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Meet the Doctors

Drs. Leaman, Muggli, and De Leon are pleased to be able to offer beautiful smiles to their neighbors in Oconomowoc and the surrounding communities. Our doctors are excited to meet you and discuss your dental needs. Call our office today at 262-567-4466 to schedule the first step toward your healthiest smile.

James Leaman, D.D.S

James Leaman, D.D.S

Dr. Leaman attended the University of Wisconsin for his undergraduate education and graduated cum laude from the Marquette School of Dentistry for his dental degree. He was the recipient of the Lloyd Piling award, earning it for Excellence in Crown and Bridge. Dr. Leaman also got selected for the Omicron Kappa Upsilon Honorary Dental Fraternity. He taught at Marquette’s dental school in the Crown and Bridge Department for several years as an associate professor. Dr. Leaman stays active with ongoing continuing education, as he has throughout his career, and this ensures his patients receive the most up-to-date treatments and techniques. His professional memberships include the Waukesha County Dental Association, Wisconsin Dental Association, and American Dental Association. In his free time, Dr. Leaman spends time with his family and participates in music and sports. He’s also been the coordinator for an annual music festival for several years that raises funds for muscular dystrophy.

Dr. Richard Muggli D.D.S.

Dr. Richard Muggli D.D.S.

Dr. Richard Muggli D.D.S.

Mission Statement: Dr. Muggli believes in creating a comfortable environment for his patients based on honesty, and quality care that leaves his patients feeling valued and listened to.

Educational Detail:
• University of Wisconsin-Madison, Bachelors of Science
• Touro College of Dental Medicine at New York Medical College, Doctor of Dental Surgery

Lifestyle and Hobbies: Dr. Muggli spends time with his dog Bear, family and friends. He attended University School of Milwaukee nearby, and was born in raised locally other than when pursuing his education for his passion in dentistry. As an avid runner Dr. Muggli tries to take advantage of the beautiful scenery that Wisconsin has to offer.

Dr. Morris De Leon

Dr. Morris De Leon D.D.S

Coming Soon!

Dr. Lato Nguyen

Dr. Lato Nguyen was born in Vietnam & moved to the U.S with his family at the age of 14. He went to Greenfield High School and earned his Biochemistry Degree at the University of Wisconsin-Milwaukee. With a great passion for Dentistry, he continued his education and graduated from Marquette University School of Dentistry.

As a caring dental professional, Dr. Lato loves seeing his patients & helping them achieve & preserve their best smiles. To accomplish this, he values comprehensive patient-focused care which caters to individual needs. Dr. Lato is always interested in the latest techniques & technologies to make modern dentistry a more comfortable experience. He enjoys practicing all aspects of general dentistry, whether it be to improve aesthetics, to reclaim function or to provide relief of pain for patients of all ages.

He is committed to continuing education, especially in his area of interest such as cosmetic dentistry, oral surgery & implants. He is an active member of American Dental Association, Wisconsin Dental Association, Greater Milwaukee Dental Association & Spear Study Club.

Outside of dentistry, Dr. Lato is a huge foodie & enjoys dancing & traveling with his beautiful wife-Nalee. They also have a lovely small Poodle-Kash.