Our personal experience underscores every relationship we build with a patient. We understand the mental and physical hurdles in an amputee’s journey to their new life with their new prosthesis. From pre-op to complete fit, Shamrock Prosthetics builds a relationship based on trust, compassion, belief and encouragement with each patient on their unique path to recovery. We provide innovative technological solutions for the customer in this antiquated industry and underscore our relationship with the highest caliber of customer.


We are changing the standard in patient care, clinician relations and custom prosthetics for amputees.

Traditionally, the prosthetics industry is reactive industry where a patient starts the prosthetic conversation post surgery.

Shamrock Prosthetics does it differently: we establish a relationship pre-surgical with the patient and the surgeon to maximize the possibility of long-term functionality. Our custom fabricated prosthetics takes into consideration each patient’s limb size, shape and structure as part of our pre-op phase.

Following surgery, we remain at a patient’s side every step of the way throughout the healing process and fitting phase to restore or increase pre-injury functionality. Likewise, if a patient is not able to travel to our office, our clinical manager will travel to the patient’s home or rehabilitation facility to accurately fit for a custom prosthetic.

Just as important, because we have personal amputee experience, we understand the frustration and other mental challenges associated with recovery and work closely with each patient to restore and encourage a positive attitude throughout.


Steve Ehretsman

Founder & CEO

Originally from Cleveland, Ohio, Steve has made his home in Atlanta, Georgia for the last 20 years. As Founder & CEO of Shamrock Prosthetics, Steve plays the vital role of strategically directing the leadership of the team. Unlike many other founders and CEOs, Steve’s daily activities consist of being on the road for face-to-face patient onboarding, patient referral management, and results-based marketing strategies. His successful marketing expertise landed him major positions with some of the most prestigious consumer brands including Gatorade, The Coca-Cola Company and Budweiser, among others. Throughout his life, Steve was quite the athlete. He was a Division 1 student athlete and captain of the Boston University Basketball Team. In 2001, Steve was involved in an on-the-job accident resulting in thirteen unsuccessful limb salvage surgeries which led to a below knee amputation. His personal experience with navigating the surgical and prosthetic fitting process left him feeling neglected and defeated. This frustration became his motivation and drive to not only change but improve the prosthetic industry’s standard of patient care. In 2011, Ehretsman was named to Atlanta Business Chronicle’s 40 under 40 list of Rising Business Leaders. In 2015, he opened the doors to Shamrock Prosthetics, and in 2017, he received the Georgia State Board of Workers Compensation Annual Spirit Award. Steve remains a member of the Georgia State Board of Workers Compensation Annual Conference Medical Advisory Committee. He has been featured in many prominent news publications and continues to be a speaker at conferences across the country.

Becky Bowen

Operations Director

Becky brings over 30 years of experience in business operations, focusing on financial and cash flow management, as well as designing and analyzing systems for inventory and human resources. A North Dakota native, Becky earned a BA in Information Management from the University of North Dakota. She spent 28 years at an injection molding manufacturing company, managing projects in the medical, durable medical products, hospital food service, and electronics industries. She was a polymer expert and helped develop products that went on the space shuttle for research. While working in the plastics industry, she also owned and operated several Anytime Fitness franchises. Becky has lived in Winder, GA for the past 25+ years. She has two children that keep her busy and help her develop her 32-acre farm where she raises miniature and standard Australian Shepherds. Fun fact about Becky: her daughter’s picture is on a banner hanging in the Colorado Springs Olympic Shooting Range, as a winner of three National Championships.

Mark Kirchner, CPO

Chief Clinical Officer - Consultant

Mark is an ABC Certified Prosthetist Orthotist with over 30 years of experience in the prosthetics field. He has specialized in prosthetic socket technology, scoliosis and pediatric prosthetic and orthotic care and is actively involved with legislative initiatives for the prosthetic and orthotic profession. Mark was introduced to Shamrock in 2015, while working as a socket technology specialist with Ottobock. He visits Shamrock monthly to teach and provide the clinical team with the most up-to-date socket technology training. Mark lives in San Antonio, Texas with his wife and two dogs.


