
Christopher Castiglione
Adjunct Assistant Professor of Business, Decision, Risk, and Operations Division

Christopher Castiglione
Adjunct Assistant Professor of Business, Decision, Risk, and Operations Division

Raymond Falci
Adjunct Associate Professor of Business, Decision, Risk, and Operations Division
Raymond G. Falci currently serves on several healthcare boards and is an adjunct professor at Columbia Business School, having previously worked on Wall Street for 20+ years. Mr. Falci was a Managing Director at Cain Brothers from 2006 to 2016, serving on the Executive Committee and co-heading the firm’s Services & Technology practice. Ray’s banking focus included Healthcare IT and Revenue Cycle Management as well as healthcare distribution, specialty pharmacy and PBMs. Prior to joining Cain Brothers, Mr.

Mattan Griffel
Adjunct Assistant Professor of Business, Decision, Risk, and Operations Division
Mattan Griffel is a recipient of the Dean's Award for Teaching Excellence. Mattan is a two-time Y Combinator-backed entrepreneur and the Co-Founder of Ophelia, a company that helps people quit opioids without having to go to rehab.

Sunny Israni
Adjunct Assistant Professor of Business, Decision, Risk, and Operations Division

Hardeep Johar
Adjunct
Senior Lecturer in Discipline, Decision, Risk, and Operations Division
Hardeep Johar received an M.A. in Economics from the Birla Institute of Technology and Science and is a Fellow of the Indian Institute of Management Calcutta. He received a Ph.D. in Information Systems from the Stern School of Business, New York University in 1994. Prior to joining Columbia, Johar has worked as a quantitative trader at Morgan Stanley, Credit Suisse and Deutsche Bank, at a tech startup (MSpoke), and has taught at NYU Stern School of Business and the Gabelli School of Business Fordham University.

David Juran
Senior Lecturer in Business, Decision, Risk, and Operations Division
David Juran teaches courses in Managerial Statistics, Decision Models, and Applied Regression Analysis. He is a winner of the Robert W. Lear Service Award, the Margaret Chandler Memorial Award for Commitment to Excellence, and the Dean's Award for Teaching Excellence in a Core Course. His research on the modeling of human factors in productive systems and the management of quality has appeared in Management Science, Journal of Operations Management, and other journals.

Kriste Krstovski
Adjunct Assistant Professor, Decision, Risk, and Operations Division
Kriste Krstovski is an adjunct assistant professor at the Columbia Business School and an associate research scientist at the Data Science Institute. Previously he was a postdoctoral research scientist working with David Blei at Columbia University and John Lafferty at Yale University.

Jared Lander
Adjunct Assistant Professor, Decision, Risk, and Operations Division
Jared P. Lander is the Chief Data Scientist of Lander Analytics, a data science and artificial intelligence consulting and training firm based in New York City; the organizer of the New York Open Statistical Programming Meetup, and the R Conferences in New York, Washington DC and Dublin); author of R for Everyone. With an M.A.

Brett Martin
Adjunct Assistant Professor of Business, Decision, Risk, and Operations Division
Brett Martin is co-Founder and Managing Partner of Charge Ventures, a pre-seed focused venture fund based in Brooklyn, NY. He also serves as an Adjunct Professor at Columbia Business School.

Ezra Mehlman
Associate in Business, Decision, Risk, and Operations Division
Ezra Mehlman is a General Partner at Health Enterprise Partners L.P, a lower middle market growth equity firm focused on healthcare IT and services. Prior to completing his MBA at Columbia Business School and joining HEP in 2010, Ezra was a Senior Analyst at the Advisory Board Company (NASDAQ: ABCO), providing best-practice consulting and research services to hospitals and health systems. After leaving the Advisory Board Company, Ezra served as a Senior Consultant in the health care practice of Booz Allen Hamilton focusing on engagements in the provider space.

Kyle Owens
Adjunct Assistant Professor of Business, Decision, Risk, and Operations Division

Evan Picoult
Adjunct Professor of Business, Decision, Risk, and Operations Division
Professor Picoult teaches the Risk Management course, which is currently offered in a joint Master of Science degree program of the DRO department of the Business School and the IEOR department of the School of Engineering and Science. In 2018 Picoult retired as managing director of Citi, where he had worked for 38 years. He had been the head of Citi’s Economic Capital and Stress Testing Methodology unit and served on a number of firm-wide risk governance committees.

Angela Quintero
Managing Director, W. Edwards Deming Center
Adjunct Assistant Professor, Decision, Risk, and Operations Division

Angela Quintero
Managing Director, W. Edwards Deming Center
Adjunct Assistant Professor, Decision, Risk, and Operations Division
Angela Quintero is the Managing Director in the W. Edwards Deming Center for Quality, Productivity, and Competitiveness. The center promotes operational excellence in business through the development of research, best practices, and strategic planning by sponsoring applied research, focused education and professional development initiatives, disseminating best practices, and fostering partnerships with companies in the area of operational excellence.

Neha Shah
Adjunct Associate Professor of Business, Decision, Risk, and Operations Division

Harborne Stuart
Adjunct Professor of Business, Decision, Risk, and Operations Division
Professor Stuart teaches Managerial Negotiations and Game-theoretic Business Strategy. His research focuses on the development of business theory using game-theoretic approaches. It includes the further development of "value-based strategy," which studies businesses as the central players in economic value creation, and “interactive decision theory,” which takes strategic uncertainty as the primary focus of strategic interaction. Application of the research is principally to the fields of strategy, negotiation, and operations.

David Tamburri
Lecturer in Continuing Education, Lecturer in Business, Decision, Risk, and Operations Division

David Tamburri
Lecturer in Continuing Education, Lecturer in Business, Decision, Risk, and Operations Division
Dave Tamburri is a Managing Partner of Health Enterprise Partners, L.P. Prior to joining HEP in 2009, Dave was a Vice President for Susquehanna Growth Equity, a private equity group focused on growth stage technology companies. He was formerly the President and Chief Operating Officer of Onward Healthcare, Inc., a Welsh, Carson, Anderson & Stowe portfolio company. Prior to Onward, Dave was an Executive Vice President of Pinnacor, Inc., a General Atlantic portfolio company, which went public.

Halle Tecco
Adjunct Assistant Professor of Business, Decision, Risk, and Operations Division
Halle Tecco is a Founder & Managing Director at Rock Health, a research organization and seed fund focused on digital health. She is also an active angel investor in over 50 technology companies. Tecco has appeared in The New York Times, The Wall Street Journal, and CNBC. She was named as one of Goldman Sachs’s Most Intriguing Entrepreneurs and listed on the Forbes 30 under 30. She has spoken at the Aspen Ideas Festival, CES, SXSW, TechCrunch Disrupt, and has guest lectured at Harvard, Stanford, and Wharton.

Peter Tollman
Executive in Residence, Executives in Residence Program
Adjunct Assistant Professor of Business, Decision, Risk, and Operations Division

Peter Tollman
Executive in Residence, Executives in Residence Program
Adjunct Assistant Professor of Business, Decision, Risk, and Operations Division
Peter Tollman is Senior Partner Emeritus at Boston Consulting Group. He's also Senior Advisor to the firm and, previously, was Managing Director and Senior Partner in the firm's Boston office. He led BCG's CEO Advisory Practice globally, served as global leader of BCG’s Biopharmaceutical Practice, and led its People and Organization Practice in the Americas. He was also a BCG Fellow, a prestigious thought-leadership post.