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Our Founders

Dr. Matthew Haddad

Founder & Co-CEO

Dr. Matthew Haddad

Matthew Haddad brings tremendous experience in the dental surgical field to his role as Co-CEO of Specialty1 Partners. As a practicing endodontist, Matthew developed first-hand experience in expanding specialty dental practices by founding and growing Gulf Coast Endodontists to four locations across the greater Houston area. He leveraged this expertise running a specialty dental practice as one of the co-founders of Endo1 Partners, an organization created in 2019 to provide endodontists with the business support they need to successfully manage and grow their practices. Based on the success of Endo1 Partners, Matthew and his co-founders evolved the company into Specialty1 Partners, offering specialty dental business support to endodontic, oral surgery and periodontal practices. Under Matthew’s leadership, Specialty1 now serves more than 350 specialists across its 200+ locations in 27 states.  

Matthew received his Doctor of Dental Medicine from Case Western Reserve School of Dental Medicine in Cleveland and his specialty endodontic training at Boston University Henry M. Goldman School of Dental Medicine.

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Dr. Daryl Dudum

Founder & Co-CEO

Dr. Daryl Dudum

Daryl Dudum leverages his expertise as an endodontist in his role as Co-CEO of Specialty1 Partners, the largest and most respected dental surgical specialty organization.  Daryl is one of the co-founders of Endo1Partners, created in 2019 to provide endodontist practices with the business support they need to successfully grow their practice and optimize the patient experience. Based on the success of Endo1 Partners, Daryl and his co-founders evolved the company into Specialty1 Partners, offering dental specialty business support to endodontic, oral surgery and periodontal practices. Under Dr. Dudum’s leadership, Specialty1 now serves more than 350 specialists across its 200+ locations in 27 states.  The company has received numerous awards, most notably being recognized in the Inc 5000 fastest growing companies multiple times as well as being named the fastest growing Dental Company of 2022.

Dr. Dudum received his Doctor of Dental Surgery from University of the Pacific Dental School and his Certificate in Endodontics from Boston University Dental School.

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Dr. Mark Haddad

Founder & Co-CCO

Dr. Mark Haddad

Mark Haddad applies his experience launching three successful startup companies to his role as Specialty1 Partners’ Co-Chief Clinical Officer. After identifying a need for practice management services specifically designed for dental specialists, Mark leveraged his professional expertise in business, dentistry and patient care to launch Endo1 Partners in conjunction with three fellow practicing endodontists. Based on the success of Endo1 Partners, Mark and his co-founders evolved the company into Specialty1 Partners, offering specialty dental business support to oral surgery and periodontal practices. Mark’s current role enables him to fulfill his dream profession of ensuring high-value clinical practice management, robust clinical programs/training and high-quality patient care. 

Mark holds a Doctor of Dental Surgery from the University of Detroit Mercy and received his specialty endodontic training at Boston University Henry M. Goldman School of Dental Medicine. Early in his career, Mark developed a passion for teaching, training and developing fresh talent in the dental field. He held a clinical faculty position at the University of Texas School of Dental Medicine, where he recruited and trained dental residents from top universities. These experiences shaped Mark’s founding and expansion of Jamboree Dentistry, Gulf Coast Endodontics and Endo1 Partners and shapes the servant leadership approach he uses today.

Learn more about Dr. Mark Haddad

Dr. Darron Rishwain

Founder & Co-CCO

Dr. Darron Rishwain

Darron Rishwain’s extensive experience as a practicing endodontist provided the foundation for his role as Co-Chief Clinical Officer for Specialty1 Partners.  Darron has successfully managed his endodontic practice, Marin Endodontics, for the past 24 years.  This experience served the basis for his co-founding of Endo1 Partners to assist endodontists in the growth of their practices.  Based on the success of Endo1 Partners, Darron and the co-founders evolved the company into Specialty1 Partners to also support oral surgeons and periodontists.  In his role as Co-CCO, Darron applies his expertise in treating patients to effectively support the growing network of Specialty1 practices and doctors; this aligns with his core belief that doctors deserve and need clinical autonomy in running their practices.

Darron holds a Doctor of Dental Surgery from University of the Pacific Dental School and received his specialty endodontic training at Boston University Henry M.  Goldman School of Dental medicine.

Learn more about Dr. Darron Rishwain
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Executive Team

Meir Schwarzbaum

Chief Development Officer

Meir Schwarzbaum

In his role as Chief Development Officer, Meir Schwarzbaum manages the process of acquiring dental surgical specialty practices to join Specialty1 Partners, from initial contact through close of the transaction. Meir joined the Specialty1 team in 2019 and has played an instrumental role in the successful growth of the company, which now encompasses endodontic, oral surgery and periodontal practices.

Meir received his Master of Science in Management from Southern Methodist University and a Bachelor of Arts degree in Economics from Yeshiva University. Prior to joining Specialty1, Meir was co-founder and Director of Business Development for Guardian Dentistry Practice Management.

