About WNS-HealthHelp

Vision: To be a valued resource for payers and providers, ensuring the best care and outcomes for their members and patients.

Mission: HealthHelp collaborates with payers and providers to improve patient safety and deliver quality care through an evidence-based, educative, and collaborative model, focused on improving outcomes and reducing healthcare costs.

HealthHelp, a WNS Company, is a utilization management partner that collaborates with health plan leaders and providers to improve care and realize sustained cost savings.

Our evidence-based, clinical decision support and consultative team monitors and evaluates the latest advancements in healthcare to help you deliver quality care at lower costs in a changing world.

Leadership Team

Kariena GreitenChief Executive Officer

Kariena Greiten |

Chief Executive Officer

Kariena Greiten serves as the CEO of WNS-HealthHelp. In this role, Kariena is responsible for the performance and compliance of HealthHelp that oversees the management of high-tech, high-cost healthcare specialty spend for health plans. Prior to WNS, Kariena held management positions in Magellan Health, CIGNA Health Services, Tymetrix and Bank of America.

Cherrill FarnsworthNon-Executive Chairman and  Head of Strategy, Healthcare

Cherrill Farnsworth |

Non-Executive Chairman and Head of Strategy, Healthcare

Cherrill Farnsworth serves as the Non-Executive Chairman & Head of Healthcare Strategy. Cherrill is a national expert on changing health care regulations and an entrepreneur who has started seven successful companies till date. As an industry expert, she is a regular speaker at business and health care symposia and is considered a national authority on changing healthcare regulations. Since 1984, Cherrill has been a regular spokesperson for radiology management and reform before the Medicare Payment Advisory Commission (MedPAC) and the Centers for Medicare and Medicaid Services (CMS). She has testified on the need to regulate quality in radiology at the House Ways & Means Committee and Congress. She is also a member of the National Quality Forum (NQF), which was formed by the US Senate in response to the Institute of Medicine's report on medical mistakes. In recognition of her achievements, Cherrill has received the KPMG Peat Marwick High Tech Entrepreneur of the Year Award and the Ernst & Young Entrepreneur of the Year Award. The National Association of Specialty Health Organizations has named her ‘Most Influential in Specialty Health.’

Mark ConroyChief Information Officer

Mark Conroy |

Chief Information Officer

Mark Conroy has over thirty-five years of engineering experience in providing high-technology solutions utilizing a very diverse background in both computer hardware and software disciplines. Having spent the last 28 years working exclusively for start-up companies, Mark has keen insight into navigating the Information Technology landscape and arriving at the most cost-effective and risk-mitigated engineering solutions. During his 15-year tenure at HealthHelp, he has built an information technology platform that is innovative, secure and robust. Prior to joining HealthHelp, Mr. Conroy co-founded ESX Engineering where he served as vice president of a fast-paced health-care and Internet-oriented information technology consulting firm. Prior to Joining ESX, Mr. Conroy served as the director of Software Development and Engineering for Physix, a leading provider of physician-workflow software. Mr. Conroy is native to the Houston, Texas, area where he attended the University of Houston College of Technology.

Todd SabathChief Sales Officer

Todd Sabath |

Chief Sales Officer

Todd Sabath serves as the Chief Sales Officer of WNS-HealthHelp. In this role, Todd is responsible for all business development and marketing activities. Prior to WNS, Todd held various leadership positions at Optum, Exela Technologies, and Medical Mutual.

Todd SilmonVice President, Operations

Todd Silmon |

Vice President, Operations

Todd Silmon joined HealthHelp in 2012. With over 18 years of experience in operations management, he has overseen as many as 500 employees. Prior to joining Healthhelp, Mr. Silmon served as Enterprise Workforce Planning Manager for Thermo Fisher Scientific and was responsible for achieving industry-best service for several domestic and international contact centers. He has a proven track record for increasing operational effectiveness, driving efficiency through workforce optimization, and developing staff. Mr. Silmon has been responsible for all aspects of contact center operations. He has also engaged in multiple Voice of the Customer (VOC) initiatives resulting in customer retention and service-level consistency while reducing operating cost. Mr. Silmon received his B.S. degree from the University of Houston – Downtown. Throughout his career he has been principally engaged in managing metrics-orientated operations designed to produce best-in-class service.

