About Us

Our Values and Mission StatementManagement Team | myNEXUS Cares | Board of Directors | Advisory Board

Intelligent Care. Connected.

myNEXUS is a technology-driven, care and benefit management service that enables individuals to live healthier lives in their homes. Our proven clinical model connects individuals to intelligent care delivering independence at lower costs.

myNEXUS Values

  • Compassionate – We care about others and show it in all that we do with a servant’s heart.
  • Accountable – We always do the right thing, even when it is not easy.
  • Results-Driven – We turn insights into action, fueled by our pursuit of excellence & innovation to achieve the best outcomes for all stakeholders.
  • Engaged – We have fun at work and promote health & empowerment for our employees and customers, being the best we can be, every day.
  • Service Oriented– We are good stewards of our resources, protect the environment and give back to our communities.

myNEXUS Mission Statement

To empower our customers by incorporating technology with clinical expertise, transforming health delivery and promoting the advancement of care for the people we serve.

myNEXUS Vision Statement

To be the leader in health resource optimization.

The myNEXUS management team has extensive industry expertise and a track record of success individually and as a team.

John W. “Wally” Dant, Executive Chairman

Wally brings an extensive home care and hospital management background to myNEXUS. Most recently, he was the Chief Executive Officer of SunCrest Healthcare, developing this home care and hospice company from start-up to $100 million in value, selling to Almost Family, Inc. in December, 2013. Previously he was a director with Navigant Consulting, a leading healthcare consulting firm. Prior to Navigant, Mr. Dant served as senior vice president-operations for HCA’s home care operations at the time when HCA had more than 400 home care locations generating over $1 billion in revenue.

Mr. Dant also has an extensive background with hospital operations and managed care contracting, having worked for both hospital management and insurance companies. Mr. Dant holds a bachelor’s degree from Purdue University and a master’s in business administration from the University of Louisville. Wally also serves on the Foundation Board of the largest non-profit senior services organization in middle Tennessee, Fifty-Forward.


Juan Vallarino, Vice Chairman

Mr. Vallarino has more than 30 years of experience in the health care industry. He has held key management roles in various sectors of the industry, physician practice management, institutional providers, and health care insurance companies, as well as his own consulting practice.

Mr. Vallarino spent 21 years with HCA and its predecessor companies. Most recently he served as Vice President of Employer & Payer Engagement for HCA with responsibility for over $30 billion in net revenues. During his tenure with HCA, he has held positions in Government Programs Compliance, Home Health Services and Physician Management Services. Prior to HCA, Mr. Vallarino served as Senior Vice President of Development for FPA Medical Management.

Mr. Vallarino is the Vice Chairman of myNEXUS, having previously served the company in a strategic advisor role since its inception.

Mr. Vallarino currently serves on the board of Castlewood Treatment Centers and serves as a strategic advisor to several healthcare companies.

Mr. Vallarino also serves on the Board of the Grameen Foundation, a globally renowned organization focus on addressing poverty.

Mr. Vallarino holds an MBA from Rutgers University.

Mr. Vallarino and his wife of 30 years, Elizabeth, reside in Nashville, Tennessee


McArthur VanOsdale, President, CEO

McArthur co-founded myNEXUS after extensive entrepreneurial experience in developing and managing services and technology platforms across healthcare. Prior to myNEXUS, McArthur served as Chief Development Officer for SunCrest Healthcare where he successfully developed SunCrest into one of the top 10 in-home providers nationally. Previously, McArthur co-founded Harpeth Consulting, a management consulting and strategic advisory firm. Through his leadership, Harpeth exceeded a 70% year-over-year growth rate servicing payer, provider and technology clients.

McArthur also served in various senior level roles for AIM Healthcare and Navigant Consulting focused on technology enabled cost containment services for payers & providers. Through his experience in healthcare, McArthur specializes in home care operations, telehealth & post-acute alignment partnerships, payer claims technology, data mining, revenue cycle technology, managed care contracting, and hospital operations.

McArthur is a major supporter of the local Middle Tennessee community as a Board Member of the Nashville Zoo, KIPP Nashville, and as a Commercial Real Estate Developer through his Company, V2 Capital.


Matthew Chance, Chief Operating Officer

As Chief Operating Officer Matt is responsible for providing strategic direction, product innovation, and valuebased network models within the delivery system. Prior to joining myNEXUS Matt provided strategic and operational oversight for all Health Engagement Initiatives for Cigna-Healthspring. These areas include Stars, Risk Adjustment, Utilization Management, Clinical Programs and Customer retention. These activities drove revenue and quality optimization related to all Medicare Advantage customers based on their unique needs. Matt worked with HealthSpring for 9 years, and was the COO of Healthspring of Alabama before moving to Cigna-HealthSpring enterprise operations. While in Alabama he helped develop various aligned incentive models to better connect the Healthplan and Provider community. Matt began his career in healthcare working with Hospitals and Insurers at AIM Healthcare Services. He lead operations for the Southeast region and was with AIM for 5 years.


