Our UHN programs and services are among the most advanced in the world. We have grouped our physicians, staff, services and resources into 10 medical programs to meet the needs of our patients and help us make the most of our resources.
University Health Network is a health care and medical research organization in Toronto, Ontario, Canada. The scope of research and complexity of cases at UHN has made us a national and international source for discovery, education and patient care.
Our 10 medical programs are spread across eight hospital sites – Princess Margaret, Toronto General, Toronto Rehab’s five sites, Toronto Western – as well as our education programs through the Michener Institute of Education at UHN. Learn more about the services, programs and amenities offered at each location.
Maps & Directions
Find out how to get to and around our nine locations — floor plans, parking, public transit, accessibility services, and shuttle information.
Ways You Can Help
Being touched by illness affects us in different ways. Many people want to give back to the community and help others. At UHN, we welcome your contribution and offer different ways you can help so you can find one that suits you.
The Newsroom is the source for media looking for information about UHN or trying to connect with one of our experts for an interview. It’s also the place to find UHN media policies and catch up on our news stories, videos, media releases, podcasts and more.
There are at UHN:
We are an academic tertiary referral center whose dermatologists are all board certified by the Royal College of Physicians and Surgeons of Canada. We specialize in the medical treatment of dermatological conditions such as:
We perform or refer for surgical interventions and we perform photopatch testing when required
1 in 6 Canadians will be diagnosed with skin cancer in their lifetime and each year 85,000 Canadians will be diagnosed with skin cancer. All Canadians with risk factors for skin cancer should be checked by their family doctor who will then refer to a dermatologist if there are any concerns. Practice sun and skin awareness. Perform regular self-checks so that you are familiar with your skin. That way you’ll notice changes. Then, report them to your doctor without delay.
Promptly show your doctor any:
The Dermatologists at the Toronto Western Hospital are specialized in diagnosing and treating all forms of skin cancer as well as the skin needs of patients with other forms of cancer and its treatment:
We also work closely with UHN oncologists to provide treatments for skin conditions resulting from any type of cancer:
At our clinic, we offer the following:
Phototesting and photopatch testing are done to investigate photosensitivity disorders. We are able to refer patients to phototherapy if it is required.
Learn more about
what you can expect when you have a clinic appointment.
Ontario Sun Safety Working Group.
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Division Director: Dr. Cheryl Rosen
Staff Physicians or Specialists
Dr. Renita AhluwalliaAlternate ContactPhone: 416 323 7546Fax: 416 323 6236
Dr. Erin DahlkeAlternate ContactPhone: 416 323 7546Fax: 416 323 6236
Dr. Phillip DoironAlternate ContactPhone: 416 323 7546Fax: 416 323 6236
Dr. Eric EisenbergAlternate ContactPhone: 905 896 1515
Dr. Nazli GhiasiAlternate ContactPhone: 905 274 9999Fax: 905 274 9991
Dr. Sameh HannaAlternate ContactPhone: 416 922 9620Fax: 416 922 4358
Dr. Charles LyndeAlternate ContactPhone: 905 471 5022Fax: 905 471 1878
Dr. Sanjay SiddhaAlternate ContactPhone: 905 883 7997Fax: 905 883 7994
Personal history of pre-cancerous conditions
You will be contacted with information about your first appointment.
Please bring the following to your appointment. Not all of these items may be needed for your appointment. Our clinic or your referring doctor will let you know what you must bring.
Please arrive 15 minutes before your appointment.
When you arrive, you will sign in with the receptionist. You will need your health card (OHIP card) to sign-in. If you do not have an OHIP card, please bring another form of government-issued photo ID, such as a driver’s license or passport.
You may be given a Measuring Health Equity Questionnaire to fill out. This form contains questions about your background. We collect this information to find out who we serve and what unique needs you may have. The form is voluntary and you can choose ‘prefer not to answer’ to any or all questions. However, the information you choose to give us will help us improve the quality of care for you and others.
First appointments take longer than follow-up appointments. Your first appointment can take 2 hours or more. Follow-up appointments usually take 15 to 30 minutes. We do everything we can to stay on time but sometimes unforeseen circumstances may delay your appointment.
At the end of your first appointment, the nurse or doctor will give you a contact list for your health care team. If you don’t get a contact list, feel free to ask for it.
After every appointment, a member of your health care team will tell you about your next visit. Be sure you understand what is going to happen next. For example, know the time and place of your next visit or if someone will call you with this information.
If you are unsure about what your next steps are, don’t be afraid to ask a member of your team. We are here to help you.
We understand that reaching us by phone can sometimes be difficult. Often our phone lines are busy or are turned over to the message centre so our staff can prepare for clinic visits or help other patients. We make every effort to return your call within 24 hours. Our staff will try to reach you 2 times. If we are not able to reach you directly you may need to call us again.