Chris SullivanVice President, Strategy and Development

Chris Sullivan |

Vice President, Strategy and Development

Chris Sullivan brings over fifteen years of sales, marketing, and operations experience to HealthHelp. He has extensive experience with healthcare plans including considerable work in government relations, development, and Medicaid policy and contracting. Prior to his role at HealthHelp, Mr. Sullivan served as the Executive Director of Operations and Strategy for a national health plan. He was responsible for overseeing all strategic planning, operations, client relations, finance, network development, contract negotiations, implementations, and marketing to ensure positive health outcomes, cost containment, and market expansion throughout the US and Puerto Rico. Early in his career he also worked for US Senator Wayne Allard handling healthcare policy issues. Prior to his current role, Mr. Sullivan served as the Executive Director of Strategy & Development for HealthHelp overseeing all of the business development initiatives. Now as the Vice President of Strategy and Development, Mr. Sullivan is responsible for leading product and sales development, developing strategic partnerships with healthcare organizations, and leading cross-functional teams. Mr. Sullivan completed his Masters of Business Administration from Colorado State University.

Laticia MillerSenior Vice President,  Client Services

Laticia Miller |

Senior Vice President, Client Services

Laticia Miller serves as the SVP Client Services of WNS – HealthHelp. In this role, Laticia is responsible for facilitating on-time delivery of HealthHelp’s clinical quality and safety programs for new clients, as well as ongoing performance management and improvement. Laticia has earned a Master Black Belt in Six Sigma and is an expert in process transformation, redesign, and growing multiple start-up organizations. In the industry, she has contributed through her leadership efforts with the HIMSS ME-PI Committee and Innovation Pathways working group.

Adrienne JacobsVice President, Human Resources

Adrienne Jacobs |

Vice President, Human Resources

Adrienne is an accomplished HR professional with experience building effective “people processes” for growth companies. Over the years, she has earned the reputation of being able to attract quality talent, build great corporate cultures, and foster uncommonly high levels of employee engagement and retention. She has a B.S. Degree in Business Administration (HR Management Concentration), from the New York Institute of Technology and the Senior Professional in Human Resources (SPHR) Certification from the HR Certification Institute.

Om SinghCorporate VP - Finance

Om Singh |

Corporate VP - Finance

Om Singh (OP) is global finance controller for WNS. He leads the international locations finance & accounting function for WNS, spread across multi-locations in China, Philippines, Sri Lanka, South Africa, Romania, Poland, Spain, Turkey and UK in Europe, Costa Rica and North America. He also Heads Finance for HealthHelp and Denali acquired entities of WNS, OP is Chartered Accountant & Cost Accountant by training. OP has decades of experience at senior finance leadership role across geographies. Prior to joining WNS he was leading finance for Zavata Inc (now acquired by Southerland). Prior to Zavata he worked with HeroITES a Hero Honda Group Company, BPL Limited and The Associated Cement Companies Limited at various locations across India.

Medical Team

Anthony DeFrance, MDMedical Director of Cardiology

Anthony DeFrance, MD |

Medical Director of Cardiology

Dr. DeFrance has a unique background including clinical interventional cardiologist, chief medical officer, educator, outcomes researcher and entrepreneur. He has expertise in appropriate utilization of technology in medicine, healthcare economics, value based metrics, and educational design and delivery. Dr. DeFrance is currently the Medical Director of Cardiology for HealthHelp. He has worked with HealthHelp for over ten years at one point serving as chief medical officer. In these capacities he has led large teams of healthcare professionals in writing evidence based appropriate care guidelines and rule sets which improve the quality and safety of medicine for over 20 million people in the US while also creating sustained savings in healthcare. He has also designed clinical decision support systems that are currently in use helping to improve patient care. In 2018 Dr. DeFrance founded MedMentor, an education company that provides state of the art CME content using the latest in eLearning science and online delivery platforms. Dr. DeFrance is also the founder and President of Digimedica, a consulting and educational design and delivery company for healthcare professionals, hospitals, and universities. He is passionate about creating systems to optimize knowledge transfer and has won numerous awards for teaching excellence during his career. He is an expert in cardiovascular CT imaging and has taught more than 3,000 physicians how to perform and interpret cardiac CT nationally and internationally and has lectured extensively on this subject. Dr. DeFrance has a stellar reputation in the medical field and continues work to improve the quality and safety of patient care in the US.

