John G. Nackel, Chairman and CEO of Three-Sixty, is a leading authority in the health care industry.  For 25 years John served in numerous leadership positions with Ernst & Young (now EY) and CapGemini.  He was Global Managing Director of EY’s Health Care Consulting business, Managing Director of New Ventures, and CEO of Sogeti North America (the professional services arm of CapGemini).  John also served as CEO of Ingenix Consulting (now Optum) a United Health Group company.


John founded Three-Sixty to: 1) assist health care payers, providers and physicians to design, build and operate sustainable health enterprises; and 2) assist early stage health care businesses in biotech, medical devices and health care services by assisting them with growth, performance and capital needs.  John serves on the board of directors of several private and public companies, including the Ensign Group, Inc. (NASDAQ:ENSG), which provides skilled nursing, assisted living, home health and rehabilitative services through the operation of more than 120 facilities in the western United States.


John earned his bachelor’s degree in Mathematics and Economics at Tufts University and Masters Degrees in Public Health and Industrial Engineering at the University of Missouri.  Also, he earned his Ph.D. in Industrial Engineering at the University of Missouri.  He is a Fellow of the American College of Healthcare Executives (FACHE) and the Healthcare Information and Management Systems Society (FHIMSS).  He is a Senior Member of the Institute of Industrial Engineers (IIE). He has written over 50 books, chapters and articles on topics ranging from performance improvement, entrepreneurship, and leadership.  John also teaches at the University of California San Diego (UCSD) a course in Health Care Operations.


Favorite Quote:  "Create a great team and you create a great company." Jack Welch, Former CEO GE

E: | M: (213) 716-7771 | O: (626) 229-0360


Chairman & CEO

Jay Goss, Managing Director of Three-Sixty, has made a career of working with early stage companies, in both consulting and operating roles (CEO, President, COO, GM, SVP).  Hired by the founders and Boards of young companies (typically pre-Seed stage through Series B), he works directly with them developing and executing go-to-market strategies, and essentially getting the business from proverbial first base to second.  Jay also has worked "intrapreneurially" inside large/mature companies, developing new lines of business on their behalf, including The Walt Disney Company and Reed Elsevier.  He has significant sales, marketing, operations, product development and finance experience (routinely wearing the CFO hat for these companies), as well as working with them to raise capital from angels, celebrities, venture capital firms and strategic investors.


Jay’s recent experiences include running healthcare technology company RxVantage (backed by Javelin Ventures, Wavemaker and Slater Technology Fund) as its CEO; commercializing WellCaster (mobile tech company in the training industry) as its President; launching healthcare marketplace company Kumba Health as its COO; turn-around work with technology companies EternalSpace as its President and exactly, inc. as its CEO; commercializing virtual world company Numedeon as its COO; and running sales and marketing for mobile video company Mogreet (backed by DFJ-Frontier, Ascend, Spyglass and Black Diamond) as its SVP.  A number of companies Jay has worked with have had exits in the form of acquisition and joint venture.


Jay earned his bachelor’s degree in Economics & Business from UCLA, and MBA from USC’s Marshall School of Business.


Favorite Quote:  “Failure is not fatal, but failure to change might be.”  John Wooden, UCLA Basketball Coach 


E: | M: (818) 298-7259 | O: (626) 229-0360

Managing Director

Eric N. Marton has more than 25 years experience starting, growing, leading and advising organizations in healthcare and beyond. Eric is a Managing Director at Three-Sixty Advisory Group and a Venture Partner at its sister company, Wavemaker 360 Health – a venture capital firm focused on innovations that drive value-base care.

In early 2016, Eric was recruited by the private equity firm BlueMountain Capital to serve as Chief Strategy Officer of their newly acquired Verity Health (formerly the Daughters of Charity) – a $1.5 billion health system with six hospital campuses, more than 2000 affiliated physicians, and numerous ambulatory centers throughout northern and southern California. Concurrently, Eric was CEO of the Verity Medical Foundation (a physician organization with ~500 MDs) and CEO of the Verity subsidiary, Surgical Partners of California (an ASC management company with 12 centers).  After a substantive turnaround of the health system, Eric worked closely with BlueMountain and NantWorks (led by Dr. Patrick Soon Shiong) to facilitate NantWorks’ acquisition of Verity and to launch innovative clinical programs in a number of subspecialty areas.

