Dr. Laurence Klotz

Dr. Laurence Klotz, MD, FRCSC

Dr. Laurence Klotz is a urologist at Sunnybrook Health Sciences Centre in Toronto, Canada. He is known for active surveillance for prostate cancer.

Dr. Klotz started the Toronto active surveillance cohort in the 1990s, showing that many men with low-risk prostate cancer can be monitored safely instead of having immediate surgery or radiation. Active surveillance is now a standard option in prostate cancer guidelines worldwide.

About Dr. Laurence Klotz – Profile Identity

• Full Name: Laurence Klotz, MD, FRCSC
• Credentials: MD, FRCSC
• Specialty: Urology
• Subspecialty and Expertise: Prostate cancer active surveillance; urologic oncology; prostate MRI and biomarkers
• Current Role: Professor of Surgery, University of Toronto; urologist, Sunnybrook Health Sciences Centre
• Years in Practice: Career dates are being confirmed from the official profile
• Languages: English (confirm with the office)
• Gender: Male
• New Patients: Not confirmed; ask the office when you request an appointment
• Telehealth: Not confirmed on the public profiles reviewed; ask the office whether virtual visits are offered
• NPI: Not applicable (NPI numbers are issued only to US providers)

Address & Contact

• Practice: Sunnybrook Health Sciences Centre
• Address: Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, Toronto, ON M4N 3M5, Canada
• Phone: 416-480-6100 (Sunnybrook main line)
• Fax and Email: No public fax or professional email listed on the profiles reviewed
• Website: sunnybrook.ca
• Appointments: Referral from a family doctor or specialist is usually needed
• Office Hours: Clinic days vary; confirm with the office

Specialties & Education

Conditions treated, procedures and areas of expertise listed in public professional profiles for Dr. Laurence Klotz:

• Low-risk prostate cancer and active surveillance
• Prostate MRI and targeted biopsy
• Advanced prostate cancer and hormone therapy
• Elevated PSA

Education and training:

• Medical School and Urology Training: University of Toronto; dates being confirmed

Certifications, License & Affiliations

• Specialist Certification: Fellow of the Royal College of Physicians and Surgeons of Canada (FRCSC) in urology
• Medical License: Licensed to practice medicine; confirm current status with the provincial College of Physicians and Surgeons register
• Hospital and Academic Affiliations: Sunnybrook Health Sciences Centre; Odette Cancer Centre; University of Toronto

Insurance

Insured hospital and physician services are covered by the provincial health plan for eligible residents, usually with a referral from a family doctor. Out-of-province and international patients should ask the hospital’s billing office before the visit. No private plan list is published for Dr. Laurence Klotz.

Fees

No consultation fee applies to insured residents. Uninsured or international patients are billed by the hospital; request an estimate in advance.

Professional Information

• Founder of the Toronto active surveillance cohort for prostate cancer
• Editor-in-chief of the Canadian Journal of Urology
• Past chair of the World Urologic Oncology Federation

Reviews & Ratings

Find MD Health does not create its own overall rating. Patient ratings for Dr. Laurence Klotz may appear on RateMDs and Google, each with its own score and review count. A verified rating and review count for each platform was not recorded at the time of this update, so check each platform directly.

Verification

• Sunnybrook physician profile (sunnybrook.ca)
• College of Physicians and Surgeons of Ontario register
• Profile compiled October 1, 2026. Details marked as being confirmed should be checked against the official sources above.

Frequently Asked Questions

What is Dr. Laurence Klotz known for?

Dr. Laurence Klotz is known for active surveillance for prostate cancer.

Where does Dr. Laurence Klotz practice?

He practices at Sunnybrook Health Sciences Centre in Toronto, Canada.

What conditions does Dr. Laurence Klotz treat?

He focuses on prostate cancer, especially monitoring low-risk disease.

How can I book an appointment with Dr. Laurence Klotz?

Use the Book An Appointment button on this page to send a request, then confirm the location, referral needs and availability with Sunnybrook Health Sciences Centre before you visit.

Find MD Health Disclaimer

Provider location, specialty information, insurance participation, and availability may change. Confirm current details directly with Sunnybrook Health Sciences Centre.