About us

Our CEO, Sam Waley-Cohen, founded Portman Dental Care in 2009 with the desire to be the best rather than the biggest privately-focused dental group. Culture and values are critical to us, with a simple ethos at our core to treat others as we would want to be treated ourselves.

Portman currently have 139 dental practices across the UK, including 16 orthodontic Portman Smile Clinics, caring for over 600,000 patients. Our practices offer a range of specialist, private and NHS dental care services, and are focused on continual development both in clinical skills and innovation.

We’re multi award-winning, with accolades including ‘Outstanding Business of the Year’ at the Dental Industry Awards for 3 consecutive years (2017 to 2019), as well as nationally recognised awards within many of our individual practices.

With clinical excellence and a first-class patient experience in Portman practices, our focus on care has resulted in an industry-leading patient advocacy, with an NPS of 84 (Net Promotor Score, is a measure of recommendation,)

To find your local practice and visit their website, please use our practice locator

Our Executive Team

Portman are a team of professionals who care about one thing only. You.

At Portman, our senior team has a wealth of experience from the worlds of finance, commerce and health. We have been drawn together through a collective ambition to ensure excellence in dental practice. Our vision is holistic and simple: you are at the heart of everything we do.

CEO and Founder

Sam Waley-Cohen

Clinical Director

Mark Hamburger

Finance Director

Darren Milne

Chief Operating Officer

Julie Ross

Business Development Director

Andy Sloan

Our vision and values

Our purpose is our patients.

With continued investment in technology and people, Portman Dental Care ensure that we always put patients first. 

Our Mergers & Acquisitions Team

Our success is your success

Complete clinical freedom, central financial and administrative assistance, and the support of a well-trained and motivated team. If you're looking to sell your dental practice, we'd be happy to hear from you.

Director of Mergers & Acquisitions

Gary Chapman

Our Clinical Team

Director of Clinical Dentistry

Rebecca Sadler

Director of Clinical Dentistry

Roy Bennett

Regional Clinical Lead - South West & Wales

Philip Pettemerides 

Director of Dentistry

Catherine Tannahill

Regional Clinical Lead - North West

John Hewitt

A national network of clinical support

Our directors of clinical dentistry and regional clinical leads work closely with our clinicians to offer support, guidance and training.

Regional Clinical Lead - Northern Ireland

Pearse Stinson

Regional Clinical Lead - Scotland

Kevin Lochhead

Regional Clinical Lead - South West

James Critchley

Regional Clinical Lead - South East & London

Stuart Jacobs


Fmc 2019 Award Logo
Award Logo 2018
Dental Industry Award - Portman Dental Care
Private Dentistry Awards - Portman Dental Care
The Dentistry Awards - Portman Dental Care
Elite Practice Award - Portman Dental Care