Dr. Katherine Jeanne Kosar

Dr. Katherine Jeanne Kosar provides comprehensive family medical care for a wide variety of health concerns affecting patients of all ages, including but not limited to:

Adult Common Health Issues

• Helicobacter pylori (H. pylori) Infection - Testing & Eradication Therapy: Testing for Helicobacter pylori infection in appropriate clinical contexts (e.g., patients with peptic ulcer disease, certain types of gastritis, dyspepsia in high-prevalence areas, or family history of gastric cancer) using non-invasive methods like urea breath test, stool antigen test, or serology (less reliable for active infection).
• Anemia (Iron Deficiency, Vitamin B12/Folate Deficiency - Diagnosis & Management): Investigating causes of anemia (e.g., symptoms like fatigue, pallor, dyspnea on exertion, dizziness, palpitations, restless legs) through thorough history (diet, medications, menstrual history, GI symptoms), physical examination, and targeted blood tests (Complete Blood Count - CBC with differential and red cell indices, iron studies including ferritin, serum vitamin B12, serum folate, reticulocyte count, LDH, bilirubin if hemolysis suspected).
• Venous Insufficiency & Varicose Veins (Conservative Management & Lifestyle Advice): Management includes advising on leg elevation, regular exercise (calf muscle pump activation), weight management, avoidance of prolonged standing/sitting, and recommending/prescribing appropriately fitted graduated compression stockings. Patient education on skin care to prevent venous ulcers.
• Allergic Conjunctivitis & Dry Eye Syndrome - Primary Care Management: Diagnosing and managing common eye conditions like allergic conjunctivitis (itchy, red, watery eyes often seasonal or related to specific allergens) with advice on allergen avoidance, cool compresses, artificial tears, and topical/oral antihistamines or mast cell stabilizers. Assessing and providing initial management for dry eye syndrome (keratoconjunctivitis sicca - gritty, burning, foreign body sensation, intermittent blurry vision) with education on environmental modifications, regular use of artificial tears/lubricating ointments, and advice on blinking exercises/lid hygiene. Referral to ophthalmology if symptoms are severe, persistent, vision is affected, or diagnosis is uncertain.

Common Chronic Conditions

• Thyroid Disorders (Hypothyroidism, Hyperthyroidism, Hashimoto's, Nodules): Adjusting thyroid medication based on symptoms and regular blood tests (TSH, free T4, thyroid antibodies) to maintain optimal thyroid function and well-being.
• Gastroesophageal Reflux Disease (GERD) & Peptic Ulcer Disease (PUD) - Chronic Management: Ongoing management of chronic GERD (acid reflux) and PUD, including lifestyle modifications (diet, weight, smoking cessation), prescription of acid-suppressing medications (PPIs, H2 blockers), H. pylori testing and eradication, and monitoring for complications or need for endoscopy.
• Hypertension (High Blood Pressure) & Associated Cardiovascular Risk Factors: Individualized, evidence-based care plans for individuals living with hypertension, focusing on patient education, shared decision-making, and promoting long-term adherence to treatment for optimal cardiovascular health.
• Chronic Kidney Disease (CKD) - Early to Moderate Stages: Primary care strategies to protect and preserve kidney health, including tight blood pressure and glycemic control, and education on kidney-friendly habits.

Pediatric Common Issues

• Childhood Immunization Schedule Management & Counseling: Keeping your child's vaccinations fully up-to-date for their individual protection and to contribute to community (herd) immunity, thereby protecting vulnerable individuals.
• Newborn Care & Infant Feeding Support (Breastfeeding, Formula): Supporting new parents in caring for their infant, addressing common concerns (colic, reflux, sleep patterns), and promoting bonding and healthy attachment.
• Adolescent Health Care & Counseling (Physical, Mental, Sexual Health, Lifestyle, Substance Use): Creating a safe, non-judgmental, and youth-friendly healthcare environment where teenagers feel comfortable discussing their health concerns openly, receive accurate information, build a trusting relationship with their doctor, and are empowered to take charge of their health.
• Pediatric Asthma, Eczema & Allergy Management (Primary Care): Primary care coordination for childhood asthma, eczema, and allergies, ensuring optimal health, growth, and development, with close collaboration with pediatric specialists when necessary for severe or complex cases.

