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Douglas Middleton (Doug) Dahl, MD

Chief, Division of Urologic Oncology

Associate Urologist

Douglas M. Dahl, MD, FACS, is the Chief of Urologic Oncology and a urologic surgeon in the Massachusetts General Hospital Department of Urology. He specializes in the treatment of cancer, minimally invasive surgery, and related research.

  • Phone: 617-726-0875
Department of Urology


  • Cancer Center
  • Prostate Cancer
  • Testicular Cancer
  • Genitourinary Oncology
  • Kidney Cancer
Clinical Interests
Prostate cancer
Kidney cancer
Testicular, penile and genito-urinary cancers
Laparoscopic surgery
Robotic surgery
Brachytherapy (radioactive seeds)
Boston: Massachusetts General Hospital
Medical Education
MD, Yale University School of Medicine
Residency, Brigham and Women's Hospital
Board Certifications
Urology, American Board of Urology
Patient Gateway
Yes, learn more
Patient Age Group
Accepting New Patients
Accepting New Patients


Dr. Dahl graduated from Princeton University with honors where he majored in molecular biology. His thesis project was to study genes related to the development of cancer. He then attended medical school at Yale University, where he graduated in the top 10% of his class as recognized by the AOA honor medical society. His internship and residency training were at Harvard. He spent two years in general surgery training at the Brigham and Women's hospital, Boston Children's hospital, and West Roxbury V.A. hospital. He then completed four years of training in Urology in the Harvard Longwood Areaa program in Urology. This program included training at the above mentioned hospitals and the Beth Israel Hospital of Boston. He served as a research fellow at the Dana Farber Cancer Institute where he studied the genetics of prostate cancer. He then moved to the University of Massachusetts Medical Center where he was the head of urologic laparoscopic surgery. It was there that many firsts in New England took place: The first laparoscopic kidney donor surgery for transplant, and the first laparoscopic radical prostatectomy surgery.

In 2001, he was recruited to start the program in laparoscopic and minimally invasive surgery at Massachusetts General Hospital. His contributions have been recognized by the hospital where he serves as Director of Robotic Surgery and Chief of the Division of Urologic Oncology. He has also been honored by Harvard Medical School with the title of Associate Professor of Surgery.


Dr. Dahl's current research focus is in two areas: novel techniques and technologies for minimally invasive Urologic surgery and clinical trials in Urologic oncology. He developed techniques in laparoscopic radical prostatectomy and laparoscopic partial nephrectomy that are now in clinical use. He has published novel techniques in renal transplant and renal surgery, laparoscopic radical prostatectomy, and laparoscopic hernia repair, and has overseen the design and engineering of devices for improving laparoscopic surgery. He has worked with several of the major equipment makers in developing and testing new equipment for minimally invasive surgery.

Dr. Dahl's current area of oncology research interest is in clinical trials in multimodality treatment of urologic malignancies. He served as an investigator for several national studies in treatment of bladder cancer, salvage surgery for radio-resistant prostate cancer, and a prostate cancer prevention trial. He served on the Human Subjects Committee charged with review and approval of all clinical investigations. His current role at Harvard and the Massachusetts General Hospital, includes serving as the co-Principal Investigator of one of five sections of the Harvard SPORE grant studying renal cell carcinoma serum and tissue markers. He is the national Urology chair for two national studies under the auspices of the RTOG (Radiation Therapy Oncology Group).


View my most recent publications at PubMed

  1. Transperitoneal laparoscopic radical prostatectomy in patients after laparoscopic prosthetic mesh inguinal herniorrhaphy. Brown JA, Dahl DM. Urology. 2004 Feb;63(2):380-2.
  2. Laparoscopic radical prostatectomy and body mass index: an assessment of 151 sequential cases. Brown JA, Rodin DM, Lee B, Dahl DM. J Urol. 2005 Feb;173(2):442-5.
  3. Isolation and characterization of circulating tumor cells from patients with localized and metastatic prostate cancer. Stott SL,et al, Dahl DM, Wu CL,et al Sci Transl Med. 2010 Mar 31;2(25):25ra23.
  4. A prospective study of symptom distress and return to baseline function after open versus laparoscopic radical prostatectomy. Dahl DM, Barry MJ, McGovern FJ, Chang Y, Walker-Corkery E, McDougal WS.J Urol. 2009 Sep;182(3):956-65. Epub 2009 Jul 17.
  5. Lymphotropic nanoparticle-enhanced magnetic resonance imaging (LNMRI) identifies occult lymph node metastases in prostate cancer patients prior to salvage radiation therapy. Ross RW, Zietman AL, Xie W, Coen JJ, Dahl DM, Shipley WU, et al.M.Clin Imaging. 2009 Jul-Aug;33(4):301-5.
  6. Laparoscopic inguinal hernia repair during laparoscopic radical prostatectomy. Lee BC, Rodin DM, Shah KK, Dahl DM. BJU Int. 2007 Mar;99(3):637-9.
  7. The results of concurrent chemo-radiotherapy for recurrence after treatment with bacillus Calmette-Gu?rin for non-muscle-invasive bladder cancer: is immediate cystectomy always necessary? Wo JY, Shipley WU, Dahl DM, Coen JJ, Heney NM, Kaufman DS, Zietman AL. BJU Int. 2009 Jul;104(2):179-83. Epub 2008 Dec 23.

Cystectomy: A patient education video

What to expect during admission for a cystectomy procedure. A cystectomy is a surgical procedure to removal all or part of the urinary bladder.

Nephrectomy: A patient education video

What to expect during admission for a nephrectomy procedure. A nephrectomy is a surgical procedure to remove all or part of the kidney. Surgery may involve one or both kidneys.

Prostatectomy: A patient education video

What to expect during admission for a prostatectomy procedure. A prostatectomy is a surgical procedure to remove the prostate gland.

An interview about the Laparoscopic Prostatectomy procedure with Douglas Dahl, MD, FACS

This video is a detailed explanation – and view – of the surgery. It contains some graphic footage.

Same day surgery procedures: A patient education video

What to expect during admission for ambulatory procedures with short recovery time, allowing discharge that day.

Mass General Urology Associates
15 Parkman St
Wang 528
Boston, MA 02114-3117

Phone: 617-726-0875
Fax: 617-726-6131

Department of Urology
55 Fruit Street
Gray-Bigelow 1102
Boston, MA 02114-2696

Phone: 617-726-0875

Mass General Urology Associates
15 Parkman St
Wang 528
Boston, MA 02114-3117

Phone: 617-726-0875
Fax: 617-726-6131

Department of Urology
55 Fruit Street
Gray-Bigelow 1102
Boston, MA 02114-2696

Phone: 617-726-0875

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