Our Staff


At Yim Orthodontics, we recognize that all of our patients are unique and deserve to receive orthodontic care that reflects their individual needs. Dr. Yim and Dr. Nayak, along with their knowledgeable and talented team, are eager and committed to deliver the highest quality orthodontic care. With a highly-skilled staff dedicated to utilizing the newest technology and advances in the field, our practice works to ensure that your orthodontic experience is rewarding and comfortable every time you visit our practice. We look forward to working with you and your ohana soon.

Lani Guillermo, Treatment Coordinator

I was born and raised on the island of Kaua’i and have called O’ahu home for many years. I have an extensive background in securities trading and marketing. I totally love my job! Our team works diligently to provide our patients with the highest quality of orthodontic care. It’s about creating genuine relationships and beautiful smiles that will last a lifetime. My greatest rewards are the hugs I receive from our patients and their families who love the final results. I enjoy spending time with my family and close friends, hula dancing, traveling, shopping and working out.

Sue McLafferty, Financial Coordinator

I joined Yim Orthodontics with a deep background in Medical Management, from orthopedics to plastic and reconstructive surgery. I have enjoyed working here the last few years and am grateful for the opportunity to add orthodontics to my repertoire. I was born and raised on the East Coast, and have lived in New York, Colorado, Maine and California. I moved to HawaiĘ»i in 1998 with my husband and daughter. I most enjoy spending time with my family and pets, growing orchids and watching sports. 

Mercedes Demello, Scheduling Coordinator

I was born on Oahu but grew up on the island of Hawai’i until returning back to Oahu in 2019 with my family. My previous work experience is mainly in sales, so orthodontics is new and exciting to me! Outside of work, I love crafting, spending time at the beach with my family, and doing arts and crafts with my children Taylee Love and Aiden. 

Veronica West, New Patient Coordinator

I joined Yim Orthodontics in 2019 and have loved watching the transformation of our patient’s smiles and confidence throughout their treatment with us. I feel grateful to be a part of the Yim Orthodontics team! Born and raised in Bend, Oregon, I studied at the University of Oregon before moving out to Hawai’i to pursue a Master’s Degree in Teaching and Education. In my free time, I enjoy running, hiking, reading and watching Survivor.

Maribel Bazell, Clinical Assistant

A smile is the prettiest thing a person can have!  Creating beautiful smiles has been my passion for the last 11 years with this practice.  Before moving to Hawaii from Arkansas where I graduated from Eastern College of Health Vocations, I worked in general dentistry for four years.  I enjoy helping our patients achieve their best smiles!

Aileen Silva, Clinical Assistant

I’ve worked in the orthodontic field for more than 20 years, including a period when I served as a Dental Specialist in the U.S. Army.  The best part of my profession is building relationships with patients and supporting them in their orthodontic journey.  Growing up in Louisiana, I’m a huge LSU and New Orleans Saints fan!

Leila Moniz, Clinical Assistant

I was born and raised in Kona, then moved to Oahu with my four-legged fur baby, Tallulah, in 2017.  During the winter season, I enjoy snowboarding with my family.  My training and expertise in oral surgery has helped me transition into orthodontics and create beautiful smiles.  I love working with such an amazing team at Yim Orthodontics.

Kylie Amarino, Clinical Assistant

I always loved going to the dentist and since intermediate school have been interested in teeth.  My training at the Hawaii School of Dental Arts prepared me for working in dentistry, and I am also a pharmacy technician. I love spending time with my family and friends on Hawaii Island, trying new things and going out of my comfort zone.

Tihani Medeiros, Clinical Assistant

I was born and raised here in Hawaii and have been working for Dr. Yim since 2013. I have over seven years of experience working with my orthodontic family! I love spending any free time with my family, especially my three year old daughter, Akira. We love to spend our time together going to the beach, fishing, traveling, hiking, and--my personal favorite--gardening.

Kary Medina, Clinical Assistant

The greatest reward of my job is being a part in creating beautiful smiles. Born and raised in Kailua Kona, I stepped into the dental field in 2009 with a fascination in the industry. Fast forward to present day, I'm driven with the same desire and passion for the trade. My background consists of experience in general dentistry, endodontics, orthodontics, as well as oral and maxillofacial surgery. When I'm not living in scrubs, I practice muscular massage therapy. My days are spent raising my beautiful children, enjoying our island and all its beauty, and growing our love for Hawaiian language and culture.