Joint Muscle Pain

• Gout & Pseudogout (Crystal Arthropathies) - Acute Attack Management & Chronic Prevention Strategies: Providing effective treatment for acutely painful crystal-induced arthritis, focusing on rapid symptom relief during flares, and implementing robust long-term preventative measures for chronic gout to improve joint health and overall well-being.
• Repetitive Strain Injuries (RSI), Tendinopathies & Work-Related Musculoskeletal Disorders (WRMSDs) - Initial Assessment & Conservative Management: A first point of contact for work-related or activity-induced repetitive strain injuries, guiding effective conservative management, facilitating return to function, and providing documentation for workplace accommodations if necessary. Referral to specialists (e.g., sports medicine, orthopedics, physiatry) if symptoms are persistent, severe, or require further investigation/intervention.
• Fibromyalgia & Other Widespread Chronic Pain Syndromes - Primary Care Diagnosis & Multimodal Management: A supportive, holistic, and patient-centered primary care approach to helping individuals manage the complex and often debilitating symptoms of fibromyalgia (widespread pain, profound fatigue, sleep disturbance, cognitive dysfunction - 'fibro fog', mood disturbances), aiming to improve daily function, reduce pain interference, and enhance overall quality of life.
• Mechanical Low Back & Neck Pain (Acute, Subacute, Chronic - Uncomplicated): Assessment and management of non-specific (mechanical) low back pain and neck pain, which accounts for the majority of spinal pain presentations. This includes taking a thorough history, performing a focused physical examination to rule out 'red flag' conditions (e.g., fracture, infection, malignancy, cauda equina syndrome), providing reassurance about the generally favorable prognosis of acute pain, and advising on pain relief (acetaminophen, NSAIDs, short-term muscle relaxants if severe spasm), maintaining activity as tolerated (avoiding prolonged bed rest), heat/cold application, and self-care strategies. For subacute or chronic pain, emphasis on active therapies (exercise, physiotherapy referral), addressing psychosocial factors (yellow flags), and promoting functional restoration.

This list offers some examples of common conditions managed in family practice. A diagnosis is always based on an individual assessment by Dr. Kosar. If your specific health concern isn't listed, please contact the clinic to discuss your needs.

• Eating Disorder Screening & Referral Coordination: Primary care role in early recognition of eating disorders and ensuring patients access comprehensive treatment pathways.
• Adolescent Health Care & Counseling (Incl. Sexual Health, Mental Health, Lifestyle): Supporting the unique physical, emotional, and social health needs of adolescents during a critical period of development.
• Hospital Discharge Follow-Up & Transitions of Care Management: Supporting patients post-hospitalization with continuity of care, clear communication with hospital teams, and proactive management to prevent complications, reduce readmissions, and optimize recovery.
• Travel Medicine Consultations (Preventative Advice & Routine/Travel Vaccinations): Offering essential travel health services and advice to protect your health while abroad, tailored to your destination and activities.
• Well-Child Visits & Developmental Surveillance (Infancy to Adolescence): Expert medical care and guidance for your child at every stage of development, promoting optimal physical, cognitive, and emotional health.

Note: This list highlights some of the key services offered by Dr. Kosar. For a comprehensive understanding of all services, or to discuss your specific health needs, please schedule a consultation.

All services are provided in accordance with the scope of practice for Family Doctors in ON and the ethical and professional standards set by The College of Physicians and Surgeons of Ontario (CPSO).

At McMaster University Medical Centre, family medicine is centered on a collaborative partnership to help individuals like you achieve significant improvements in your health, manage ongoing conditions effectively, and enhance your overall well-being. Dr. Kosar frequently works with patients towards goals such as:

• For many individuals, wanting to establish care with a new family doctor after moving to the area can be a real barrier. Dr. Kosar's approach focuses on achieving ensuring their children, from infancy through adolescence, received the complete schedule of timely and appropriate immunizations, effectively protecting them from a wide range of preventable and potentially serious childhood diseases, making it possible for patients to once again enjoy confidently and effectively advocating for their own complex health needs, specific treatment preferences, and the essential healthcare requirements of their family members when interacting within the broader, sometimes impersonal, healthcare system.
• If wanting to discuss fertility concerns or get initial advice before trying to conceive is a barrier, Dr. Kosar develops strategies aimed at seeing profoundly positive and lasting changes in their overall approach to health, preventative self-care, and health-seeking behaviors as a direct and inspiring result of Katherine's ongoing education, consistent encouragement, and positive role modeling, facilitating the ability to enjoy being able to comfortably stand for reasonably extended periods when necessary, for example, while cooking intricate meals, attending a standing-room-only event, actively participating in a workshop, or waiting patiently in unavoidable queues.
• Many seek Dr. Kosar's help for needing a doctor's note for work or school due to a recent illness or injury. The collaborative goal is their entire family having a central, trusted, and welcoming medical home base with Katherine and the clinic team, which greatly simplifies their healthcare journey and provides a sense of security and belonging, allowing a return to valued activities like independently and efficiently performing all personal grooming and hygiene tasks (bathing, dressing, toileting) without any difficulty, assistance, or associated pain, maintaining their dignity.
• Through Dr. Kosar's guidance, patients with wanting to discuss options for medical assistance in dying (MAID) for a terminal condition (in provinces where applicable) often find they can achieve experiencing a marked and sustained improvement in their overall sense of well-being, daily energy levels, vitality, and a noticeable, positive enhancement in their day-to-day quality of life and functional capacity and once again pursue skillfully and creatively cooking a wide variety of nutritious, flavorful, and delicious meals from scratch for themselves, their partners, and their families on a regular basis, finding joy in the process.

