What We Believe

We are champions for better health, for those who need us most. This includes more effective healthcare outcomes for patients struggling with complex progressive diseases. We deliver better data, insights and tools for healthcare provider partners so they have what they need to practice their best medicine, which means Healthmap can deliver the best results possible for our clients.

What We Do

We’re a team of clinical and data analytics experts focused on specialty health management of complex progressive diseases. Our suite of value-based solutions includes risk-based Medical Cost Management, Quality Reporting/Close Care Gaps, and Risk Adjustment/Revenue Optimization, all aimed at achieving the clinical and financial goals of health plans, accountable care organizations (ACOs) and provider groups. We have a particular focus on kidney disease populations, as the leading fully independent kidney health management company in the U.S., which allows us to objectively align incentives with no vested interest in selling other kidney health services (such as dialysis).

How We Deliver

Healthmap uses clinical big data resources, high-powered analytics and proactive patient-centered care management across a spectrum of flexible specialty care management solutions, which include Medical Cost Management, Quality Reporting/Close Care Gaps, and Risk Adjustment/Revenue Optimization.

Healthmap collects disparate data, creates a composite view, and delivers actionable data for your business.

Meet Our Team

Joe Vattamattam

As Chief Executive Officer, Joe is responsible for defining and realizing the strategic vision and product suite for Healthmap. In his role, Joe is constantly seeking data gaps in the healthcare delivery system. As Healthmap bridges those gaps, he has a passion for identifying opportunities to use that data to enrich the quality of care delivered and compress the cost of care, all while keeping the patient’s experience a top priority. Read More...
Andrew Wall

As Chief Operating Officer, Andrew is responsible for Healthmap’s population health and technology-enabled services, as well as company operations. Andrew brings a blend of valuable experience to Healthmap, having run growth businesses, built organizations and developed senior leaders throughout his career. Read More...
Amit Johnsingh, MD

Dr. Johnsingh is a practicing Internist and Nephrologist with 15 years of experience, trained at Brown University, and is a Medical Director of Home Modalities at DaVita Dialysis. He is a member of Alpha Omega Alpha medical honor society, serves on the Board of Directors of St. Joseph's-Baptist Health and is the President of Medical Staff of South Florida Baptist Hospital. Read More...
Dr. Elizabeth Prence

As Chief Clinical Officer, Liz is responsible for the clinical validity of Healthmap’s products. She also guides the activities of Healthmap’s Scientific Advisory Board in the development of clinical algorithms, such as those applicable to the identification and treatment of chronically ill patients. Additionally, Liz applies her industry expertise in the areas of technology assessment, clinical utility demonstration, test utilization management, medical coverage policies, and laboratory-focused governmental regulations. Read More...
Kisha Thompson


As Vice President of Human Resources, Kisha is responsible for providing strategic leadership and direction on all facets of HR management, as it relates to organizational development, performance management, recruiting and staffing, compensation and benefits, and employment law. Kisha applies her drive and experience to re-engineer processes and develop new procedures to maximize efficiency. Read More...


Eric Reimer

Mr. Reimer was CEO of CareCentrix, the leading home health benefits management company, from 2008 – 2013. During his tenure the company tripled in size to nearly $1B in annual revenue. He previously was an officer at Magellan from 2003 – 2008 where he served in three distinct roles. First, Eric was the P&L owner for the Behavioral Health plan West division, a $400M division serving 20+ health plans. Then he was promoted to Chief Growth Officer of Magellan responsible for M&A, strategy, and sales...Read More



Ari Benacerraf
Ari Benacerraf is a Partner and member of the Investment Committee at Five Arrows Capital Partners, the U.S. middle-market private equity business of Rothschild Merchant Banking.Prior to FACP, Ari co-founded Diamond Castle where he was a Partner since 2005.  He played a leadership role as part of the Diamond Castle investment team and was a member of the firm’s Investment Committee.  Ari focused primarily on the healthcare sector while at Diamond Castle.  Representative investments...Read More


Bruce Lucas

While known for his leadership and entrepreneurial skills, Mr. Lucas brings creativity and out-of-the-box thinking into making Heritage a best of breed company that is not only profitable but is built for the long term. Prior to Heritage, Mr. Lucas was CEO of Infinity Investment Funds and an attorney with Weil, Gotshal & Manges where he represented large institutional clients such as Enron and GE. Mr. Lucas graduated cum laude from Indiana University Law School...Read More



Our Advisors

Steve Shulman
Mr. Shulman serves as managing partner of Shulman Family Ventures, a private equity firm since 2008. He is the former chairman and chief executive officer of Magellan Health Services (NASDAQ:MGLN), where he spearheaded the company’s successful turnaround, restructuring out of bankruptcy, and diversification into the nation’s foremost specialty healthcare managed care company...Read More


Tom Gaffney

A cofounder of Sleep Management Solutions, Tom has more than 15 years of health-care experience working across the landscape of the alternate site industry, including DME, Home Infusion, and most recently as an owner and operator of DME and sleep lab operations. Based on an understanding of the cost drivers related to sleep services, as well as the growth in this area of healthcare, Tom developed...Read More



Andrew D. Sherman

Mr. Sherman is currently a full-time consultant leading corporate development for Unified Physician Management (“UPM”), the nation’s largest physician practice management company focused on obstetrics and gynecology.  Mr. Sherman also currently serves on the Board of KBL Merger Corp IV (NASDAQ:KBLM), a healthcare-focused special purpose acquisition...Read More



Michael Langer

Michael Langer is a Managing Director at Five Arrows Capital Partners, the U.S. middle-market private equity business of Rothschild Merchant Banking.

Prior to FACP, Michael was a Partner at Diamond Castle which he joined in 2005.  During his time at Diamond Castle, Michael worked on all of the firm’s healthcare investments, including ...Read More



Joel B. Forman

Dr Forman is a practicing general cardiologist with interests in stress testing, echocardiography, lipidology and cardiovascular wellness.  He attended medical school at The Ohio State University and completed his internal medicine residency at Emory University with subsequent cardiovascular disease training at The Medical College of Virginia...Read More