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Our Team

Meet the i-Orthodontics team! We are here to help.

Dr. Desiree Hsiou - Associate Doctor

Dr. Desiree Hsiou is a Board-certified Diplomate of the American Board of Orthodontics and specializes in braces and clear aligner treatment for adults and adolescents.

Dr. Desiree received her Doctor of Pharmacy degree at the University of the Pacific, Thomas J. Long School of Pharmacy and Health Sciences.

Following her father’s footsteps, she went to complete her Doctor of Dental Surgery Degree at the University of California, Los Angeles where she was awarded the prestigious Dr. William S. Kramer Award of Excellence and was accepted into the Omicron Kappa Upsilon Dental Society. Dr. Desiree graduated Cum Laude and was awarded the UCLA School of Dentistry Section of Orthodontics Award upon graduation.  Dr. Desiree loved improving her patients’ smiles and confidence so she decided to pursue a career in orthodontics.

At the Harvard School of Dental Medicine, Dr. Desiree completed her orthodontic training and her Masters degree in Oral Biology. Dr. Desiree served as chief resident in her last year of residency, and her research on a tele-orthodontic remote monitoring program was given the Northeastern Society of Orthodontists Resident Research Award.

After spending three years in Boston, Dr. Desiree decided to move back home to serve the community in San Diego. Dr. Desiree enjoys traveling, yoga, golf, and cooking and usually spends her weekends with her poodle, Daisy.

Mickie - Clinical & Administrative Team Member

I have been in the orthodontic field for about 40 years and have been a part of the Team since Moser Orthodontics first opened. I enjoy working for Dr. Pfeffer and helping the practice grow. She’s an awesome orthodontist, very knowledgeable in her field and a very caring person. I am very fortunate to be on the I-Ortho team. I have 2 daughters; a dog, Bubba; and a cat, Butch. My youngest daughter is in the US Navy and getting married in the Fall. My oldest lives in Germany where her husband is stationed in the Air Force and had their first child (my first grandchild) in December 2018. I enjoy walking my dog, gardening, decorating, arts and crafts, reading and traveling.

Debbie - Clinical Specialist/Assistant

I have been a Dental Assistant for 8 years following my career as a Dentist in El Salvador. I am thrilled to be working with the team at iOrtho! Dr Pfeffer’s knowledge, standards and caring for her patients are remarkable; I’m proud of working with her and to be a part of the iOrtho family! I moved to San Diego a year ago from Ventura County.

I have been married for 10 years and we have 2 amazing boys together, 7 and 6 years old! We love exploring San Diego, venturing on hikes, finding new places to eat, relaxing at the beach and traveling.

Shelby - Administrative Team Member

I am new to San Diego, I moved here from Washington State about a year ago. I am new to the orthodontic field as well but have been enjoying all that I have been learning. Working with children brings me joy as I was a preschool teacher for many years. The transition into the front office position felt natural, smooth, and easy. It’s so fun to see the smiles that are transformed here at i-Ortho. I feel so lucky to be able to work with such amazing women and admire all of their kind, warm hearts.

In my free time, I enjoy spending time with my friends, hanging out at the beach, and playing with my pets, Nala and Kitty. Often, I find myself enjoying motorcycle/car rides with no real destination and just soaking in the beauty of southern California!

Fritzie - Clinical Specialist/Assistant

I’ve worked in general practice for a while until one day I decided to step out of my comfort zone. The day that I found i-Ortho and met Dr. Pfeffer, I immediately knew that this is where I wanted to be! I am so happy and proud to be a member of the i-Ortho family. I am originally a Dentist from the Philippines and decided to move to sunny San Diego where I am happily married! I usually spend my free time gardening and playing with my shih tzu Juancho. I also practice pilates and love traveling.

Abby - Administrative Team Member

I just moved to San Diego from Wisconsin in March 2020. I am loving the sunshine and being so close to the ocean! While I’m brand new to the ortho field, I am so happy to be working here at I-Ortho! I couldn’t imagine a better work family! All of the girls are wonderful and Dr. Pfeffer is amazing. You won’t find a friendlier team! Outside of work, I find myself spending quality time with friends, playing with my 3 year old cat, Lenny or 1 year old dog, Piglet.