feet
  • Acute orthopedic trauma bracing


  • American Board for Certification (ABC) in Orthotics, Prosthetics, & Pedorthics
  • Board of Certification/Accreditation (BOC) Certified Orthotist

Duane Greeley, CPO

Duane Greeley - Certified Prosthetist/OrthotistCertified Prosthetist/Orthotist

Duane is a certified prosthetist and orthotist who has been with the Audubon O & P team since 2008. He began his health care career in 1972 as a technician and in 1978 he returned to school to pursue post-graduate studies in orthotics and prosthetics.

Duane keeps current in both fields by attending numerous yearly continuing education seminars as well as taking online credit courses to remain up-to-date in his disciplines.

Outside of work, Duane’s interests include camping and hiking with his wife and children, as well as various school activities his children are involved with. He also leads the worship praise team at his local church and coordinates the A/V team.


  • Radiologic Technology, Kettering College of Medical Arts, Kettering, Ohio, 1974
  • Orthotic and Prosthetic Practitioner Certificates, Century College, White Bear Lake, Minnesota, 1982 and 1989

Clinical Background

  • Radiologic Technologist, 1972-1990
  • Orthotic-Prosthetic Technician, 1978-1984
  • Certified Orthotic (CO) Practitioner, 1984-Present
  • Certified Prosthetic-Orthotic (CPO) Practitioner, 1994-Present

Areas of Specialty

  • Upper extremity conventional powered and electrically powered prosthetics
  • Higher activity lower limb prosthetics
  • Lower extremity knee control KAFO’s


  • Certified Prosthetist-Orthotist (CPO) by the American Board for Certification in Orthotics, Prosthetics, & Pedorthics (ABC)

Haeleigh Little - Ceritified Orthotic Fitter and Mastectomy FitterHaeleigh Little

CFO – Ceritified Orthotic Fitter and Mastectomy Fitter

Haeleigh has been with Audubon Orthotic and Prosthetic Services since 2017. Haeleigh started as the Patient Care Coordinator for the North office location and transitioned into the Certified Orthotic Fitter role in 2018 after she completed the American Board for Certification in Orthotics, Prosthetics, and Pedorthics. Haeleigh studied Psychology as well as Exercise Science at the University of Northern Colorado in Greeley, CO, emphasizing in biomechanics and kinesiology. She is also a local provider for fitting post-mastectomy supplies, including breast prostheses, bras, and lymphedema sleeves. Haeleigh’s role includes measuring and fitting patients with orthotic bracing for before and after orthopedic surgery, fitting post-mastectomy supplies, and fabricating orthotics and prosthetics in the lab on-site.

Haeleigh enjoys spending her free time hiking, camping, weight lifting, practicing archery, wood working, and baking.

John Callan - ABC Certified OrthotistJohn Callan

28 years clinical practice. ABC Certified Orthotist

Lower extremity, upper extremity and spine. Staff Orthotist with Dallas Easter Seals. President of John Callan Orthotic Services, Inc., 2001 – 2018, Dallas, TX and Colorado Springs, CO. Expanded practice to Wounded Warriors through Tripler Hospital, Honolulu, and Polio survivors in Colorado; specialized in energy storing, ground reaction carbon lower extremity orthoses.

International experience with Project Hope, Bosnia and Mexico. Joined Audubon Orthotic & Prosthetic Services, Colorado Springs, CO July, 2019.


Certified Orthotist

Company Name

Audubon Orthotic & Prosthetic Services

Dates EmployedJul 2019 – Present

Employment Duration8 mos

LocationColorado Springs, Colorado


Company Name

John Callan Orthotic Services

Dates EmployedAug 1992 – Present

Employment Duration27 yrs 7 mos

Certified Orthotist / Clinician

Company Name


Dates EmployedJun 1992 – Present

Employment Duration27 yrs 9 mos

LocationDallas, Texas Area, Colorado Springs, Colorado Area


University of North Texas

University of North Texas
Degree NameBachelor’s degree
Field Of StudyFine and Studio Arts

Shelby College
Degree NamePost Graduate Long Term Orthotic Certificate
Field Of StudyOrthotics

Skills & Endorsements

1. Product Development

See 6 endorsements for Product Development6

Brent Wright and 5 connections have given endorsements for this skill

2. Medical Devices

See 4 endorsements for Medical Devices4

D Moll PT,DPT,PCS and 3 connections have given endorsements for this skill

3. Customer Service

See 3 endorsements for Customer Service3

D Moll PT,DPT,PCS and 2 connections have given endorsements for this skill

What to Expect

Audubon Orthotic & Prosthetic Services

We take the guesswork out of the orthotic and prosthetic process. Our deep level of engagement with our patients enables us to help you understand what to expect when you receive an orthosis or prosthesis.

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Patient Testimonials

Since 2000, Audubon Orthotic & Prosthetic Services has helped hundreds of patients overcome trauma or the loss of a limb with custom-fitted orthotics and prosthetics. We love hearing their stories of courage and triumph.

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