Dr. Marni Hansill, DMD

Gentle, Honest, and Here for Your Smile

A Florida native, Dr. Marni Hansill brings compassion, integrity, and a gentle touch to every patient she sees. She earned her Bachelor’s degree in Biology from Oberlin College in Ohio before graduating from Nova Southeastern University College of Dental Medicine in 2005.

Dr. Hansill spent her first decade practicing dentistry in rural Oregon and Idaho, caring for underserved communities as part of the National Health Service Corps. She returned home to Florida in 2015 and has been serving the Bradenton and Oneco communities ever since.

Patients often remark on Dr. Hansill’s painless injections and her ability to put people at ease. She’s committed to honest, pressure-free care and welcomes second opinions to help you feel fully confident in your dental decisions.

Outside the office, Dr. Hansill loves spending time with her family, traveling, staying active, and practicing her French and Spanish with patients whenever she can.

I love seeing my patients smile!

Nikki

Office Manager

Oneco Smiles General and Cosmetic Dentistry

With over 25 years of experience in the dental field, Nikki brings a wealth of knowledge and compassion to her role as Office Manager at Oneco Smiles General and Cosmetic Dentistry. She began her career as a Dental Assistant, where she spent the majority of her time hands-on with her patients, building a strong foundation in patient care. For the past several years, she has transitioned into management, where her passion lies in ensuring each patient receives honest, high-quality care in a welcoming environment.

Outside of the office, Nikki enjoys expressing her creativity through jewelry making and DIY projects. She’s also a big fan of live music and seizes any opportunity to attend concerts. But her favorite moments are spent at home with her partner Rick, their two young children, Hayden and Quinn, and their beloved yellow Lab, Milo. Whether at work or home, Nikki is all about connection, care, and creating positive experiences for those around her.

Oneco Smiles General and Cosmetic Dentistry

Kara

Registered Dental Hygienist

Oneco Smiles General and Cosmetic Dentistry

Kara has been in Dentistry for 8 years. She graduated from Ohio State University in 2017. Her passion lies in her ability to educate patients on their overall gum health, as well in helping her patients foster good oral hygiene practices. Kara and her boyfriend, Collin, moved from Ohio, to the St Petersburg/Clearwater area, last year. She enjoys exploring new beaches and all of the nature that Florida has to offer.

Kacey

Dental Receptionist

Oneco Smiles General and Cosmetic Dentistry

Kacey started her career in dentistry 2 years ago. She is originally from Pennsylvania and moved to Florida late 2024. Kacey enjoys bringing a mix of organization, patience, and people skills to the front desk. Whether she is managing the schedule or greeting patients, her goal is to make every visit stress free. Kacey loves exploring new places, being inspired by local art, and sketching. She believes that kindness and creativity make all the difference in dentistry.