Dr. Pieretti is a Pediatric Surgeon sub-specialized in Pediatric Urology with 40 years of experience. He was trained in General Pediatric Surgery and Pediatric Urology at the Hospital for Sick Children of Toronto (SickKids Hospital).


Pediatric Surgery


Centers & Specialties

Cancer Center

MassGeneral Hospital for Children

Clinical Interests
  • Inguino-scrotal pathology: undescended testicles, hernia, hydrocele, varicocele, testicular torsion
  • Hypospadias
  • Epispadias
  • Vesicoureteral reflux
  • Obstructive uropathies: Congenital hydronephrosis, megaureter, ureterocele, ectopic ureter
  • Tumors: Wilms? tumor, rhabdomyosarcoma (bladder and prostate)
  • Disorders of sex development
  • Bladder and cloacal exstrophy
  • Phimosis
  • Voiding dysfunction
  • Enuresis
  • Pediatric Urology
Medical Education
  • MD, Central University of Venezuela
  • Residency, Dr. Carlos Arvelo Military Hospital|Residency, Toronto Hospital for Sick Children
Foreign Languages
  • Spanish
  • Boston: Massachusetts General Hospital
  • Newton: Newton-Wellesley Hospital
Existing Patients
Patient Gateway
Insurances Accepted
  • Aetna Health Inc.
  • AllWays Health (NHP) - ACD
  • AllWays Health (NHP) - PBO
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • BMC HealthNet Mass Health MCO/ACO
  • Cigna (PAL #'s)
  • Commonwealth Care Alliance
  • Fallon Community HealthCare
  • Great-West Healthcare (formally One Health Plan)
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • MassHealth
  • Medicare
  • Medicare - ACD
  • OSW - Maine
  • OSW - New Hampshire
  • OSW - Rhode Island
  • OSW - Vermont
  • Private Health Care Systems (PHCS)
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO
  • Well Sense Pediatrics

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.

Patient Age Group
Provider Gender


Dr. Pieretti has 40 years of experience in pediatric urology and pediatric surgery. He is board certified in general surgery and pediatric surgery by the Royal College of Physicians and Surgeons of Canada. He did a fellowship in pediatric urology at Sick Kids Hospital, Toronto, Canada (1973-1974).

During  his  29 years of practice  in Caracas, Venezuela, Dr. Pieretti devoted most of his time and efforts to pediatric urology where he founded 3 services of pediatric surgery and urology.  Thirteen years ago he was recruited by  Massachusetts General Hospital and since then he has devoted 100% of his time to  the broad clinical spectrum of pediatric urology. 

He uses his background in pediatric urology and pediatric surgery to perform complex reconstructive procedures.

Research & Publications

Research Summary

Dr. Pieretti's main area of research interest is in the field of  Pediatric Urology. He has ongoing clinical research work in the surgical treatment of  hypospadias, congenital hydronephrosis,  and undescended testicles. At the present time he has a total of 5 ongoing clinical research projects. He has published a total  of 41 papers and is the author of 3  book chapters on the surgical treatment of Disorders of Sexual Differentation.


View my most recent publications at PubMed

Congenital bladder diverticula in children. Pieretti RV, Pieretti-Vanmarcke RV. J Pediatr Surg. 1999 Mar;34(3):468-73.

The mild end of the clinical spectrum of posterior urethral valves. Pieretti RV. J Pediatr Surg. 1993 May;28(5):701-4; discussion 704-6

Management of recurrent  or overlooked rectourethral fistula and urethral injury resulting from treatment of imperforate anus. Pediatric Surgery International 1993: 8:438-440

Circumcised hypospadias. Pieretti RV, Pieretti A, Pieretti-Vanmarcke R. Pediatr Surg Int. 2009 Jan;25(1):53-5. Epub 2008 Oct 11.

Late complications of newborn circumcision: a common and avoidable problem. Pieretti RV, Goldstein AM, Pieretti-Vanmarcke R. Pediatr Surg Int. 2010 May;26(5):515-8. Epub 2010 Feb 14.

Differential kidney scan in pediatric urology. Pieretti R, Gilday D, Jeffs R. Urology. 1974 Dec;4(6):665-8. No abstract available.

Symphysiotomy: a valuable approach in Children with Prostate Rhabdomysarcoma. Pediatric  Surgery International  (2010) 26:341-343

News & Events

  • Charlie's Story: Instilling Confidence Through a High Standard of Care

    Charlie Beecher's family described the first two years of his life as joyously normal until Charlie developed belly pain. When they found out it was cancer, the Beechers brought Charlie to the Francis H. Burr Proton Therapy Center, which helped Charlie return to his normal, happy childhood.


Pediatric Urology
55 Fruit Street
Boston, MA 02114-2696
Phone: 617-724-0518
Fax: 617-726-2167