Jonathan Davis, Chief Financial Officer

Jonathan brings over 20 years of experience in corporate finance/accounting and operations management. Before joining myNexus, Jonathan was CFO of the Medicare line of business for Humana, Inc. (Humana), one of the nation’s leading Medicare Advantage plans.

Prior to joining Humana, Jonathan served as the CFO for the Alabama market for Cigna HealthSpring (AL, MS and N. FL). In these roles he was accountable for financial reporting, accounts receivable, accounts payable, the annual Medicare Advantage product bidding process, data management/analytics, operational/clinical reporting and financial planning and analysis. Prior to Cigna HealthSpring, Jonathan held several operational and financial management roles with United Healthcare over a 10-year period.

As the CFO, Jonathan is responsible for leading all areas of accounting and finance, including financial planning and analysis, claims management, general accounting, billing and collections, payroll, and accounts payable. Jonathan received a Bachelor of Science in Finance and M.B.A from the University of Alabama at Birmingham. He is also a licensed Certified Public Accountant in Tennessee and Alabama.”


Martee J. Harris, MBA, SPHR, SHRM-SCP, CCP, Chief People Officer

Martee brings more than 25 years of experience in human resources across several industries. She was most recently the Senior Vice President, Human Resources/Chief Administrative Officer with SunCrest Healthcare. Previously, she was the VP, Human Resources for Essent Healthcare, a regional hospital company. She is responsible for leading human resources, licensure, facilities management and myNEXUS’ charitable engagement activities.

Martee attended Tennessee Tech University and received her BBA from Wichita State University and her MBA from Tennessee State University. She has a lifetime Senior Professional in Human Resources Certification and is a Certified Compensation Professional. She has served on the boards of the American Red Cross and Alive Hospice and currently volunteers with Musicians On Call and KIPP Academy.


Chris Crabtree, Chief Service Officer

Chris is a successful executive leader who has experience in both starting/growing healthcare service companies and also leading divisions for the largest payer in the country. Most recently he served as Executive Director in the Optum division for UnitedHealth Group. In this capacity he was responsible for day to day ISNP operations for the state of Tennessee and also charged with overseeing OTA nationwide operations for INSPIRIS when it was acquired by Optum. Prior to UnitedHealth, Chris was the COO of NaviHealth. He was charged with building out all headquarter and field operations while implementing the new care management model in multiple states. Before joining NaviHealth, Chris was the Executive Vice President of Operations for MedSolutions. Serving as the highest ranking operations leader, Mr. Crabtree led all day to day servicing activities through the company’s tremendous growth to become one of the country’s largest radiology benefits management companies. As a result, MedSolutions call centers earned recognition from J.D.Power and Associates for “An Outstanding Customer Service Experience” in healthcare four consecutive times. Mr. Crabtree holds a bachelor’s degree in Science from Elon University and an MBA from Averett University.



Pam Hursh, RN, MBA, Chief Clinical Officer

Pamela’s career has focused on creating a continuum of offerings that enable individuals to maintain their health and independence while living and aging in their homes. A nurse by background, Pamela brings 25 years of experience working within major multi-payer health plans and managed care providers to develop and deliver cutting edge products. Her clinical operations experience and payer expertise will be essential to further development and delivery of post-acute services to meet the needs of diverse stakeholders.

Most recently, Pamela has held Senior Vice President Positions with Lifesprk and Univita. She has also held numerous progressive roles for United Health Group, including Vice President of Strategic Account Services and Client Implementation. She holds an MBA from the University of St. Thomas, a BS in Management from Cardinal Stritch University and Ripon College and a nursing degree from Fairview Deaconess School of Nursing and Augsburg College.


Scott Vasey, Chief Strategy Officer

Scott’s career comprises 25 years of involvement with Health Insurance, Health Services, and Post-Acute Provider organizations. Scott was instrumental in the development and management of care delivery systems with United Healthcare and UPMC. While with Optum he was responsible for designing and implementing products that improved quality and affordability for Health Insurance customers, back office operations, and value-based relationships between insurers and ACOs. Most recently, as SVP of Strategy, at Visiting Nurse Service of New York (VNSNY), the largest not-for-profit Homecare Agency in the United States, Scott, an industry pioneer, led a corporate transformation to value-based care models. In this role, he also led VNSNY’s managed care contracting, customer/partner solution development, enterprise performance improvement, innovation, and government program strategy including, grants, NY DSRIP PPS programs, and CMS bundled payments.

