About Us
BILLING SERVICES FOR MEDICAL PRACTICES
reducing the administrative burden on the physicians we serve.
Charlton Medical Holdings Inc. was established to provide Ontario physicians and medical groups with reliable, accurate, and personalized billing support.
With over a decade of experience, CMH has built a reputation for precision, responsiveness, and trust.
Our Ontario-based team works directly with physicians, practice managers, and healthcare organizations to ensure claims are submitted accurately, payments are reconciled properly, and billing questions are addressed promptly.
+10
Years of Experience
+250
Physicians Supported
100%
Ontario-Based Team
24/7
Personalized Support
We believe physicians deserve a billing partner they can trust — someone who understands the demands of their work and makes the billing side easier. By taking care of the administrative details, we help give physicians more time to focus on what matters most: their patients.
Our Mission
To provide physicians and medical groups with accurate, responsive, and personalized medical billing support that reduces administrative burdens and allows healthcare professionals to focus on patient care.
Our Vision
To be Ontario’s most trusted medical billing partner, recognized for accuracy, confidentiality, innovation, and exceptional client service.
A Team Built Around Accuracy
CMH's billing operations team consists of experienced medical billing clerks who specialize in OHIP claim processing, claim follow-up, reconciliation, and physician support.
Every member of our team is trained to handle confidential physician and patient information with discretion, and to provide accurate, responsive support to every client.
✓ Rejected claim review and resolution
✓ OHIP claim submission expertise
✓ Remittance advice reconciliation
✓ WSIB and private billing processing
✓ Physician onboarding support
✓ Strict confidentiality and privacy standards
Meet The Team
Our team combines years of medical billing experience with responsive, personalized support. We handle the details, answer questions, and help keep billing accurate and organized so physicians can stay focused on patient care.
Board Of Directors
President, Board of Directors
Dr. David Hamilton
Director
Dr. Shaneka Kulasingham
Director
Dr. Ian Buchanan
Management
Luke Mensour
Chief Executive Officer
Luke Mensour is the Chief Executive Officer of Charlton Medical Holdings Inc. He leads CMH’s strategic direction, business operations, client relationships, and organizational development. Luke works closely with the management team, Board of Directors, physicians, and healthcare organizations to strengthen services, improve operations, and support the company’s continued growth.
Brittany Shewchuk
Manager, Billing Operations
Brittany Shewchuk is the Manager of Billing Operations at Charlton Medical Holdings Inc. With more than 13 years of experience at CMH, she has extensive knowledge of medical billing, claim submission, reconciliation, reporting, and physician support. Brittany oversees CMH’s billing operations and works closely with clients and staff to ensure accurate, timely, and dependable service.
