Our Team

About Our Lone Tree Office

Metropolitan Dental Care is located in Lone Tree, CO. Our staff of dental experts includes regular and cosmetic dentists, endodontists, orthodontists, periodontists, and oral surgeons.

Ready to get started with a top rated dental office? Learn more about offers, insurances we accept, or browse our payment options for patients without insurance.

Mission Statement

Our continuous mission is to provide our patients with a comfortable environment to have their oral health diagnosed and discussed comprehensively; allowing for our patients to make informed decisions about their smile. We use modern technology and best practices, so you receive quality care.

Dr. James Fischer – Cosmetic & General Dentist

Dr. James FischerDr. Fischer is a graduate from the University of Nebraska, where he received his Bachelor’s in Biology. He went on to receive his Doctorate from the Creighton School of Dentistry in Omaha and has been practicing dentistry for the past 20 years. He is a member of the Academy of General Dentistry and stays up to date in all phases of dentistry.  Dr. Fischer grew up in the state of Nebraska playing sports through college and is an avid sports fan. In his free time, he enjoys mountain biking, playing golf, and loves spending time with his wife and their two dogs, an Irish Wolfhound and a Komondor.

Dr. Chelsea Twohig – Periodontist

Dr. Chelsea TwohigDr. Twohig was born and raised in small-town Wisconsin. She attended the University of Wisconsin-Madison, graduating with a Bachelor of Science in Biology and Spanish. Rather than immediately entering dental school, Dr. Twohig pursued her passion for Spanish language and culture, spending two years in northern Spain as an English language assistant in high school classrooms. It was during those two years that Dr. Twohig began to play ultimate Frisbee, which has become the pastime that dominates her free time to this day.

Although Dr. Twohig fell in love with Spain, she felt it time to return to the US and begin the next phase of her academic and professional life, and so she enrolled in the University of Iowa College of Dentistry. Prior to her periodontal residency program, in the interest of developing her ability to practice dentistry in Spanish, Dr. Twohig completed a two year advanced education in general dentistry residency at the University of Puerto Rico School of Dental Medicine. She then completed her periodontal residency at Oregon Health and Science University. Dr. Twohig enjoys all aspects of her work, but specifically enjoys forming relationships with her patients and colleagues.

She and her husband, Derek, recently moved to Colorado as Derek accepted a position at the University of Northern Colorado. Together they enjoy traveling, snowboarding, and ultimate Frisbee.

Carolyn – Assistant Office Manager

Carolyn Pieza

Melissa – EDDA

Melissa Mascarenas

Susan Kim – RDH

Susan KimIn 2018, Susan joined our team, and what an amazing addition she has been. She strives to gain her patients trust so that she can provide personalized dental care and help patients feel comfortable. Susan participates in periodontal study clubs to hone her skills and remain current on the latest developments in her field. She enjoys hiking, traveling, and snowboarding, and describes herself as a total foodie.

Lindsey – Hygienist

Lindsey BurkholderWe welcomed Lindsey to our team in 2017. Lindsey loves teaching her patients about proper oral hygiene and maintaining a beautiful smile. When Lindsey isn’t helping her patients, she is often found crocheting or drawing. Aside from working in our office, Lindsey teaches girls softball. She even plays a little softball herself.

Ronnie – EDDA

RonnieRonnie has been in the dental field for over 15 years. In her spare time she makes custom gift baskets for any occasion. She enjoys warm weather and family gatherings. Spending time with her husband and kids warms her heart! She also enjoys reading and writing fictional stories.