Jon D. Shanser, MD, FACRMedical Director of Clinical Services

Jon D. Shanser, MD, FACR |

Medical Director of Clinical Services

Dr. Shanser is a board certified Diagnostic Radiologist who practiced with Bay Area Radiologists in San Francisco from 1981 to 2009 and subsequently at the Reno Diagnostic Center in Reno, Nevada. Through his four-decade career, he served as an Assistant Clinical Professor of Radiology at the University of California San Francisco (UCSF), and he has held leadership positions in both the American College of Radiology (ACR) and California Radiological Society (CRS). He was the Chairman of the ACR Coding and Nomenclature Committee as well as Chairman of the ACR Regulatory Compliance Task Force. He also was President of the CRS, for which he still serves on the Executive Committee and as a Councilor to the ACR. He is a member of both the Radiological Society of North America(RSNA) and the American Roentgen Ray Society(ARRS) and regularly attends both of their national meetings. He is currently licensed in both California and Nevada.

 James Nassiri, MDMedical Director for Pain and Orthopedics

James Nassiri, MD |

Medical Director for Pain and Orthopedics

Board certified in anesthesiology, Dr. Nassiri completed a surgical internship at UCLA Medical Center, a post-doctorate fellowship in pain management at UCLA, and a residency in anesthesiology at Harbor UCLA Medical Center. While at Harbor UCLA, Dr. Nassiri was appointed the chief resident of the department of anesthesiology. Dr. Nassiri has published and spoken widely about pain conditions, including presentations at the American Society of Anesthesiologists and the American Society of Regional Anesthesia and Pain Medicine conferences and papers in the Anesthesiology News Journal. In 2011, Pasadena Magazine’s fourth annual “Top Doctors” issue named him one of the most esteemed physicians in anesthesiology in the San Gabriel Valley and Los Angeles areas.

Amin J. Mirhadi, MDMedical Director for Integrative Oncology

Amin J. Mirhadi, MD |

Medical Director for Integrative Oncology

Dr. Amin Mirhadi is a board-certified Radiation Oncologist, who currently serves as a Faculty Physician at Cedars-Sinai Medical Center, in the Department of Radiation Oncology and the the Samuel Oschin Cancer Center. His primary clinical and research interests include breast cancer, lung cancer, and brain tumors, with an emphasis on utilizing techniques which deliver minimal amounts of radiation to the surrounding normal tissue, such as Image Guided Radiosurgery, Optical Surface Tracking and various other motion management techniques. Dr. Mirhadi has published several articles in prestigious journals and has written 5 chapters for widely used textbooks. At Cedars-Sinai, Dr. Mirhadi has focused his research and departmental development efforts on enhanced localization techniques, an aspect of Radiation Oncology that allows for more precisely guided radiation therapy. He has also served as the medical director for oncology services for HealthHelp since 2012. During his tenure here, he is over seen the development and refinement of all of the cancer related programs including radiation oncology, medical oncology, cancer imaging and various surgical and biopsy programs. In addition, he has cultivated and developed a Virtual Tumor Board program which has been instrumental in providing a better connection between the provider community and review physicians and is the first of its kind in the area of cancer management.

Ulysses Magalang, MDMedical Director of Sleep

Ulysses Magalang, MD |

Medical Director of Sleep

Dr. Ulysses Magalang, MD is a practicing Pulmonary Disease and Sleep Medicine Specialist in Columbus, OH. He has been in practice for more than 22 years. Dr. Magalang is board-certified in Pulmonary, Critical Care, and Sleep Medicine. He has published more than 50 scholarly articles including original manuscripts in major journals in his field. Dr. Magalang has been actively involved in an international consortium of sleep medicine researchers- the Sleep Apnea Global Interdisciplinary Consortium (SAGIC), a collaborative group comprised of international experts in the field of sleep medicine.

HealthHelp Careers

HealthHelp Careers

We are always eager to expand the HealthHelp family and invite passionate and driven people to take advantage of available career opportunities.

Join The Team
Employee Of The Month

HealthHelp Employee of the Month

Because we believe each member of the HealthHelp family plays an invaluable part, we choose a dedicated employee to be featured on our social channels every month.

See Employee Recognition