Your personalized healthcare plan, developed in discussion with Dr. Kosar, will be thoughtfully designed to help you reach your specific functional, preventative, and wellness objectives. She believes in empowering patients with the knowledge and support needed to take an active role in their health journey.

Dr. Kosar practices at McMaster University Medical Centre, situated in the Humberlea, Emery neighborhood of Toronto. The clinic is conveniently located near Harbourfront Centre and is accessible via TTC (Subway, Streetcar, Bus). Ample parking is generally accessible close to the clinic entrance; please observe local signage.

What exactly is a family doctor (Family Doctor) and what is their role?

A family doctor (Ontario) is a physician who has completed post-graduate training in family medicine. They are skilled in providing continuous and comprehensive medical care, health maintenance, and preventive services to patients of all ages. This includes diagnosing and treating a vast array of illnesses, managing complex long-term health conditions, offering health education and counseling on lifestyle choices, and acting as your advocate and guide within the broader healthcare system.

Is seeing a family doctor (Family Doctor) covered by Ontario Health Insurance Plan (OHIP) in ON?

Medically necessary visits to a family doctor are typically covered by the Ontario Health Insurance Plan (OHIP) for eligible residents with a valid provincial health card. However, some services, such as cosmetic procedures, most travel medicine consultations, sick notes, insurance forms, and driver's medicals, may not be covered and might have an associated fee. Please confirm with McMaster University Medical Centre if you have questions about specific non-insured services or potential fees.

What should I do if I have an urgent medical issue when McMaster University Medical Centre is closed?

If you have a life-threatening medical emergency, please call 911 or go to the nearest hospital emergency department immediately. For urgent, non-life-threatening issues that cannot wait until McMaster University Medical Centre reopens, you may consider visiting an urgent care centre or a walk-in clinic. Some family health teams or groups offer after-hours on-call services for their registered patients; please check with McMaster University Medical Centre or Dr. Kosar during regular hours to see if such arrangements are in place for their practice. Our clinic voicemail [(416) 744-8510] may also provide instructions or resources for after-hours care.

What does 'preventative care' involve with a family doctor like Dr. Kosar?

Preventative care provided by Dr. Kosar aims to stop health issues from occurring or to catch them at an early, more manageable stage. This includes regular physical exams, vaccinations, screenings for common conditions like certain cancers or heart disease risk factors (high blood pressure, high cholesterol), and personalized advice on maintaining a healthy lifestyle through diet, physical activity, and avoiding harmful habits like smoking. It’s about being proactive with your health rather than just treating problems as they arise, and Dr. Kosar can help guide you in these efforts.

Do I need a referral to see a family doctor (Family Doctor) in ON?

Generally, you do not need a referral to see a family doctor if the doctor is accepting new patients. However, finding a family doctor who is accepting new patients can be challenging. Resources like Health Care Connect in Ontario may be helpful. A referral is usually required from a family doctor to see most medical specialists.

How do I get a prescription refilled by Dr. Kosar?

For most prescription refills, please contact your pharmacy first, at least 5-7 days before you run out of medication. Your pharmacy can often fax a refill request directly to Dr. Kosar's office. Please allow at least 2-3 business days for processing. For certain medications (e.g., narcotics, controlled substances), or if it has been a while since your last review, an appointment will be required. It is always best to request refills proactively.

How can I find a family doctor (Family Doctor) in ON who is accepting new patients?

Check the website of The College of Physicians and Surgeons of Ontario, which often has a 'Find a Doctor' tool. In Ontario, you can register with Health Care Connect. Ask friends, family, or colleagues for recommendations. Contact local community health centres or new patient clinics. Finding a family doctor may take time.

McMaster University Medical Centre
Unit 3N16, 2367 Finch Ave. West, Genetics HHSC
Toronto, ON, M9M 2W8

Phone: (416) 744-8510

Dr. Katherine Jeanne Kosar is regulated by the Regulated Health Professions Act, 1991 & Medicine Act, 1991 (Ontario) in ON and is a registered member in good standing with The College of Physicians and Surgeons of Ontario (CPSO).

Registration Number: 62530

Verify registration with The College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Kosar-Katherine-Jeanne/0048552-62530

Family doctors like Dr. Kosar are skilled in managing a wide range of health issues. For urgent or life-threatening emergencies, please call 911 or visit the nearest emergency department. It is always recommended to maintain open communication with your family doctor about all aspects of your health, including any treatments received from other practitioners.