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Courtney Harman

Interim Chief Operating Officer

Courtney Harman

Courtney Harman serves as a board member and interim Chief Operating Officer for Specialty1 Partners. Previously, Courtney was the first employee and pivotal leader of U.S. Oral Surgery Management, a company founded to support oral surgeons with their back office operations so they can focus on patient care. She partnered with 2 initial practices and grew the company to a $300M organization with over 200 board certified oral surgeons.  After navigating the successful sale of USOSM to Oak Hill Capital in 2021, she joined the leadership team of Mindpath Health, with the mission of increasing access to mental health care that helps people thrive.

She holds an MBA from Stanford University and a Bachelor of Business Administration from the University of Missouri-Kansas City.

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Gilbert D’Andria

Chief Financial Officer

Gilbert D’Andria

Gilbert D'Andria applies his proven financial leadership skills within the healthcare sector as the Chief Financial Officer at Specialty1 Partners. His proficiency and financial insight play a pivotal role in steering the company's ongoing expansion and maintaining strong financial performance.

Gilbert’s career encompasses successfully managing all aspects of finance and accounting with significant emphasis on financial planning and analysis, budgeting, forecasting, audit, mergers and acquisitions, fundraising, investor relations, strategic planning, measuring operational performance, corporate development, IPO and integration of acquired companies.

After receiving his bachelor’s and master’s degrees in engineering at Georgia Tech, Gilbert then pivoted toward finance, earning his MBA from Emory University’s Goizueta Business School.

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Courtney Foster

Chief People Officer

Courtney Foster

Courtney helps happily unite business structure and human resources in her role as Specialty1 Partners’ Chief People Officer. Courtney applies her expertise across Specialty1, with responsibilities ranging from actively participating in the due diligence process for prospective new practices, to implementing post-acquisition HR integration/optimization, to driving Specialty1’s overall HR strategy, including the company’s culture, recruiting, compensation, benefits and payroll. 

Courtney received her MBA with a focus in Human Resources Management and Services from the University of Kansas and her doctorate in Organizational Leadership and Behavior at Creighton University. She has served as an HR executive in rapidly growing dental organizations.

Learn more about Courtney Foster

Chuck Bisantz

Chief Information Officer

Chuck Bisantz

As Chief Information Officer for Specialty1 Partners, Chuck Bisantz draws upon his prior experience in defining and executing technology-based improvements within a range of industries, spanning from startup ventures to Fortune 500 companies. Chuck oversees all of Specialty1’s IT-related migrations and ongoing management for Specialty1 practices as well as the company’s overall technology strategy, architecture and implementation to drive reliable, secure and scalable solutions.

Chuck received his bachelor’s degree from the University of Iowa. Prior to joining Specialty1, Chuck served as CIO for Abode Healthcare, a provider of the full spectrum of home health and hospice treatment. 

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William Getschow

General Counsel

William Getschow

William Getschow serves as General Counsel and Corporate Secretary for Specialty1 Partners, providing legal guidance and support for the company and serving as a legal resource for its specialist-doctor partners and their practices. Over the last 13 years, William has built extensive experience as an in-house attorney, handling a wide range of legal and commercial matters, including mergers and acquisitions, debt finance, regulatory, supply chain, compliance and litigation. He has occupied the role of general counsel for multiple companies since 2017. In such capacity, William has acted as corporate secretary for the Board of Directors and advised management teams on all legal matters.

William holds a bachelor’s degree in Economics from the University of Texas at Austin, an MBA in Finance from the University of St. Thomas (Houston) and a Juris Doctorate degree from the University of Texas School of Law. Prior to working as an in-house attorney, William worked in private practice for Beck Redden LLP and Akin, Gump, Strauss Hauer, & Feld LLP.

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Tony Manderschied

Chief Compliance Officer

Tony Manderschied

Tony Manderschied leverages his experience as a healthcare compliance and audit executive in his role as Specialty1 Partners’ Chief Compliance Officer. Over the course of his career, Tony has developed and implemented compliance, privacy and audit programs in various settings, including multi-site acute care health systems, academic medical centers and multi-state Medicaid Dental Support Organizations. His expertise in developing data-driven approaches to assessing and mitigating organizational risk while driving efficient and effective business operations is great fit for Specialty1’s role in growing specialty dental practices. 

Tony received his Bachelor of Science in Business Administration from Drake University. Prior to joining Specialty1, Tony served as the Chief Compliance Officer for KOS Services, a multi-state Dental Support Organization and the largest Medicaid provider several states. In many roles, Tony led organizational responses to audits and investigations initiated by various state and federal oversight agencies, including the Office of Inspector General, Centers for Medicare and Medicaid Services, Department of Labor and Medicaid Program Administrators.

Learn more about Tony Manderschied
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CLINICAL LEADERSHIP TEAM

Dr. Erin Duarte

Ventura Endodontics

Dr. Michael Caruso

Westchester Implant & Oral Surgery Group

Dr. Michael Sonick

Fairfield County Implant & Periodontics

Dr. Craig Hoffman

Wichita Endodontics

Dr. T.J. Tejera

Southwest Florida Oral & Facial Surgery

Dr. Scott Resnick

NYC Endodontics

Dr. Paul Towfighi

Capitol Periodontal Group

Dr. Jacob Butler

Wichita Endodontics

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