Dr. Jean Hin Leo Sin

Dr. Jean Hin Leo Sin 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

• Venous Insufficiency & Varicose Veins (Conservative Management & Lifestyle Advice): Initial assessment and conservative management of symptoms related to chronic venous insufficiency (CVI) and varicose veins, such as leg aching, heaviness, swelling (edema), skin changes (e.g., hyperpigmentation, lipodermatosclerosis, venous eczema), and uncomplicated superficial thrombophlebitis. Ruling out deep vein thrombosis (DVT) if acute unilateral swelling/pain.
• 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.
• 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).

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.
• 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.
• Newborn Care & Infant Feeding Support (Breastfeeding, Formula): Comprehensive medical care for newborns immediately after birth and through the first year of life. Includes routine physical exams, growth monitoring, screening for jaundice and congenital conditions (e.g., hip dysplasia, heart murmurs), umbilical cord care, and vitamin K/eye prophylaxis discussions (hospital-based). Strong focus on infant feeding support, including guidance and troubleshooting for breastfeeding (latch, positioning, supply concerns, mastitis management) and appropriate formula feeding practices, ensuring adequate nutrition and hydration.
• Common Childhood Infections (Viral & Bacterial - Ear, Throat, Chest, Skin, GI): Providing prompt, effective, and child-friendly medical care for common infections and acute conditions to ensure quick recovery, appropriate antibiotic stewardship (avoiding unnecessary antibiotics for viral illnesses), and prevent complications.

Common Acute Conditions

• Acute Musculoskeletal Injuries (Sprains, Strains, Minor Back/Neck Pain): Initial assessment, diagnosis, and management of common minor acute injuries like ankle sprains, muscle strains (e.g., hamstring, calf), ligament tears (low grade), and acute episodes of uncomplicated low back or neck pain.
• Urinary Tract Infections (UTIs - Cystitis, Pyelonephritis - uncomplicated initial): Prompt diagnosis (e.g., urinalysis, urine culture if needed) and treatment for uncomplicated urinary tract infections such as cystitis (bladder infection) and initial assessment/management of suspected uncomplicated pyelonephritis (kidney infection) to alleviate discomfort (dysuria, frequency, urgency, flank pain) and prevent complications.
• Allergic Reactions (Mild to Moderate - e.g., Hay Fever, Hives, Minor Food Allergy Symptoms): Diagnosing and managing common allergic reactions such as seasonal/perennial allergic rhinitis (hay fever), mild to moderate hives (urticaria), minor localized reactions to insect stings, and initial assessment of suspected mild food allergy symptoms. Does not include anaphylaxis management which is an emergency.

Common Chronic Conditions

• Irritable Bowel Syndrome (IBS) - Primary Care Management: Helping individuals understand and manage their IBS symptoms to improve digestive comfort and quality of life.
• Gastroesophageal Reflux Disease (GERD) & Peptic Ulcer Disease (PUD) - Chronic Management: Developing long-term strategies for managing acid-related digestive disorders effectively.
• Dyslipidemia (High Cholesterol, High Triglycerides): Working collaboratively with you to achieve optimal cholesterol and triglyceride levels to significantly reduce your risk of atherosclerosis, heart attack, stroke, and pancreatitis.
• Chronic Obstructive Pulmonary Disease (COPD - Emphysema, Chronic Bronchitis): Comprehensive management strategies for COPD, focusing on smoking cessation support (critical for slowing progression), appropriate pharmacological therapy (bronchodilators, inhaled corticosteroids), supplemental oxygen therapy assessment (if needed), pulmonary rehabilitation referrals, influenza/pneumococcal vaccinations, and proactive management of exacerbations to improve quality of life, reduce symptoms (breathlessness, chronic cough, sputum production), and slow disease progression.

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

• Urgent Care for Non-Life-Threatening Conditions: Offering same-day or next-day appointments where possible for acute health problems.
• Care for Minor Injuries & Acute Musculoskeletal Complaints: Assessing and treating minor injuries such as sprains, strains, simple fractures (initial assessment and referral for casting/splinting if needed), minor cuts/lacerations (suturing if appropriate), superficial burns, and acute episodes of back or neck pain.
• Grief, Loss & Bereavement Counseling (Initial Supportive Care): Offering compassionate support, active listening, and initial counseling for individuals experiencing grief due to the loss of loved ones, significant life transitions, or other forms of bereavement.
• Skin Lesion Assessment, Biopsy & Minor Excisions (Benign Lesions): Evaluating common benign skin growths (skin tags, seborrheic keratoses, cherry angiomas, dermatofibromas). Performing skin biopsies (punch, shave, excisional) of suspicious lesions to rule out skin cancer, or offering in-office removal of benign lesions for cosmetic reasons or if causing irritation.
• 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.

