Quick question: I want/plan to be an OB/GYN specializing in perinatology but I've realized after shadowing I am also interested in surgery (I was shadowing an orthopedic surgeon but) specifically pediatric surgery. Is it possible? How much training (after medical school) am I looking at? When I am training, would I train for both at the same time or separately?
What particular two residencies do you want to do? To answer the thread title, yes there are people who have completed both internal medicine and surgery (I would love to do so, if I lived to 150 and could be excellent at both and find a way in which having mastery of both specialties would be useful to the patient), but they are typically internists who then decided to practice surgery and currently stick to surgery. They're guys like this guy:
http://www.surgery.medsch.ucla.edu/doctors/doctors_Ardehali.shtml
Institution Level (Intern,
Resident, Fellow) Department Year
University of California, Los Angeles Chief Resident Cardiothoracic Surgery 1995-97
University of California, Los Angeles Chief Resident Surgery 1994-95
University of California, Los Angeles Resident Surgery 1991-94
University of California, Los Angeles Intern Surgery 1990-91
University of California, San Francisco Resident Department of Medicine 1987-89
University of California, San Francisco Intern Department of Medicine 1986-87
There are also people in other fields who feel that having IM in addition to their main specialty is helpful. They're anesthesiologists, neurologists, dermatologists, and such who complete IM residencies as well. Derm has a combined IM/derm residency. E.g. the head of anesthesia at Harvard:
http://www.massgeneral.org/doctors/doctor.aspx?id=17681
Medical EducationMD, University of California San Francisco School of MedicineResidency, Mount Zion Hospital & Medical CenterResidency, University of California San FranciscoFellowship, University of California San Francisco
Board CertificationsAnesthesiology, American Board of AnesthesiologyInternal Medicine, American Board of Internal MedicinePulmonary Disease, American Board of Internal Medicine
By and large, you'll not be doing this and it just isn't practical.
To answer you secondary questions, pediatric surgery involves a 7 year general surgery residency (of which 2 years are research) followed by an extremely competitive 2 year pediatric fellowship. I doubt that IM would be of ANY use in that career track. A pediatrics residency might have some benefit, but why would you want to go from 9 to
12 years of training for very marginal benefit?
Finally, most mainstream in utero fetal procedures are done by ob/gyn doctors. There are some more complex procedures being done by pediatric general surgeons or perhaps pediatric neurosurgeons, but they are few and far between and would likely require intense collaboration with MFM and neonatology. For instance Dr. Adzick at CHOP, who does spina bifida surgery on fetuses:
http://www.chop.edu/doctors/adzick-n-scott.html