This is the match list for the class of 2011, the list is available on the school's webpage, but i'll post it here anyway. The match is dependent on individual factors, but definitely the fact that PSM is the better known PR medical school (together with UPR) in mainland US definitely helps.
Anesthesiology = Cleveland Clinic Foundation, OH
Dermatology = Univ. of South Florida COM, Tampa; Univ. of Puerto Rico
Emergency Medicine = Univ. of Florida COM, Jacksonville; Univ. of Connecticut Health Center, Boston; Univ. of Medical Center, MA; San Lukes Episcopal Hospital, PR
Family Medicine = Good Samaritan Penn State; Ball Memorial Hosp., IN; Lehigh Valley Hosp., PA; Jackson Memorial Hosp., FL; Northridge Hosp. Medical Center, CA
Internal Medicine = Univ. of Massachus- setts Medical School; Ohio State Univ medical Center., OH; Ochsner Clinic Foundation, LA. San Juan VA Medical Center., PR; Damas Hospital, PR; Univ. of Connecticut Health Center.; Texas Tech Univ. Affiliate El Paso, TX; Orlando Health, FL; Univ. of South Florida COM, Tampa; Virginia Commonwealth Univ. Health System
Neurology = Emory Univ SOM, GA
Obstetrics-Gynecology = Univ. of Puerto Rico; Western Pennsylvania Hosp.; Lehigh Valley Hosp., PA; Washington Hospital Center, DC; Nassau Univ. Medical Center, NY
Ophthalmology = UMDNJ, New Jersey, MS
Pediatrics = St. Christophers Hosp., PA; Univ. of South Florida COM, Tampa; San Lukes Hospital, PR
General Surgery = St. Lukes-Bethlehem, PA
PGY1 preliminary in General Surgery = Duke University; PennState Hershey; Milton S. Hershey Medical Center.; York Hospital, PA; UPMC Mercy, Pittsburg, PA; University of Texas, Southwestern Medical Center at Dallas
Orthopeadic Surgery = UMDNJ-New Jersey Medical, Newark
Urology = Univ. of PR, San Juan
Radiology Diagnostic = Univ. of Puerto Rico
Transitional = San Lukes Episcopal Hosp., PR; Damas Hospital,PR
Research-One Year = Univ. of Puerto Rico, Univ of New Mexico, Univ of Minnesota