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About Us

Our mission is to provide holistic healing, individualized for each patient. We are here to serve you, so that you can live life at its peak.

Our Values


We strive to provide an exceptional experience from the initial phone call to the last visit.  We are here to serve the people in our communities, utilizing our unique, God-given talents.


We seek to assist our patients in reaching their full potential, improving (growing) in mind, body, and spirit


We utilize our knowledge, collaboration amongst team members, and a holistic approach to healing to provide exceptional care to patients in a unique, individualized way.

Meet The Team

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Erin Fiedler, Physical Therapist

Doctor of Physical Therapy, PRC

Erin Fiedler is a doctor of physical therapy (DPT) and owner of Peak Motion Physical Therapy.  Following a series of personal and family injuries during her formative years, she decided to pursue a career in physical therapy.  Erin is passionate about making a difference in people’s movement patterns and lives!  She earned her Doctorate of Physical Therapy degree from the University of Nebraska Medical Center in 2016 and has been treating patients in Wyoming and South Dakota ever since.  Erin has a strong interest in Postural Restoration, which is a holistic treatment approach that helps to restore balance (symmetry) through proper movement and respiration (breathing) for decreased pain and improved function

When not in the clinic, you can find Erin spending time with her husband, two children, and vizsla, running, hiking, or baking something delicious!


Kim Cockrum, Physical Therapist, MPT

Hi! My name is Kim Cockrum. I have lived in and been practicing physical therapy in Spearfish since moving here in 2004. I absolutely love having the opportunity and privilege to serve the people in the community which I live. I am excited to be a part of the Peak Motion team that purposes to treat with a holistic approach. In addition to conventional physical therapy methods of evaluation and treatment, Postural Restoration (PRI) is an approach that I use to help restore balanced movement patterns for less pain and improved function. Outside of work I cherish spending time with family and friends and enjoy activities in the hills year round.

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Adriel Lehtola, Occupational Therapist OTR/L

Adriel recently moved to the area from Minnesota and is excited to be starting at Peak Motion Physical Therapy. She received her undergraduate and graduate degree in Occupational therapy from St Catherine University in St. Paul, MN. Adriel wished to become an occupational therapist in middle school and loves helping people live life to their fullest. Adriel has worked with people across the lifespan, from pediatrics to older adults and in various settings, including hospital, rehabilitation, and outpatient settings. She has special training in helping kids with feeding/eating difficulties. 


In her free time, Adriel loves to garden, read, get outdoors, run, cross-country ski, and make a good loaf of sourdough bread. 


Kristin Buckman, Certified Occupational Therapy Assistant (COTA)

Kristin Buckman grew up moving between Casper, WY and Menomonie, WI before settling in Sundance where she now lives with her husband, their first grade daughter Maya, and a sweet Cavachon pup named Otis. Kristin was drawn to OT because of the breadth and depth of the field, mixing science with creativity. She graduated with honors in 2016 from the Casper College OTA program; and has worked in pediatrics, geriatrics, and home health. She loves the challenge to help people find ways to maximize their independence, whatever their situation.

Kristin has many diverse interests (maybe too many!). She loves being outside doing “self-powered” activities ranging from skiing, rock climbing, canoeing, swimming, stand up paddle boarding, backpacking, biking, gardening, and more. She also loves getting artistic and enjoys painting, quilting, and drawing. Finally she loves to social dance and even teaches a class through the community outreach program. She has taught dance off and on since 2013 and goes to national competitions/conventions when time allows.

She is so happy to be working with Peak to bring OT to our community! 


Darcie Shoup, Office Manager (Spearfish)

I was born and raised in Spearfish, SD. I love camping, fishing, hunting, hiking and having Sunday funday with family–whether that's getting together for a meal, or adventures around the Black Hills.

I spent 15 years in the beauty industry, working at a couple salons in Spearfish.  Since then, I have been in the role of healthcare/receptionist for the last 10 years.

I have an amazing husband, 2 wonderful sons, and most recently have been blessed with a daughter-in-law, which is a nice change from all the boys!

I am truly blessed to have a loving family to spend time with and a beautiful area to live in.  Life is good!


Melissa Purvis, Office Manager (Sundance)

Hi there! My name is Melissa Purvis and I am the smiling face you see when you enter the Sundance office! I grew up in Spearfish, SD and recently moved to Sundance, WY. I graduated from Black Hills State University with an Associate degree in Applied Health Sciences and a Bachelor of Science degree in Business Administration with a Management specialization. Being on the Peak Motion team is such a blessing and I’m thankful to be a part of a clinic that is so patient-focused, knowledgeable, and kind. When I’m not at the office, I am spending time with my family and pets or enjoying the outdoors.

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