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Nourishing growth through ideas
Who we are
Who we are
Calcium: Nourishing Growth

The essence of Calcium is nourishment–nourishment of our clients and their brands, of our own extraordinary people, and of society and the wider world. We nourish through the richness of our insights, ideas, imagination, and innovation as well as through our caring and compassion.

Nourishment is about making things grow and thrive. This applies to the clients and brands we are privileged to serve–we are driven to use our skills and talents to give brands the strongest voice possible, helping them to get heard, get results, and get ahead.

It also applies to the people of Calcium. We are committed to providing an agency environment that stimulates individuality, creativity, and personal growth. When our people grow, our clients benefit. And that's how we grow, too.

What we do
What we do
Serving the Brand

Calcium's tagline is "brand nourishment," which succinctly captures our view that maximizing brand health is the best way to grow businesses.

The unique way we nourish brands is by focusing all our knowledge, skill, creativity, and innovation into a logical, stepwise system called The Growth Process.


The Growth Process ensures that all our strategic, creative, and tactical solutions are driven by the most salient and meaningful insights and are aligned with a central, guiding element we call the Core Brand Idea.

By maintaining a high degree of single-minded focus, we enable entire campaigns to speak with a unified strategic and creative voice–dramatically strengthening impact and productivity.

The Approach
The Approach
creativity is in our bones

Creativity is the force that propels content into the hearts and minds of audiences. Without imagination and creativity, messages will disappear into the vast ocean of content that customers face every day.

Whatever the medium (online or offline), our creative work at Calcium emphasizes freshness, impact, and memorability–but also strategic alignment. In our view, the very best creative displays verbal, visual, and conceptual firepower while also staying true to the brand’s well-defined strategic imperatives. For us at Calcium, it’s not creative unless it moves someone . . . and moves the needle.

Calcium's Current Clients
Our current clients
  • Acceleron
  • Avion Pharmaceuticals
  • Blueprint Medicines
  • Bristol Myers Squibb
  • Chiesi
  • Eggland's Best
  • Harmony Biosciences
  • Incyte
  • Knipper
  • Nabriva Therapeutics
  • Savara
  • Veradigm
The Recognition
The Recognition
Rewards of awards

We work for our clients and their brands–not for awards. Still, it’s gratifying when our client work–and even our entire agency–is recognized by our industry peers for quality, uniqueness, and effectiveness. Our ultimate success metric is moving the needle for the clients we serve. But winning as many industry awards as we have also provides welcome validation for our hard work and high standards. In our world, winning work tends to be powerful and effective work–so we are absolutely committed to continuing our winning ways.

Among the recent awards we've won:

  • Over 60 awards from major shows
Calcium Leadership
Steven Michaelson - Founder/Chairman

Steven Michaelson


Steven Michaelson has spent over 35 years in the advertising industry, more than 25 of them in pharmaceuticals and the recipient of two of the highest awards in our industry, 2019 Industry Person of the Year and the 2018 Entrepreneur of the Year.

Steven gained industry-wide recognition as the Founder and CEO of Wishbone, a highly successful and unique start-up that thrived for 13 years and was awarded ‘Agency of the Year’ in 2009. Wishbone was eventually acquired by Publicis.

Continuing in that tradition, Steven founded Calcium in 2012, pulling together the original Wishbone partners to help guide and run it. Calcium has 9 ‘Agency of the Year’ awards.

Earlier in his career, Steven held creative leadership positions at KPR, FCB, Harrison Star, and Robert A.Becker. He has created successful campaigns for such brands as Zocor, Glucophage, Plavix, EpiPen, Oxycontin, Depakote, and Diovan. Before entering the pharmaceutical industry, Steven did award-winning work for clients like Ford, Lanvin, Absolute, Omni and Penthouse magazines, and Sasson jeans.

Steven is married with three children and lives in New York City and East Hampton, NY. When he is not working or spending time with his family, you can find him on the tennis court.

[email protected]

Judy Capano - Chief Executive Officer

Judy Capano

Chief Executive Officer

Judy brings more than 25 years experience on both the pharma client side and agency side to her position as the strategy lead for Calcium. Judy began her career in Sales, Hospital Sales, Training, and Sales Management for Marion Merrell Dow. Moving to the agency side, Judy was then EVP, Director of Client Services at Harrison Star and COO/Strategy Officer for McCann Torre Lazur Worldwide, where she ran the global agency network and was responsible for mergers/acquisitions/startups. More recently, Judy was Partner/Chief Strategy Officer at Wishbone. A cum laude graduate of Siena College (she currently sits on the board of trustees), Judy is married with 3 children (who look strikingly similar to Steven Michaelson’s kids) and lives in New York, NY.

