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About IVS

About Us

With 20 years of history in the fertility arena, In Vitro Sciences understands you want control of your practice’s destiny and autonomy in day-to-day operations. To ensure this, we propose a partnership that allows us to be part of your team while you to control the direction of your business and keep your primary focus on your patients’ quality of care. Take a moment to learn more about partnering with In Vitro Sciences and the unique benefits we bring to the table.


Strategic Partnering

You know your local market better than anyone. Couple that with our national focus and expertise in strategic planning to position your practice for growth in this rapidly changing healthcare environment.

Operational Streamlining and Support

Using our expertise with the athenahealth revenue cycle management platform and integrating it with your electronic medical record system, In Vitro Sciences can offer you a variety of workflow solutions and templates that streamline business operations so you can focus on patient care.

Capital and Growth

Success is about more than running a profitable practice day-to-day. Having the vision to look outward and toward the future to create your ideal practice sometimes takes extra firepower. Whether it's scaling your group or market share, In Vitro Sciences can provide the strategic due diligence and the capital to help you get there.


Derek M. Larkin, Chief Executive Officer, is a dynamic and driven executive, bringing with him over two decades of executive leadership experience across the pharmaceutical and healthcare fields. Before joining the IVS team in 2020, Derek served as Chief Executive Officer for Boston IVF, one of the largest in vitro fertilization practices in the country. He played a vital role in tripling the company’s revenue, launching a national chain of IVF centers, and leading one of the largest IVF mergers ever undertaken in the U.S. Prior to this, Derek spearheaded the launch of Boston MFM, the largest independent practice of maternal-fetal medicine specialists in New England. Derek is thrilled to be on board and for the opportunity to lead IVS on a new path of growth. He earned a BA from the University of Massachusetts, as well as a JD from Suffolk Law School and an MBA from Sawyer School of Management at Suffolk University in Boston, Massachusetts. He is a member of the American Society for Reproductive Medicine (ASRM), the New England Fertility Society, and is on the board of Fertility Within Reach.

Brian PskowskiBrian Pskowski, President and Chief Operating Officer, has led the day-to-day operations of IVS for the last 10 years and has been involved in the fertility business for 20 years. In his role, Brian has been directly involved in the growth of IVF practices including coordinated new IVF facility and office build-outs, negotiating hundreds of practice vendor contracts and financing arrangements, designing numerous physician compensation models and putting in place professional liability insurance programs for many physicians.  He was formerly the Chief Financial Officer of Women’s Health USA, Inc., and a founding member of its management team. He is a Certified Public Accountant.

Beth Zoneraich, Market President, IVS, and Chief Executive Officer of one of our partner centers, Advanced Fertility Care (AFC), is an entrepreneur and co-founder of AFC. She and her husband Nate Zoneraich started the practice in 2005 and built it into one of the most successful in Arizona. In her current role, she oversees day-to-day non-clinical operations of AFC and spearheads the consolidation and growth of AFC in the Arizona market. Prior to starting AFC, Beth was a Director at Home Depot.  She earned a BS from Cornell University and an MBA from Harvard Business School.

Paul VerrastroPaul Verrastro, Senior Vice President, IVS, and Chief Executive Officer of one of our partner centers, Center for Advanced Reproductive services (CARS) an academic affiliate of UCONN School of Medicine.  Paul is based at CARS and heads all of its non-medical operations.  He has spoken nationally and regionally on the subject of Fertility Practice Management and is a past officer of The Association of Reproductive Managers (ARM) a professional group of The American Society of Reproductive Medicine (ASRM). Paul has been a healthcare executive for 25 years, and nearly 20 of those years have been with IVS.

Colleen SheaColleen Shea, Vice President, is a Certified Coder and has led the IVS billing and collection operation for nearly 20 years. Colleen customized the use of our billing platform enabling more effective IVF cycle billing, and lowering average time to collect payments from health plans. She has led several practice system conversions, providing leadership over system integration and workflow process improvement.  Prior to joining IVS, Colleen worked for both large healthcare providers and independent physician practices. With over 25 years in health care Colleen is a subject matter expert in practice management.

David is a Managing Partner in Sverica’s Boston office, having joined the firm in October 2006. He also sits on the Board of Center Rock, Dexmet, Med First, Resonetics, and US Liner. David is a former Director of RestorixHealth which was sold to Leonard Green & Partners. Prior to joining Sverica, David served as a senior manager at The Parthenon Group, a strategy consulting firm, where he provided advisory services to private equity, mid-market and Fortune 1000 clients. Prior to joining Parthenon, David worked for Bain & Company as a consultant. Between Bain and Parthenon, he conducted a business turnaround as President of a manufacturing company in the custom wood products industry.

David graduated with distinction from the U.S. Naval Academy with a BS in Mechanical Engineering after which he served as a pilot and squadron maintenance division officer in the Navy. He transitioned from the Navy by attending the Amos Tuck School at Dartmouth College where he earned his MBA with distinction and was an Amos Tuck Scholar.

Gregg is a Partner in the Boston office of Sverica. He focuses on sourcing and evaluating new investments, transaction execution, and portfolio company operations.

IVS Centers of Excellence

Our Partner Centers

We're proud to have long-time partnerships with some of the best fertility centers in the Northeast and are working to deepen that footprint. We understand that each market is different and look forward to putting our bench strength to work in understanding your business and your patient population - helping you achieve your vision of an ideal practice.

IVS services

World-Class Management Services

Let us put our business management skills and experience in play to help you meet the ideal vision of your practice.