Prior to joining Verity, Eric served as an executive director at Cedars-Sinai Health System, where he led efforts to craft a new Institute-model for specialty care, starting with the creation of the Cedars-Sinai Heart Institute. That entity became the largest and most highly ranked heart center in the Western United States with >$500 million in net revenue for FY16 (his final year there). While at Cedars-Sinai, Eric also worked with the Cedars-Sinai Medical Care Foundation to expand its scope to include all medical subspecialties and to become the primary vehicle for physician engagement at the health system.

Eric’s experience includes managed care/payor contract negotiation for the University of California at its San Francisco and Los Angeles campuses. Eric was also the head of international contracting for UCLA Health. Aside from his work with large health systems, Eric has served as a member of the Board of Directors for numerous companies and as a consultant to healthcare and VC/private equity organizations.  From 1999 to 2005, Eric served as Managing Partner of Catalyst Venture Group. In this capacity, Eric was responsible for a portfolio of healthcare, technology, public-private partnership, and infrastructure investments in the US and around the world.

Among other community activities, Eric is a frequent guest lecturer for the schools of business, medicine, and public policy at the University of California Los Angeles and at the University of Southern California. This past year, Eric also gave talks at the California-Israel Medical Technology Summit at Oracle Corp. and at the Precision Medicine World Conference in Silicon Valley.

Favorite Quote: “It’s not about ideas. It’s about making ideas happen.”  Scott Belsky


E: | M: (310) 951-3636 

Managing Director

E: | M: (310) 795-8241 | 

Tina leads Three-Sixty's South & East healthcare business and is a Managing Director with the firm.  Tina is also serving as a Venture Partner with Wavemaker Three-Sixty Health, LP., a venture fund focused on early stage Healthcare companies. 


Prior to joining Three-Sixty, Tina led Chartis’ Innovation Group, focused on driving new business models for the Healthcare Industry.  She was the Global HealthCare Leader and the Head of Strategy for North Highland and partner in Accenture’s Strategy practice. 

Tina specializes in complex strategic engagements with a focus on customer experience, margin improvement, growth and transformation. She assists with facilitation of strategic conversations with C-level and board executives to achieve desired objectives and decision making.  Tina helps clients establish new ventures and assists with start up of new products and business lines.


Tina has a diverse strategic consulting background with experience in several industries, including healthcare, retail, public sector, communications, and high-tech industries and products. 


Ms. Modi holds a BS degree in Chemical Engineering from Washington University in St. Louis, and an MBA from the University of Texas at Austin.

Favorite quote:  "Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has." Margaret Mead

Tina Modi
Managing DIrector

E: | M: (770) 335-4383 

Susan is a Managing Director with the firm and is focused on innovative human resource (HR) strategies/solutions to help emerging and mature healthcare organizations keep on a positive trajectory by implementing new approaches to keep employees and physicians connected, aligned and engaged.  

Prior to joining Three-Sixty Advisory Group, Susan served as Managing Director at Gallagher and led the development and implementation of a physician engagement offering to mitigate the crescendo of already concerning burnout and disengagement levels. The offering was entitled “Becoming the Physician’s Organization of Choice”.  Susan has more than 25 years of experience partnering across healthcare organizations to improve key metric by overcoming a myriad of issues related to engagement, productivity, recruiting, retention and patient experience from the C suite to the front line.

In addition, Susan was a Principal in the strategy and consulting division of the largest group purchasing organization (GPO), Vizient/Sg2 and a Partner at Mercer leading the physician compensation and alignment practices. She had her own firm focused on HR strategy and physician alignment and was involved in senior consulting roles at E&Y and Willis Towers.  She speaks nationally, leads webinars and authors articles on her consulting topics.


She has a BA in Business and MBA with a concentration in Finance from Rollins College in Winter Park, Florida. Susan serves as an advisor to AHA’s Physician Alliance and is an active member of the Ignite Healthcare Network.

Favorite quote:  “First get the right people on the bus, the wrong people off the bus, and the right people in the right seats-and then they figured out where to drive it" - Jim Collins, Good to Great

Susan Quirk

Managing Director

Contact Three-Sixty


T: (626) 229-0360


Home Office

301 North Lake Avenue

Suite 900A

Pasadena, CA 91101 

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