| Role | Organization | Time |
|---|
| Member | British Association of Paediatric Surgery | Present |
| Member | Canadian Association of Pediatric Surgery (honorary member) | Present |
| Member | International Fetal Medicine and Surgery Society | Present |
| Member | Pacific Association of Pediatric Surgeons | Present |
| Member | Wound Healing Society | Present |
| Member | Chilean Society of Obstetrics and Gynecology (honorary member) | Present |
| Member | North American Fetal Therapy Network | Present |
| Member | American Academy of Pediatrics, Surgical Section | Present |
| Member | American Association for the Advancement of Science | Present |
| Member | American College of Physician Executives | Present |
| Fellow | American College of Surgeons | Present |
| Member | American Medical Association | Present |
| Member | American Pediatric Surgical Association | Present |
| Member | American Surgical Association | Present |
| Member | Association for Academic Surgery | Present |
| Member | Association of Pediatric Surgery Training Program Directors | Present |
| Member | Children's Cancer Study Group | Present |
| Member | Institute of Medicine, National Academy of Sciences | Present |
| Member | March of Dimes | Present |
| Member | MGH Surgical Alumni Society | Present |
| Member | Society of Critical Care Medicine | Present |
| Member | Society of University Surgeons | Present |
| Distinction | Institution | Year |
|---|
| March of Dimes | Keystone Award | 2012 |
| Audrey Evans Award of Excellence, Ronald McDonald House | 2011 |
| Chai Lifeline | Community Service Award | 2011 |
| President-at-Large, International Fetal Medicine and Surgery Society | 2011-2015 |
| Nobel Forum Lecturer, Karolinska Institute, Stockholm, Sweden | 2005 |
| American Association for the Advancement of Science | Fellow | 2003 |
| Elected into the International Order of the Smile | 2002 |
| Person of the Year, Southeastern Pennsylvania Chapter, March of Dimes | 2001 |
| President, International Fetal Medicine and Surgery Society | 2000 |
| Presidential Cross for Contributions to the Republic of Poland | 1999 |
| Institute of Medicine, National Academy of Sciences | 1998 |
| Australia and New Zealand Chapter, American College of Surgeons Trave | 1998 |
| | University of Pennsylvania Medical Student Teaching Award | 1996 |
| Honorary Master of Arts Degree, | University of Pennsylvania | 1995 |
| | University of California- San Francisco Surgical Residents' Teaching A | 1993 |
| American Association of Plastic Surgeons | Honorary Award | 1992 |
| National Kidney Foundation Fellowship | 1990-1992 |
| American College of Surgeons Fellowship | 1989-1991 |
| Schering Scholarship, American College of Surgeons | 1986-1987 |
| Young Investigators Award, Surgical Section, AAP | First Place | 1984 |
| National Institute of Health | National Research Service Award | 1983-1985 |
| Massachusetts General Hospital | Marshall K. Bartlett Fellowship | 1983-1984 |
| American College of Surgeons Scholarship | 1983-1985 |
| Richard C. Cabot Prize, Harvard Medical School | 1979 |
| Phi Beta Kappa | 1975 |
| Harvard National Scholar | 1975 |
| Philadelphia Super Doctors | 2012 |
| Philadelphia Magazine's Top Docs | 2010-2012 |
