The data clinicians generate powers the entire healthcare industry.
Yet they're the last to see it.
For decades, every prescription, referral, and patient encounter has flowed outward — to payers, to pharma, to policy. Jiro was built to send it back.
Our mission
We’re building a future where every clinician has access to the same level of intelligence historically reserved for the rest of the healthcare system.
Clinicians deserve better than quarterly reports, population-level benchmarks, and dashboards built for administrators. Jiro is the practice intelligence layer you've been missing.
Meet our executive team
Built by proven healthcare operators and clinicians with deep expertise in AI and real-world data.
Greg Field
Chief Executive Officer
Mike DiNorscio
Chief Revenue Officer
Geeta Nayyar, MD
Chief Medical Officer
Matt Falcone
Chief Client Officer
Sergei Rudakov
Chief Technology Officer
Greg Field
Chief Executive Officer, Jiro Health
Greg Field is an entrepreneur, investor and healthcare technology executive who has founded, scaled and exited high-growth businesses at the intersection of healthcare, data and artificial intelligence. He is the Founder and CEO of Jiro Health, a practice intelligence platform that uses real-world data to help clinicians make more informed clinical and operational decisions.
Building and Scaling Healthcare Technology Businesses
Prior to founding Jiro Health, Greg co-founded Lasso, an omnichannel healthcare marketing and analytics platform that became a system of record for healthcare marketing in the United States. Under his leadership, the company grew by more than 860% before being acquired by IQVIA, a Fortune 500 healthcare analytics leader, in a transaction valued at approximately $450 million. Following the acquisition, Greg served as Vice President and General Manager at IQVIA, helping to drive innovation across the sector.
Early Career in Healthcare Data and Technology
Earlier in his career, Greg worked in healthcare data analytics at Crossix and held product, engineering and client leadership roles at AppNexus, where he advised major enterprise clients on technology strategy and managed large-scale commercial engagements.
Education and Academic Background
He holds an A.B. from Princeton University in Philosophy, Computer Science and European Cultural Studies.
Investor, Advisor and Board Member
Today, Greg is an active angel investor, advisor and board member to early-stage healthcare and technology companies. He has been recognised for his contributions to the industry through honours including MM+M's 40 Under 40. Beyond technology, he is also an investor in film and theatre, supporting feature film projects through Prospect and Broadway and West End productions including Maybe Happy Ending, winner of the 2025 Tony Award for Best Musical, and Two Strangers (Carry a Cake Across New York). He also supports philanthropic initiatives focused on education, youth development and community impact.
Innovation shaped by the front line
Our physician advisory board ensures everything we build reflects the realities of daily practice, making it easier for clinicians to care for patients and manage a thriving practice.
Critical Care
Pat Herlihy,MD
Chief of Critical Care, Baylor St. Lukes
General & Trauma Surgery
Rafael Grossmann,MD, FACS
Trauma & Acute Care Surgeon, Portsmouth Regional Hospital
Gastroenterology
Matthew Fasullo,DO
Gastroenterologist, Richmond Gastroenterology Assoc.
Dermatology
Steven Feldman,MD, PhD
Professor of Dermatology, Wake Forest University School of Medicine
Cardiology
Matt Budoff,MD
Endowed Chair of Preventive Cardiology, UCLA
Neurology
Steven Bondi,MD
Neurologist, Hartford Neurology
Emergency Medicine
Kristina Field,MD
Emergency Medicine, Sutter Health
Infectious Disease
Roy Chemaly,MD, MPH
Professor and Chair of Infectious Diseases, MD Anderson
Internal Medicine
Alpesh Amin,MD, MBA
Hospital Medicine, UC Irvine School of Medicine
Orthopedic Surgery
Greg Angelides,MD
Orthopedic Surgery, Washington University St. Louis
Cardiology
Colby Salerno,DO
Advanced Heart Failure & Transplant, Baystate Health
Hematology & Oncology
Shaji Kumar,MD
Mullins Professor of Hematological Malignancies, Mayo Clinic
Urology
George Haleblian,MD
Director of Endourology, Brigham and Women's Hospital
Oncology
Michael Manasia,DNP, RN, OCN
Nurse Leader of Ambulatory GU, Memorial Sloan Kettering
Pathology
Ankur Sangoi,MD
Director of Genitourinary Pathology, Stanford Medicine
Vascular Surgery
David Whittaker,MD, RPVI
Vascular Surgeon, The Greenbrier Clinic
Emergency Medicine
Nikhil Illa,MD
Emergency Medicine Physician, Penn Medicine
Pediatrics
Seth Roncoroni,MD
Pediatrician, NYC Health + Hospitals/Harlem
Pediatric Emergency Medicine
Terry Adirim,MD, MPH, MBA
Physician Executive and Chief Medical Officer
Cardiology
Sumit Kumar,MD, MPA
Chief Cardiology Fellow, Dartmouth Hitchcock Medical Center
Pediatrics
Ryan Sadeghian,MD, MBA
General Pediatrician & Chief AI Officer
Otolaryngology
Luis Cortina,MD
Head & Neck Surgery Resident, University of Washington
Ophthalmology
Eric Mann,MD
Ophthalmologist and Anterior Segment Surgeon, Eye Associates of North Jersey
Obstetrics and Gynecology
Mary Angelides,MD
Maternal-Fetal Medicine Fellow, Mercy Hospital St. Louis
Hospital Medicine
Verity Schaye,MD, MHPE
Hospitalist & Assistant Dean, NYU Grossman School of Medicine
Oncology
Erin Bange,MD, MSCE
Genitourinary Medical Oncologist, Memorial Sloan Kettering
Internal Medicine
Samer Blackmon,MD
Co-Founder & Internist, Acorn to Oak Health (Piedmont Clinic)
Pharmacy
Alec Ginsberg,PharmD
Chief Operating Officer, C.O. Bigelow Apothecaries
Pharmacy
Timothy Fensky,RPh, DPh, FACA
Principal Consultant, Pharmacy Insights
Psychiatry
Luis Torres,MD
Psychiatrist & Medical Engagement Lead Director, Bristol Myers Squibb
Psychiatry
Liz Troung,MD
Psychiatrist & Clinical Product Manager, Jiro
Neurology
Liora Rodill,MD
Neurologist & VP of Intelligence Products, Jiro
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