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The Dental Success Institute, founded by Dr. Mark Costes, is a multi-faceted dental education coaching business designed to inspire, connect and educate the world's top dental professionals.

The Founder

Dr. Mark Costes is far from a typical dentist and dental coach. During his career, he has been able to start or acquire sixteen successful dental practices during some of the profession’s most challenging times. But Dr. Costes’s journey was not without its setbacks. In fact, he credits much of his success to the fact that he made more mistakes in his first year of private practice ownership than most dentists make in an entire career. What separated him from the masses, however, was the fact that he viewed each failure and roadblock as a learning experience and an opportunity to improve his business and life. This philosophy, as well as his decision to model the world’s most successful marketers and dentists, has led him to where he is today.

Dr. Costes is founder of the Dental Success Institute, a company committed to helping dentists to achieve their full potential, while recapturing their passion for dentistry. He is also the Co-founder and CEO of Dental Success Network, a positive and collaborative group of nearly 1,000 dentists that is focused on providing its members with all of the tools and resources necessary to excel within the profession of dentistry. Dr. Costes is the International and #1 Amazon Best Selling Author of the book Pillars of Dental Success. His internet radio show, The Dentalpreneur Podcast now has listenership from over 150 countries worldwide. Mark and his wife Leslie have three sons; Bryce, Brendan, Brady and their dogs, Bear and Haze. They live in Prescott, AZ.

The Mission

The Mission of the Dental Success Institute is to help dentists to achieve their full potential in business and in life.

Once a dental practice is transformed from a staff-dependent to a systems-dependent business, the owner can achieve improved work/life balance, decreased career related stress, and increased profitability and personal income.

The Vision

The vision aligns deeply with the DSI mission in that we practice what we preach. Systems continue to evolve over time, but nothing stays the same for long. While dental technology, dental marketing and the cost of doing business continue to evolve, so does DSI’s commitment to aligning with the best and brightest. DSI delivers up-to-date practice management techniques alongside “family-like” accountability through coaches and community.

The Return on Investment

The true measure of dental practice success is in the numbers. The true measure of personal success is in the relationships you foster. Whether you are a listener of The Dentalpreneuer Podcast or a member of the Dental Success Network, or a DSI Mastermind, this community offers the resources to ensure growth no matter what stage of life/dentistry you are in.

The Members

Becoming a DSI Member is an investment with high return. Membership benefits include one-on-one coaching, group accountability, exclusive CE events, access to a network of successful dental professionals, a preferred vendor network with significant cost savings on products and services and so much more.

The Team

Rima Urban

COO of Horizon Dental

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Coaching Strengths: Culture, KPIi Analysis, Problem Solving, Ortho Implementation, Medical Billing Opportunities, Multiple Practice Ownership

Rima Urban is the COO of Horizon Dental Group. Rima has been in the dental industry for over 30 years. She is a native of Arizona and prior to joining DSI she was the Vice President of Southwest Dental Group. She runs operations for the Horizon Dental Group practices and supports DSI as a member of faculty.

Kay Lange

Executive Director at DSI

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Kay Lange is the Executive Director at the Dental Success Institute where she helps our members navigate the private coaching program.

Brandon Woltermann

Member Relations Manager at DSI

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Brandon Woltermann is the Member Relations Manager at DSI. He is a native Arizonan. His responsibilities are to foster a positive relationship between DSI and its members, assist members throughout their journey with DSI, and contribute to the facilitation of events and services.

Paul Morquecho

Media Administrator at DSI

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Paul Morquecho is the Media Administrator at DSI. He is a native Tennessean. His responsibilities are to coordinate all media components at DSI, schedule podcasts and administer social media assets. Paul is also very passionate about art and design.

Dalton McCabe

Administrative Assistant

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Dalton McCabe is the Administrative Assistant at DSI. Dalton is a Veteran from Northern Arizona. He is responsible for managing supply inventories, ordering, filing systems, postage tracking, and all around go-getter for the office.

jake conway

Jake Conway

Owner/Founder of Custom Practice Analytics

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Coaching Strengths: Custom Practice Analytics

Jake has a background in financial analytics in the Hospitality Industry and has applied this knowledge and experience to the Dental field since 2012. As the Business Analyst for DSI, Jake really loves connecting with our clients and providing the most value he can in utilizing insights from analytics he provides to Dentists and their teams. Jake likes to play golf, play/listen to music, learn about people and businesses, sports and entertaining/cooking.

Alexandra Schaeffer

Data Analyst Custom Practice Analytics

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Alexandra Schaeffer is a data analyst for Omni-Tech Business Solutions & Custom Practice Analytics. Creates monthly reports for dental practices. Background of bookkeeping for work and school and loves to work with numbers.

Lila Young


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Lila Young is the CFO at DSI. She is a native Arizonan. Her responsibilities are planning, implementation and managing all finance activities. Loves to volunteer in her offtime with animals.

Tracey Moeller

Accounting Assistant at DSI

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Tracey is the Accounting Assistant at DSI. She is originally from California and has lived in the midwest for sometime. Her responsibilities to assist in the data entry, record keeping and supporting the finance department. Tracey loves staying active and volunteering.