With 20+ years of successfully operating dental offices, we decided to introduce an alternative to owner doctors by sharing our passion for delivering the ultimate experience in patient care. The Altdent team is comprised of individuals with diverse backgrounds in management, marketing, dental, finance, entrepreneurship, and the list goes on. 

With over 75 years combined experience, our group of CEO’s, executives, and leaders, is impressive and confident. Yet, it is the humble approach, open-mindedness, and attention to detail that makes us special, and sets Altdent apart from most other Dental Support Organizations.


Our Brands



James Marcellino - Chief Executive Officer

As CEO for Altdent, James applies more than 20 years of successful entrepreneurial experience helping businesses internationally. He possesses all of the superior management skills required in a world-class organizational leader. His ability to assess, deconstruct and then communicate complex business issues gives him a comprehensive management strength that permeates entire organizations. 

In 2014, James helped found an Irvine, California based large group practice and Dental Support Organization (“DSO”), where he built a model for rapid growth, created a unified brand, reimagined the marketing strategy, and via strategic M&A nearly tripled revenues and doubled locations. This was later sold to a large CA based DSO. Prior to that, he served as COO of a financial products marketing start-up, was President & COO of an Internet television company, pioneered a pre-franchise model that was applied to a chain of children’s learning centers, ran a manufacturing and distribution company in the commercial flooring industry, and in his first foray into entrepreneurship, founded a successful chain of Martial Arts Academies.

James graduated with honors from the University of La Verne where he majored in Business Administration with an emphasis in Marketing. He also completed graduate course work in management, finance and business law at Florida International University.

Dr. Mohamad Fielat - President & Founder

As President of Altdent, Dr. Fielat applies more than 25 years of dental management experience serving patients and growing organizations. He is an expert operator whom possesses the key qualities needed to nurture and cultivate people. His genuine compassion, strong integrity, and fatherly demeanor makes him an ideal role model and leader. Altdent is fortunate to have such a highly respected founder.

Dr. Fielat obtained a Doctor of Dental Surgery degree from the University of Jordan, prior to earning his Specialty Certificate in Pediatric Dentistry at the University of Southern California & Children’s Hospital. He completed USC’s pediatric dental residency program at the Children’s Hospital where he treated children of all ages for various systemic diseases. Dr. Fielat is a firm believer in utilizing sedation dentistry to provide a pleasant and enjoyable experience for children, his most enduring philosophy. He has guided and grown his “Dentistry 4 Kids” pediatric dental group to nine locations, created a profitable operating model, and forged a multi-million dollar business with the potential for much more. 

Dr. Fielat has served as a member of the Tri County Dental Society (Inland Empire, CA), and the California Dental Association, California Society of Pediatric Dentistry, and as a Member on the American Dental Association and the American Academy of Pediatric Dentistry.

Denny Kon - Chief Financial Officer

As fractional CFO for Altdent, Denny applies more than 25 years experience working with large Fortune 1000 companies, down to small business ventures. That experience helped him garner invaluable knowledge and expertise in the disciplines of finance and accounting. He has been engaged with people, processes, and technology to help drive profitability for our partners. He currently plans and implements cost effective accounting systems and methodologies to achieve successful integration of sound financial practices.

Denny founded Crown Advisory Group in 2015, a business advisory firm specializing in providing fractional CFO services with complete accounting and financial reporting for companies. He has directed numerous M&A transactions, due diligence processes, and liquidity events in the healthcare arena, including Dental Support Organizations, dental technology companies, and medium to large group dental practices.

Denny earned his Bachelor’s degree with honors, in Accounting & Business Administration from Loma Linda University, in Southern California. He began his career with Ernst & Young, a Big 4 accounting firm, and maintains the designation of Licensed CPA. He is an esteemed member and affiliate of Financial Executives International and the CFO Alliance.

Queen Botrus - Operations Manager

As Operations Manager for Altdent, Queen applies her experience in various roles within the dental and DSO field. She has a background in sales, hospitality management, and project administration. She has applied her many talents in various sectors, to quickly ascend the ranks in growth organizations.

Queen served as Executive Assistant to the "C" level team at an Orange County, California Dental Support Organization, eventually being promoted to Assistant Director of Operations. She provided guidance in all key areas of the organizations departments, including HR, marketing, insurance services, and financial accounting.

Queen earned her Associate's degree with honors, in Paralegal Studies Administration from South Coast College, in Southern California.


To support our entire team, so they may provide great oral health care, while being in the service of others. To foster personal and business growth for our partner doctors. To educate and empower each individual in our organization to be their best. Within the next three years, become a leading dental support organization in the South Western Region of the United States with 30+ offices. 

“My model for business is The Beatles. They were four guys who kept each others negative tendencies in check. They balanced each other and the total was greater than the sum of the parts. That’s how I see business: great things in business are never done by one person, they’re done by a team of people.”

– Steve Jobs