Emily Lund, CMF, President

In 2018, Emily became the Owner/President of San Francisco Prosthetic Orthotic Service.  After 9 years of managing the practice, it was a smooth transition.  Her goals are to create an awesome workplace and clinic for both employees and patients alike. Certified Mastectomy Fitter. Emily grew up in the O & P industry learning the administrative/billing side of the business while working for her father’s O & P company. While obtaining her bachelor’s degrees in Business Administration and Economics she was introduced to Mastectomy Fitting and given the opportunity to meet with and fit clients. Emily has now been fitting women with mastectomy products for over 17 years. Her goal as a mastectomy fitter is to make sure clients leave our office feeling happy and confident about themselves and the products they have chosen.


Michael Plafker, CPO

Michael has been treating amputees and those in need of orthopedic bracing for over 20 years.  After a brief stint as an industrial engineer, Michael initially worked as an orthotic and prosthetic technician for several years before earning his graduate certification in Orthotics and Prosthetics from Northwestern University.  With extensive fabrication knowledge and the ability to think outside the box, Michael works collaboratively with his patients to create a solution to their orthopedic problems.  Certified in C-leg,  Rheo, Plie’ knees as well as Walk-aide, stance control orthoses and others, Michael keeps current on the latest technologies to provide these to his patients when appropriate, and an advocate for them to third party payers.


Daniel Ballarin, CPO

Daniel Ballarin is a Certified Prosthetist Orthotist who works with San Francisco Prosthetic Orthotic, Inc.  Daniel is originally from Omaha, Nebraska. He received his bachelors in biology from the University of Nebraska and went on to study Prosthetics and Orthotics at Northwestern.  Daniel was introduced to the field when he met his wife’s family, who’s brother is an amputee and mother is a brace wearer.  It was perfect for learning about the daily struggles that our patients go through.  He is really active and loves rock climbing.


R. Joseph Muller, CPO

Joe Muller is a Certified Prosthetist Orthotist who works with San Francisco Prosthetic Orthotic Service, Inc.


Carolyn Tsai, CFm

Carolyn is a Certified Fitter – Mastectomy who works with San Francisco Prosthetic Orthotic Service, Inc.


Emma Cheung, On Lok Lifeways, SF. · May 4, 2012 at 4:51 pm

I just wanted to thank Thomas in advance for his willingness to meet with our physical therapists and provide us with an in-service on the latest development in the field of orthotics and prosthetics to benefit our seniors. We look forward to meeting you on Monday, May 14th, at 3:30pm. Our meeting place is on 1333 Bush Street, SF. Please email me if there is anything (e.g. A/V set up ) I can prepare beforehand for the in-service. Thank you again for your support of our staff education. Emma Cheung, PT

James McCormick · September 20, 2014 at 7:19 pm


Two questions. I was given orthotics from you about a year or two ago and I need to replace them. What would the process be?

When I was treated by you you gave me a very useful handout about alternating ice/heat treatment for injuries. I would love to get another copy of that. Can you help?


Jim McCormick

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