In addition to his corporate roles, Scott is a distinguished panel speaker in the Post-Acute-Care arena focusing on value-based relationships and risk-based quality driven platforms, and has been featured in the Visiting Nurse Association of America (now Elevating Home) and National Association for Home Care and Hospice (NAHC) events, as well as New York State home care, post-acute, and care management symposia.

Scott holds a BA from the University of Pittsburgh where he also did post graduate work in Social Work and Law. He has earned his Six Sigma Black Belt and is Lean Certified.

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Scott Blanchette, Chief Technology Officer

Scott’s career spans more than twenty five years in leadership positions across healthcare, academia and government. He served for more than a decade as Chief Information Officer (CIO) for a broad range of leading healthcare organizations, including executive roles in hospital, insurance, post-acute, and population health companies. He was the 2013 recipient of the MIT Sloan School of Business “CIO of the Year” award for innovation and leadership. Scott continues to play an integral role in funding a number of health, wellness, data aggregation and analytics, and Blockchain companies through his venture fund, Rear Echelon Capital.

Scott is a former CIO for three public healthcare companies – Healthways (now NASDAQ: TVTY), Vanguard Health (now NYSE: THC), and Kindred Healthcare (now NYSE: HUM), served as Chief Information Security Officer at Stanford University Medical Center, and managed a consulting practice at Ernst & Young. Earlier in his career, he spent more than a decade in the US military, including assignments in both the Army and Navy special operations communities – US Army 1st Special Forces and US Navy SEAL Team Three. He possesses BA, MS, and MBA degrees from James Madison, North Texas, and the University of Maryland, University College, respectively.



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Greg Miller, SVP, Business Development

Greg Miller comes to myNexus with over 20 years of healthcare experience across several business segments. Greg has a passion for identifying opportunities and developing solutions to deliver the highest quality and most affordable care possible. He believes this can be achieved by putting the patient at the center of the care model, effectively collaborating with participating providers and aligning incentives.

Prior to joining myNEXUS, Greg held leadership roles at Johnson & Johnson, was President of the TN Quest management company and served as the market COO/President of Cigna-HealthSpring of TN, was VP of Physician Strategy and Development for Cigna’s Delivery System Alliance team and served as Chief Growth Officer for PopHealthCare. Greg has a BA in Journalism with a focus in Advertising from The Ohio State University.


Niraj Patel M.D., Sr. Medical Director

Dr. Patel serves as a Senior Medical Director for myNEXUS. He has more than 17 years of experience in the healthcare industry in both clinical delivery and managed care. He has practiced in various clinical settings in the fields of internal, emergency, occupational and geriatric medicine. During this time, he has had the opportunity to be a member on various hospital committees while serving in leadership roles as a Medical Director within many healthcare systems and national organizations such as ECI, Emcare and Team Health.

Dr. Patel’s managed care experience includes serving as the National Medical Director for United Healthcare within the Optum and UMR divisions, where he worked in utilization and disease management, care coordination, transition of care, complex case review, and overall population health. Most recently, he served as the Chief Medical Director for UMR where he partnered with senior level executives, clinical managers, and operational staff to optimize clinical and business solutions to meet performance guarantees, develop clinical quality initiatives, and manage population health and internal ROI goals. He was also responsible for client reporting, and program and benefit plan review according to NCQA and URAC standards for the overall UMR book of business.

Dr. Patel holds an MD from Ross University and an Master’s in Health Administration from the University of North Carolina – Chapel Hill with a focus in Population Health and Analytics. He is board certified in Internal Medicine.


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Dr. Catherine Stallworth, M.D., CHCQM, Sr. Medical Director

Dr. Stallworth serves as a Senior Medical Director for myNEXUS. Dr. Stallworth has more than 27 years of experience in post-acute healthcare delivery.  As a board certified specialist in Physical Medicine and Rehabilitation, she has served in multiple leadership roles at the local and national level.  She is also certified in Healthcare Quality and Management by the American Board of Quality Assurance and Utilization Review Physicians.   Dr. Stallworth brings to myNEXUS an extensive knowledge and understanding of value-based care delivery in the post-acute setting.

She received her medical degree from Baylor College of Medicine where she also trained in Physical Medicine and Rehabilitation.  In 2009, she completed an Integrative Medicine Fellowship at the University of Arizona.  Dr. Stallworth was recognized as a 2012 Healthcare Hero by the Nashville Business Journal for her pioneering work in Integrative Medicine and her community involvement on the boards of The Healing Trust and Brightstone.  In her current role, Dr. Stallworth serves as a Senior Medical Director and provides clinical direction and oversight to our complex care coordination program.


Making a Difference In Our Communities


One of our core values is:

Service to the Communities in Which We Work and Serve – We are good stewards of our resources, protect the environment and give back to our communities.

It is important to us to have a team that is committed to making our communities and our world a better place to live, through volunteer work and financial contributions. We invite you to join our employees, who currently support the following organizations: