Dr. Mark Greenberg

Dr. Mark Greenberg

Family Doctor
North York, ON
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Dr. Mark Greenberg Bio

Dr. Mark A. Greenberg, B.Sc., MD, CCFP(AM) , Family Doctor , North York has been in full-time Family Practice since 1989, and is certified in Family Medicine by the College of Family Physicians of Canada. As of 2014, his family practice is limited to treatment of individuals with substance use disorder and infant circumcision. He has been performing infant circumcision since 2001. He has worked in the Emergency Department of Humber River Regional Hospital, and has extensive operating room experience. Dr. Mark A. Greenberg, B.Sc., MD, CCFP(AM) , Family Doctor , North York has served as Chief of the Department of Family Medicine at the York Finch General Hospital (Now Humber River Regional Hospital.) Currently, he is the Lead Physician, Addiction Service/RAAM Clinic, at the Sunnybrook Health Sciences Centre, Toronto. Dr. Mark A. Greenberg, B.Sc., MD, CCFP(AM) , Family Doctor , North York no longer performs Brit Milah. “I strive for the best care for my patients, by creating a family atmosphere where each patient is given the necessary care in a prompt manner. Where your time is as respected as mine!


      Bachelor of Science, 1984, University of Toronto     

       Doctor of Medicine, 1988, Faculty of Medicine, University of Toronto

       Residency in Family & Community Medicine, 1988-1990


College of Physicians and Surgeons of Ontario, Certificate of Independent Practice, 1989

College of Family Physicians of Canada

      Certified in Family Medicine, 1990

       Fellowship in Family Medicine, 2005

       Certificate of Added Competency in Addiction Medicine, 2021

American Society of Addiction Medicine

     Certified in Addiction Medicine, 1998

Dr. Mark A. Greenberg, B.Sc., MD, CCFP(AM) ,  Family Doctor, Toronto Is in good standing with the College of Physicians and Surgeons of Canada,and the Canadian Medical Association

Keywords: Atopic Dermatitis, Chronic Sinusitis,Sleep Apnea,  Hypothyroidism  Shingles,   Benefits of Eggplant,  Celiac Disease, Obesity,

( Dr. Mark Greenberg, Family Doctor, North York, ON) is in good standing with the College of Physicians and Surgeons.

If you are looking for local services or  treatment from your local family physician  in the office or hospital from a Family Doctor, contact a provider such as ( Dr. Mark Greenberg ) to inquire if they are accepting patients or you need a referral.   Phone number to book an appointment Call: (416) 661-0004 or (416) 702-8990 ( Dr. Mark Greenberg ) is in good standing with the  Canadian Medical Association (CMA)

The speaker in the video may have no association with ( Dr. Mark Greenberg, Family Doctor North York, ON ). 
( Dr. Mark Greenberg, Family Doctor North York, ON ), may talk about some of the conditions and some of the treatment options shown on the videos. Always talk with your  local Family Doctor about the information you learnt from the videos in regards to Gynecomastia treatments and procedures the local Family Doctor could  perform and if they would be appropriate for you. Remember good information from local Family Doctor is the corner stone to understanding What is Otosclerosis your condition or disease.

In dealing with male incontinence it's always important to talk to your family doctor and get a referral to a local urologist for solutions like contino  In conditons like sleep apnea is a sleep disorder that causes a person's breathing to stop during sleep. Patients with sleep apnea can stop breathing up to hundreds of times a night, depriving the brain and body of oxygen. Get your vaccinations. The common cold or flu can exacerbate chronic obstructive pulmonary disease. Opt for a flu vaccine, and make sure you’re up to date on your pneumococcal vaccine. If you have travel plans, ensure you have all the necessary travel vaccines. 

Your local family Physician often work wit h your local  orthopedic surgeons to help with sleketal issues and injuries. Certaines formes de Trouvez des informations ou des preuves locales comme des médecins de famille locaux ou des médecins de famille à montréal et à québec Chronic obstructive pulmonary disease (COPD) is used to describe chronic lung diseases, including bronchitis, refractory (non-reversible asthma) and emphysema. COPD has many causes, including smoking and genetic factors.

Please contact ( Dr. Mark Greenberg, Family Doctor North York, ON ) to enquire if this health care provider is accepting new patients. ( Dr. Mark Greenberg ) Is in good standing with the College of Physicians and Surgeons of Canada 

It's crucial to continue receiving vaccinations throughout life to protect against infectious diseases that haven't been eradicated and to maintain immunity against those for which immunity wanes over time.

The emergence of antibiotic resistance has indeed made the treatment of certain infections more challenging. Vaccination plays a critical role in preventing infections in the first place, reducing the need for antibiotics and helping to curb the development of antibiotic resistance.

Some vaccines, like the tetanus vaccine, require booster shots because the immunity they provide gradually decreases over time. By staying up to date with such vaccinations, adults can ensure they maintain optimal protection against preventable diseases.

Moreover, adult immunization has broader benefits beyond personal protection. By getting vaccinated, healthy adults contribute to the concept of herd immunity. This means that when a significant portion of the population is immune to a disease, it creates a protective barrier that helps prevent its spread and protects those who are most vulnerable, such as young children, the elderly, and individuals with weakened immune systems.

It's important to have open and regular discussions about immunization with primary healthcare providers. They can provide guidance on the appropriate vaccines and schedules based on individual health status, age, occupation, travel plans, and other relevant factors. By staying proactive and getting vaccinated as adults, we can collectively reduce the burden of infectious diseases and help protect ourselves and others.


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This content is for informational purposes only, and is not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified healthcare professional with any questions you may have regarding a medical condition.

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