Meet Our Dentists

Lisa Siddall, DDS

Lisa Siddall, DDSGrowing up, Lisa Siddall originally had her mind set on becoming a family physician. After one of her college classmates encouraged her to look into dentistry, Lisa finally found her true calling. She shadowed several dentists in Martha’s Vineyard and found the combination of science and aesthetic creativity in dentistry to be exactly what she was looking for in a career.


After receiving her undergraduate degree in biology from Colgate University, Dr. Siddall attended dental school at the University of Michigan. In 1993, she graduated with high honors, and was ranked in the top 10% of clinical dental students.

During her first few years of practice, Dr. Siddall worked in a denture care clinic as an associate dentist. She gained extensive experience in denture therapy, partials and dental implant restorations before opening her own private practice in 1998.

Professional Affiliations

Dr. Siddall’s professional affiliations include:

A Focus on Holistic Dental Care

As the mother to a son with autism, Dr. Siddall is extremely knowledgeable on holistic care for patients with special needs. She has done extensive study on toxins in dental materials, as well as research on mercury and fluoride. Her goal as both a mother and an oral health care provider is to provide safe, whole body wellness services to her patients.

A Leelanau County resident since 1990, Dr. Siddall enjoys time outdoors – skiing, sailing, boating, camping, and spending quality time with her 3 children.

Austin J. Dunn, DDS

Dr. Austin J. Dunn, DDS of Lisa Siddall, DDS in Lake Leelanau, MIDr. Dunn and his wife, Julia, moved to Leelanau County in 2021 for the beautiful outdoors and the slower pace of life after having lived in Detroit for the past 4 years. Dr. Dunn grew up outside the Lansing area and graduated from Perry High School in 2012. He then started his undergraduate studies at Olivet College for 2.5 years before transferring to the University of Detroit Mercy on a soccer scholarship, where he received his undergraduate degree in biology. Dr. Dunn then earned his Doctorate degree from the University of Detroit Mercy School of Dentistry. Leading up to graduation, he was 1 of 12 students in his class to be accepted into the Omicron Kappa Upsilon National Dental Honor Society.

Outside The Office

Dr. Dunn enjoys spending time outdoors, taking in all Northern Michigan has to offer. Some of his favorite activities include swimming, golfing, backpacking, hiking, and playing pick-up soccer. He enjoys spending time with his family, friends, and dog, Archie. Dr. Dunn and his wife welcomed their first child (a boy) in April 2022.

A photo of the doctors at Lisa Siddall, DDS dentistry

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    Office Hours

    8:00am - 5:00pm
    8:00am - 5:00pm
    8:00am - 5:00pm
    8:00am - 5:00pm
    8:00am - 5:00pm