Katy Giesken, MSPO, CPO, LPO

Prosthetist & Team Leader - Clinical Administrative

Katy is an ABC Certified and Georgia Licensed Prosthetist Orthotist. Originally from Connecticut, she earned her Bachelor of Science in Therapeutic Recreation from Clemson University. Her interest in prosthetics and orthotics was sparked while assisting with adaptive sports clinics as a part of her undergraduate degree. She then earned her Master of Science in Prosthetics and Orthotics at the Georgia Institute of Technology. Katy enjoys working with patients to help improve their mobility and quality of life. Outside of work, she spends her time playing sports, cooking, and working out.

Scott Hoskins, MSPO, CP, LP

Prosthetist & Team Leader - Clinical Technical

Scott is an ABC Certified and Georgia Licensed Prosthetist. Originally from Charlotte, North Carolina, he earned his undergraduate degree in Exercise Science with a psychology minor at Appalachian State University. He then earned his Master of Science in Prosthetics and Orthotics at the University of Pittsburgh. Scott has always had an interest in the medical field and found prosthetics was able to best combine his passion for science, creativity, and direct patient care. Scott enjoys staying active and likes to spend his free time outdoors with his dog, Copper.

Blake Steczkowski, MSPO, CP, LP


Blake is an ABC Certified and Georgia Licensed Prosthetist. Originally from Austin, Texas, Blake earned his bachelor’s degree in Kinesiology at Texas A&M University. During an internship in Haiti, he worked in a prosthetics clinic where was able to fabricate prosthetic devices for those that needed it. This rewarding opportunity led Blake to earn a Master of Science in Prosthetics and Orthotics at Alabama State University. He is driven by working with patients and designing a device that will achieve the best outcome for their specific needs. Outside of work, Blake enjoys spending his time outdoors and watching any and all sporting events, especially Texas A&M Football.


Erik Pimentel

Territory Manager/Patient Advocate

Originally from Brooklyn, New York, Erik is a graduate of St. John’s University. He moved to Georgia in 2013, and two years later was involved in a work-related accident. Erik underwent several limb salvage surgeries before having his below the knee amputation. For the next 4 years, he was only able to wear his prosthesis for up to 4 hours a day while being treated by another prosthetic provider. Erik received a second opinion at Shamrock and experienced a completely different level of patient care, prosthetic education, and technology. He now wears an advanced technology prosthesis, enabling him to wear his new device for up to 16-17 hours a day. Erik’s totally new perspective on life inspired him to seek employment at Shamrock, hoping to help other amputees avoid the pitfalls he previously faced. He went on to lose 120 pounds and became a Weight Watchers Connect Ambassador. Erik exhibits a “no excuses” attitude and has his own unique way of coaching and relating to patients.

Thomas Halstion

Territory Representative/Patient Advocate

Thomas is originally from Orange County, California, but moved with his family to Georgia, where he began a career at Apple. An avid motorcycle rider, Thomas was in an unfortunate bike accident in 2020, in which he lost his right leg below the knee. He remembers waking up to our patient advocate, Erik, telling him that he would be there for him, beginning to end. After healing and learning to walk again on his new leg, Thomas sought out employment at Shamrock to become a patient advocate himself. He says that he is most looking forward to relating to patients on a personal level and telling them that their story isn’t over. “Every day you are writing a new chapter in your life.” Thomas has not let his limb loss hold him back, as he continues to ride a motorcycle, do automotive work on the side, and go skydiving every year for his birthday!

Sydney Field

Marketing Coordinator

Sydney is an Athens local and currently earning her bachelor’s in Business Administration in Marketing with a Personal and Organizational Leadership Certificate. Sydney has lots of marketing experience from internships completed in high school, managing her sorority’s social media, and her Terry College of Business courses. Her heart for prosthetics began when a close friend was in an accident that resulted in an above-the-knee amputation. She is excited to learn more about the industry and highlight the Shamrock culture and accomplishments across social media platforms. Outside of Shamrock, Sydney has her own small photography business and enjoys traveling as much as possible.