[email protected]

Greg Lewis - Managing Partner, President

Greg Lewis

Managing Partner, President

In 2019, Greg joined Calcium as President - prior roles included Managing Partner at WPP’s Grey Health Group and President at Havas Health and You. Greg is a seasoned healthcare marketing leader with 2 decades of experience launching brands, managing product lifecycles, and leading teams and agencies. With a range of experience from biologics to toothpaste, and from large DTC-launched brands to specialty products, he has a keen understanding of the fundamentals needed to drive brand growth. Greg received a dual degree in marketing communications and political science from Villanova University. He has taken executive classes at the Tuck Business School at Dartmouth and the Harvard Business School. In 2017, he was recognized as a Transformational Leader by PM360. He sits on two non-profit boards and lives in Summit, NJ with his two children.

[email protected]

Steve Hamburg - Managing Partner, Chief Strategy Officer

Steve Hamburg

Managing Partner, Chief Strategy Officer

A creative strategist. A strategic creative.

Steve has been practicing the art and science of strategy for over 25 years. He got his start in consumer advertising, where he developed strong foundational skills working on large-scale consumer brands. Given his strong background in science, Steve eventually migrated to pharma and healthcare, where he gained increasingly senior roles in several leading agencies and networks.

Steve has wide category, brand, and client experience, working on everything from the most science-driven biotech to the most marketing-driven big pharma—while also keeping a hand in consumer advertising/DTC. He has played a critical role in developing and implementing brand strategy in categories like oncology, immunology, rare diseases, neurology, and cardiology. His insights and thinking have helped drive many successful launches and ongoing campaigns.

Steve currently leads the Integrated Strategy Group at Calcium, which is focused on the convergence of insight generation, strategy development, and engagement/activation planning. Creating synergies—rather than silos—among these disciplines results in a stronger, more holistic strategic vision that can guide brands more adaptively and effectively through today's challenging marketing landscape.

Steve is a graduate of Brown University, where he studied science, social science, and the humanities. He's authored numerous articles for leading trade publications and served as a juror for major awards shows. Steve lives outside of New York City with his family, various pets, and a constantly evolving collection of guitars.

[email protected]

Garth McCallum-Keeler - Managing Partner, Chief Growth Officer

Garth McCallum-Keeler

Managing Partner, Chief Growth Officer

Garth has almost 20 years’ experience working in US and global biotech/specialty markets. His range of expertise extends from pipeline work to in-line marketing efforts. Garth also has extensive industry-side work experience, including Genzyme, Insmed, and Dey, all at Director-level roles within Marketing. His experience includes work in oncology, dermatology, renal, rheumatology, endocrinology, pulmonology, emergency care, vaccines, burn care, devices, and genetic disorders. In addition to his extensive background in healthcare, Garth is also a sociologist. He began his work career teaching undergraduate courses in sociology. Coupling his analytic and academic experience with a deep understanding of healthcare marketing, Garth brings a unique yet grounded approach to strategic planning and tactical execution.

[email protected]

The Team
Calcium Careers

Are you a smart, strategic thinker ready to collaborate with a team of experienced and passionate problem solvers? If you've got a nourishing attitude and a strong desire to help brands grow stronger, you just might be the next member of the Calcium team.

For career information, contact Berry Woodrow at [email protected] or 215.446.8010.

UnitedHealthcare creates and publishes the Machine-Readable Files on behalf of Calcium in accordance with the Transparency in Coverage Rule. The Machine-Readable Files are available at

Contact Calcium

Calcium Office Locations

429 Lenox Avenue
Miami Beach, FL 33139

TEL: 786.744.5440

245 5th Ave
10th floor, 1004
New York, NY 10016

TEL: 212.971.1345

The Curtis, Suite 250-S
Independence Square West
Philadelphia, PA 19106

TEL: 215.238.8500

315 Montgomery Street
Ninth Floor
San Francisco, CA 94104

TEL: 415.675.8821

To get a taste of what we can do for you, contact Greg Lewis, Managing Partner / Group President at [email protected] or 908.625.5753.

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