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We Find the Best.
And Strive to Keep Them Here.

Our Tonic team features diverse individuals who are experts in their fields. We have specialists in every facet of PR communications, from digital and account, to hospital, media relations and social media. Together, we customize solutions and innovative approaches that deliver outstanding results. This is one reason many of our clients have been with us so long: wide and deep expertise, high-level professionals leading new, young talent, and consistent account management ensuring continued success over time.

Our People

Maryellen Royle: President

Maryellen Royle

Global CEO

Expert. Engaging. Respected. Genuine. Maryellen is a brilliant public relations strategist who has partnered over the past 20+ years with leading global organizations in pharma, biopharma, device and diagnostics, and consumer products. She is a natural leader who attracts top talent to Tonic. Maryellen forms lasting relationships with her clients and colleagues, bringing them the benefit of her experience and innovative ideas to deliver success. Most recently, Maryellen was named a “Top Women in PR” by PR News.

Stephanie DeViteri: Senior Vice President

Stephanie DeViteri

Managing Director, Philadelphia (U.S. Headquarters)

Three things are likely to strike those who meet Stephanie for the first time: her energy, her quick intellect, and her passion. Stephanie is a dynamic team leader who has brought considerable skill, insights, and creativity to clients for nearly 15 years. She is sought after for expertise in such areas as social influencer engagement, integrated consumer programs, and regulatory milestones. She instills trust and confidence that build long-standing client partnerships and thriving account teams.

Dana Lynch: Senior Vice President

Dana Lynch

EVP, Global Strategy & Business Development

Dana is an insightful, experienced communicator who knows how to strategize, organize, and lead to achieve PR goals. She’s been driving powerful global healthcare and consumer public relations programs for more than 20 years, and she’s accomplished great things for her clients as a result. She’s worked with many companies across categories, with specialties including strategic planning, corporate reputation, disease awareness campaigns, crisis communications, and internal communications.

Theresa Dolge: Vice President, Media Director

Theresa Dolge

Chief Media Relations Officer

For Theresa, the work is personal. She cares deeply about her client partners and the ways in which their work benefits patients. She is a master of interpersonal communications—she brings clients nearly two decades of experience creating strong relationships with reporters in professional, consumer, and online media. As a result, she secures stories in the Associated Press, USA Today, The Wall Street Journal, and Parade, among others. Before she joined Tonic, she was part of Fleishman-Hillard’s healthcare group in New York City.

Kate Callan: Vice President

Kate Callan

Senior Vice President

Targeted social media, meaningful relationships with physicians, advocates, patients, bloggers, and spokespeople, product launches, and running a tight ship—these are what Kate is known for. Over the past 10 years of working in healthcare PR at Tonic, Kate has been at the helm of multiple award-wining campaigns. She’s brought her expertise and skill to many clients across therapeutic areas, including gastroenterology, rheumatology, women's health, vaccines and consumer healthcare/OTC.

Jennifer Gallo: Vice President

Jennifer Gallo

Senior Vice President

With an aptitude for scientific data and a passion for writing, Jenny is a masterful PR communicator who forms lasting relationships with clients. Much of her success has been in the the pharma/biotechnology space; she’s run campaigns in rheumatoid arthritis, cardiovascular surgery, diabetes, and general OTC health. In the decade that Jenny has been dedicated to healthcare PR, she’s developed specialties in global thought leadership, data and regulatory actions, messaging, and disease awareness campaigns.

Celeste Longwell: Vice President

Celeste Longwell

Senior Vice President

Celeste is the smart, high-energy PR strategist who brings new, creative ideas that move the needle for healthcare clients. She brings the same drive and leadership as she did in college volleyball—energizing teams and bringing out their best. With nearly 10 years of healthcare PR experience, Celeste has recognized strengths in launching products, issues management, creating and executing consumer awareness campaigns, and building strong advocacy relations.

Hannah Macgregor: Director

Hannah Macgregor


Hannah has worked in the pharmaceutical industry for more than 10 years, first in market research with Synovate Healthcare, followed by account management with Athena Medical Communications. All of her experience combined makes her the outstanding planner, brand leader, and master of detail (qualitative and quantitative) that she is today. Hannah’s core strengths include key message development, patient and HCP educational materials and events, advocacy relations, organizational skills, client relationships, and team building.

Sue Pyle

Senior Vice President

Sue thrives on challenge. She’s an enthusiastic, passionate, creative PR leader who is gifted at building teams, growing business, and delivering results for clients. Specializing in pharmaceutical, biotechnology, and wellness, Sue has helped to launch, grow, and advance a host of initiatives and campaigns that help patients live better lives. Before joining Tonic, Sue worked with agencies Cohn & Wolfe and Spectrum. Sue holds a BA from The College of New Jersey and MS from Syracuse University.

Siobhan Reilly: Senior Account Director

Siobhan Reilly


Working for more than 10 years in medical communications and public relations, Siobhan has built recognized expertise in stakeholder engagement, product launches, and regulatory milestones. She also has a core strength in medical education, not surprising as her degree from University of Kent is in biomedical science. Siobhan began her PR career at Resolute Communications, and for the past 5 years has led Tonic UK teams in successful, award-winning PR programs across diverse disease categories.

Robyn Ungar

Senior Vice President

Robyn is a thorough thinker who looks at the big picture when partnering with clients. She always ensures a strategic, integrated and consistent platform approach is effectively pulled through in traditional and social media campaigns that deliver on marketing and sales objectives. Her long-term client, third-party and influencer/celebrity relationships have created much success for her clients globally. Robyn has managed and executed multiple consumer and healthcare PR campaigns, with a passion for elevating both large and small brands.

Colleen Brett: Vice President, Creative Director

Colleen Brett

Vice President, Creative Director

Enthusiastic, engaging, and richly talented, Colleen is a gifted designer and creative visionary who excels at bringing brands to life. As creative director at Tonic, Colleen combines the power of visual expression with exceptional strategic insight to benefit each brand, each program, and every client. Over more than 14 years working in healthcare communications, Colleen’s award-winning work has included many campaigns for many companies.

Dante DelVecchio

Vice President

Dante has a keen eye for strategic impact – building meaningful messages and campaigns that resonate with different audiences. His 14 years of experience in communications has run the gamut, starting as an award-winning journalist before moving into PR for nonprofits. With Tonic, Dante has managed a variety of projects across a diverse selection of clients, including big and small pharma companies, consumer products and advocacy. At the heart of it all is a flair for telling engaging narratives and connecting consumers to the larger story.

Sarah Cooper

Vice President

Sarah is a high-energy, committed professional who brings strategic ideas, rich expertise, and seamless execution to her work for Tonic clients. Her specialties include building partnerships, strengthening brands, tackling issues, and consistently driving measurable results. In addition to her track record in healthcare PR, Sarah’s background spans government relations, strategic marketing and lifestyle public relations, which brings a unique perspective to her work.

Julia Devaney: Vice President

Julia Devaney

Vice President

Determined, driven, and committed, Julia is a thoughtful and seasoned PR leader who thrives on achieving outstanding results for her healthcare clients. While working at Cancer Treatment Centers of America, she led communications, special events, and speechwriting for the hospital. As vice president at Tonic, Julia leads a team driving national consumer and HCP awareness campaigns, leveraging both her “client side” experience and her personal commitment to PR work that benefits her clients as well as patients and healthcare professionals.