Our Doctors

SETH L. AMADIO, DDS

Undergraduate: Pre-dental, University of Wisconsin-Madison

Doctorate of Dental Surgery: University of Minnesota School of Dentistry, Minneapolis, 2010

Dr. Amadio was recognized for his excellence and academic achievement by the American Academy of Dental Practice Administration. He has a personal mission of helping others which includes organizing local events for Give Kids a Smile which provides free dental care for the underserved children in the area as well as volunteering at the Franciscan Health Center. 

Dr. Amadio provides patients with the highest standard in dental care.  He puts his patients needs first and provides care in a comfortable and relaxed environment.  He encourages open communication and stresses prevention and education as important aspects in providing optimal oral health.

Memberships & Associations

  • Academy of General Dentistry
  • American Dental Association
  • Minnesota Dental Association
  • Northeast District Dental Society
  • Great Lakes Study Club
  • Spear Study Club

Dr. Amadio likes to go hiking, camping, skiing, play golf and hockey along with wood working, and gardening.  He enjoys spending time with his dog Lexi.

Ross A. Anderson, DDS

Undergraduate: Bachelor of Arts, Gustavus Adolphus College-St. Peter, MN 2001

Doctorate of Dental Surgery: University of Minnesota School of Dentistry, Minneapolis, 2010

Dr. Anderson grew up in Eau Claire, WI and later went on to receive his Bachelor of Arts in 2001 from Gustavus Adolphus College in St. Peter, MN.  With a career in dentistry always in mind, he spent a number of years working as a wild land firefighter.  This work reinforced his interest in working with his hands, but lacked the kind of personal interaction he wanted in a long term career.  In 2006 he enrolled at the University of MN and earned his Doctorate of Dental Surgery from the U of M School of Dentistry in 2010.  While in dental school, he volunteered weekly at the Union Gospel Mission free dental clinic and helped coordinate Give Kids a Smile activities on campus.  After graduation he completed a General Practice Residency and a Fellowship in TMJ/Orofacial Pain at Hennepin County Medical Center (HCMC) in Minneapolis.  Dr. Anderson enjoys the challenges and variety of work that dentistry offers, and greatly values building relationships with his patients. 

Memberships & Associations

  • American Dental Association
  • Minnesota Dental Association
  • Northeast District Dental Society
  • Great Lakes Study Club
  • Spear Study Club

Dr. Anderson and his family had always hoped to move back to Duluth, as his wife Carin grew up here, and they are thrilled to be closer to all of northern Minnesota’s great adventures.  In their spare time they enjoy biking, hiking, skiing, reading, throwing rocks in Lake Superior with their two sons, and traveling.

Dr. Anderson is dedicated to open communication with his patients, a caring environment, and excellence in his work.  We are pleased to welcome him to Lake Superior Dental Associates Duluth and Two Harbors!


     

Halstead_04_smallDr. Nathan Halstead, DDS, MS

Undergraduate St. Olaf College, Northfield, MN

Doctorate of Dental Surgery: University of Minnesota School of Dentistry, Minneapolis

Dr. Nathan Halstead has been creating beautiful smiles since 2001.  Dr. Nathan’s interest in helping people live healthier, more confident lives led him to pursue a career in orthodontics.  Prior to becoming an Orthodontist, he attended St. Olaf College where he received his Bachelor of Arts Degree.  He received his Doctorate of Dental Surgery Degree with highest honors from the University of Minnesota, completing both a Master’s Degree and a Post-Graduate Residency in Orthodontics and Dentofacial Orthopedics.

Dr. Nathan stays active in the orthodontic and dental community as a member of the American Association of Orthodontists, American Dental Association, Minnesota Dental Association, and the Northeast Dental Society. 

Memberships & Associations

  • American Association of Orthodontics
  • American Dental Association
  • Minnesota Dental Association
  • Northeast District Dental Society

When he is not creating beautiful smiles, Dr. Nathan enjoys spending time with his, Corrina, and their two children, Emma and Hans.  They enjoy soccer and basketball games, skiing and spending time with family and friends. 

       
       

Melanie S. Meier, DDS

Undergraduate: University of Minnesota – Duluth

Doctorate of Dental Surgery: University of Minnesota School of Dentistry, Minneapolis, 1995 

Additional dentistry education, L.D. Pankey Institute

Dr. Meier immediately put her formal training to use by starting her practice with Lake Superior Dental Associates Duluth and Two Harbors in 1995. She is actively involved in dental organizations and study clubs to keep current with the changes in dentistry.