Jake Strine

Prosthetic Technician

Jake is currently earning his bachelor’s degree in Exercise and Sports Science at the University of Georgia. After undergraduate school, he plans to pursue his doctorate in Physical Therapy and begin his career working with amputees. Jake is currently fulfilling his internship at Shamrock Prosthetics by shadowing the clinical team and working in the lab. His attention to detail and problem-solving abilities are apparent in his prosthetic fabrication work. Jake also enjoys going to UGA football games, fishing, and working out.

Romeo Andujar

Prosthetic Technician

Romeo is originally from Bridgeport, Connecticut. He graduated from a multi-magnet STEM high school with 3 divisions of biotechnological and zoological research, where he focused on the study of the human body and artificial limbs. Following high school, Romeo held customer-facing positions where he developed a professional and disciplined work ethic and achieved quality results. Romeo is a “natural” working with his hands and has a passion for helping others. He sees his opportunity at Shamrock to expand his skills in the technology of bionics. Romeo enjoys building things, fixing cars, drawing, and cooking.

Jamie Strickland

Lab Manager


Jennifer McCannon

Office Administrator

In 2018, Jennifer was involved in a car accident resulting in a below the knee amputation of her right leg, which led her to Shamrock Prosthetics. The compassion and genuine care she received at Shamrock made her want to be a part of giving others that same patient experience. She now has over seven years of customer service experience and is currently pursuing a bachelor’s degree in business. Jennifer enjoys spending her free time at the lake with her family and friends.

Jessica Woodall

Insurance Advocate & Office Administrator

Originally from Augusta, Georgia, Jessica earned a diploma at Augusta Tech and is currently studying business management through the University of South Carolina. Jessica has worked in the medical field for 12 years and has extensive experience in trauma medicine, emergency medicine, scheduling and pre-authorizations. She always brings excitement to the office and works collaboratively with her colleagues. Jessica has three kids and loves to read in her free time.


Christian Zahm

Operations Coordinator

Chrisitian, originally from Bethlehem, Georgia, is currently pursuing his bachelor’s in Business Administration at the University of Georgia as a finance and financial planning double-major. He is excited to learn the ins-and-outs of the prosthetics industry and help the Shamrock team, including his sister, grow and achieve their goals. Chrisitan’s friend with a shoulder disarticulation has inspired him to continue instilling hope in the hearts of other amputees. He also enjoys photography and taking pictures outdoors whenever he gets the chance.

Felita Harper

Billing & Collections Specialist

Felita grew up in Hartwell, Georgia, and has over 25 years of experience in the medical field. With a desire to learn and contribute to this industry, she earned her CNA degree from Athens Technical College and then earned her Associate degree in Medical Billing and Coding from Ultimate Medical Academy. Felita is currently enrolled at Colorado Technical University, pursuing her bachelor’s degree in Healthcare Management with Informatics. She enjoys spending time with family, friends, and cheering for the University of Georgia. Go Dawgs!


A 2001 accident and 13 surgeries left Steve Ehretsman, a Division 1 athlete and founder of Shamrock Prosthetics, with a below-knee amputation. His experience with the pre- and post-op patient care, prosthetic options available and general mental wellness challenges associated with recovering from the accident ultimately drove his decision to approach prosthetic management differently.

On May 8th 2015, Ehretsman launched Shamrock with the guiding conviction to approach an amputee and surgeon relationship differently than he experienced and to develop technology-advanced prosthetics that offered patients full functionality.

Today Ehretsman and his team meet with patients prior to surgery and weekly throughout the recovery process. Likewise, Shamrock fabricates all of its custom prosthetics on site in its 3,400 facility in Athens, Georgia.


We continue to grow and build our family of Shamrock Prosthetics patients and referral sources. In 2019, we will be renovating our Athens office to add another 2,000 square feet.  This will bring the total of 5,500 square feet.  The growing demand for Shamrock Prosthetics unique patient care will have us launching offices around the State of Georgia in the near future.