Memberships & Associations

  • Duluth Rotary Club #25
  • Supervising dentist for the Lake Superior College Dental Hygiene Program
  • Great Lakes Study Club
  • Seattle Study Club

Dr. Meier loves her time spent at her Moose Lake cabin in the summer and fall.  She has a passion for gardening and likes to participate in the annual local 4H fair submitting her vegetables or flowers and receiving numerous ribbons and awards. Her other favorite pastimes include long walks, fishing, boating, swimming and valued time with family and friends.


 

 

   

 Polzin_Jeff_high res_smallJeffrey A. Polzin, DMD

Undergraduate: St. John’s University, Collegeville, MN 2004              

Pre-Dental, College of Saint Scholastica, Duluth, MN

Doctorate of Medical Dentistry: Arizona School of Dentistry and Oral Health, Mesa, AZ 2014

Dr. Polzin was born and raised in Duluth, MN and graduated from St. John’s University in Collegeville, MN where he received a Bachelor of Arts degree in Spanish. ¡Se habla español!  After working for an internet retail company in Minneapolis, he realized he had other career aspirations.  He followed the excellent examples set forth by family members in the oral health care profession and pursued a career in dentistry.

Throughout his dental school career he was involved in dentistry in the community.  He provided  oral health care and education for underserved populations throughout the Phoenix area with organizations like ACTS Ministry Outreach, the Special Olympics, Give Kids a Smile, and others.  Dr. Polzin also holds a Certificate in Public Health with a Dental Emphasis from ASDOH.  During his fourth year in dental school Dr. Polzin had the opportunity to treat patients at the Lake Superior Community Health Center, the White Bird Clinic in Oregon, El Centro Community Health Center in New Mexico, and the Alaska Native Medical Center and South Central Foundation in Alaska. Dr. Polzin has also participated in dental service trips to the Arctic Circle and Honduras.

Memberships, Associations & Awards

  • American Dental Association
  • Academy of General Dentistry

Outside the office, no matter the weather or season, Dr. Polzin can be found out pedaling his bike, skiing, exploring the great north-woods, fishing, hunting, or taking photographs. He lives in Duluth with his wife, Kristina, whom he considers his inspiration.

Dr. Polzin is dedicated to the education, prevention, and treatment of oral health and illness in all populations. He is trained to treat the whole person – in mind, body, and spirit, and it is important to him to grow with his patients through kindness and selflessness.


Scott A. Polzin, DDS

Undergraduate: Minnesota State University – Mankato

Doctorate of Dental Surgery: University of Minnesota School of Dentistry, Minneapolis, 1980

Dr. Polzin soon purchased a dental office in Duluth and worked as a solo practitioner until 1985, when he joined Lake Superior Dental Associates Duluth and Two Harbors.

Memberships, Associations & Awards

  • Academy of General Dentistry
  • American Dental Association
  • Minnesota Dental Association
  • Northeast District Dental Society
  • Seattle Study Club
  • Great Lakes Study Club
  • Additional restorative dentistry skills education, L.D. Pankey Institute

Dr. Polzin enjoys dentistry because of the people he sees and gets to know over the years, as well as the opportunities to continuously learn new things. His interest in dentistry began in his father’s dental laboratory, while he worked during high school. Since he has always enjoyed learning new things, working with his hands and helping others, dentistry was a perfect professional fit.

Dr. Polzin and his wife, Julie, have lived in Duluth since 1980 and thoroughly enjoy the area. They have two adult sons, Jeff and Matt. His favorite activities involve anything outdoors–particularly fishing, camping, hunting, skiing and biking. Jeff and his wife, Kristina, live in the Phoenix Arizona area where he attends the Arizona School of Dental and Oral Health and Kistina provides accupunture therapy in Scottsdale.  Matt lives in Southeast Alaska as a Heli-ski guide and construction worker.


       

 ROBERT G. RYAN, DDS

Undergraduate: Pre-dental, St. John’s University, Minnesota

Doctorate of Dental Surgery: University of Minnesota School of Dentistry, Minneapolis, 1969

General Practice Internship, U.S. Public Health Service, 1969 – 1970

Dr. Ryan established his dental practice in Duluth in 1970. He is actively involved in dental organizations and study clubs to keep current with the changes in dentistry.

Memberships & Associations

  • Academy of General Dentistry, President, 1986-1987 Fellowship (FAGD) through continuing education hours
  • American Dental Association
  • Minnesota Dental Association
  • Northeast District Dental Society
  • Duluth Dental Forum
  • American College of Dentists

Dr. Ryan and his wife, Maureen, are lifelong residents of Duluth. They have three grown, married children–Colleen, Patrick and Bridgit, as well as five granddaughters Molly,Lily,Lauren,Allie & Stella, and two grandsons Landon& Gavin. Dr. Ryan’s interests include his membership at Northland Country Club, serving as past president and golfing as much as possible. He also enjoys time with his wife and friends at their Florida vacation residence and other travels.