Note: This list highlights some of the key services offered by Dr. Sin. 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 Dr. Jean Hin Leo Sin's practice, 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. Sin frequently works with patients towards goals such as:

• Dr. Sin assists individuals in navigating needing a tetanus booster after stepping on something rusty. A successful outcome, like achieving significantly better control over chronic inflammatory or allergic conditions like asthma, allergic rhinitis, or eczema, leading to markedly fewer disruptive flare-ups, reduced reliance on rescue medications, and an improved daily experience free from constant symptoms, means they can get back to regularly and enthusiastically participating in various group fitness classes such as engaging yoga sessions, lively Zumba workouts, intense spin classes, or calming Pilates routines, all at their own pace, comfort level, and for their specific health benefits.
• For many individuals, symptoms of a possible urinary tract infection (UTI) like burning pain, increased frequency, or urgency to urinate can be a real barrier. Dr. Sin's approach focuses on achieving having their children's physical growth parameters, crucial cognitive and language development, and social-emotional well-being consistently and meticulously monitored by Dr. Sin during regular well-child visits, with any emerging concerns or developmental deviations addressed promptly, appropriately, and effectively, making it possible for patients to once again enjoy regularly engaging in deeply personal spiritual practices, reflective mindfulness exercises, or formal meditation sessions that significantly contribute to their inner peace, emotional balance, stress reduction, and overall holistic well-being.
• Dr. Sin frequently helps patients who are dealing with needing help to manage side effects from a new medication prescribed by a specialist. The primary aim is achieving their children developing a consistently positive attitude towards healthcare interactions and feeling remarkably comfortable, safe, and trusting during medical check-ups, immunizations, and even minor procedures with Dr. Sin, which often allows them to confidently resume effectively managing their personal or household finances, diligently paying bills on time, and competently handling other essential administrative or organizational tasks with sustained mental clarity and focus.

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

Dr. Sin practices at a family medical clinic in Ajax, situated in the Southwood, Pickering Beach neighborhood of Ajax. The clinic is conveniently located near Historic Pickering Village (edge) and is accessible via Durham Region Transit (DRT). Free patient parking is often available on-site or on nearby streets.

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

Your family doctor (Ontario) is your primary healthcare provider, expertly trained to care for a wide spectrum of health issues, from newborns to seniors. He manages acute illnesses and injuries, oversees the care of long-term chronic diseases, provides routine health screenings and lifestyle counseling, administers vaccinations, and ensures you get access to specialized medical services through referrals when needed. The continuity of care he provides, understanding your health history and individual needs, is fundamental to effective family medicine.

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

Generally, you don't need a referral to see a family doctor in Ontario if that 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, your local health authority website, or the College of Physicians and Surgeons of Ontario's patient-doctor matching service (if available) may be helpful. A referral from a family doctor is usually required to see most medical specialists.

What should I expect during my first 'meet and greet' or new patient intake appointment with Dr. Sin?

When you first meet Dr. Sin as a new patient, expect to spend time discussing your complete health profile. He will likely ask about your past medical history, significant family illnesses, all current medications (including vitamins and supplements), allergies, lifestyle factors like diet and exercise, and any specific health concerns or goals you have. This comprehensive intake helps Dr. Sin understand your overall health status and begin to formulate a long-term care plan. It's also an excellent time to ask any questions you may have about his approach to medicine or clinic procedures.

What if Dr. Sin works in a Family Health Team or group practice? Will I always see Dr. Sin?

Dr. Sin practices as part of a team-based practice, which often means you have access to a range of healthcare professionals like nurses, nurse practitioners, dietitians, social workers, or pharmacists working together. While the goal is always to promote continuity with your primary family doctor, Dr. Sin, for some urgent issues, routine follow-ups, or specific services, you might be seen by another trusted member of the team. This collaborative approach can enhance access to care and provide comprehensive support. The clinic will always strive to have you see Dr. Sin for complex or ongoing issues where that continuity is most crucial.

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 (e.g., cosmetic procedures, most travel medicine consultations, sick notes for work/school, insurance forms, driver's medicals) may not be covered and might have an associated fee. Please confirm with our clinic if you have questions about specific non-insured services or potential fees.

Does Dr. Sin at your clinic offer virtual (video) or phone appointments?

Yes, Dr. Sin at our clinic offers virtual (video) and/or phone appointments for certain types of consultations when clinically appropriate. These can be convenient for discussing some test results, managing stable chronic conditions, prescription renewals for ongoing medications (not controlled substances), or for certain mental health follow-ups. However, many conditions, new problems, or situations requiring a physical examination will still necessitate an in-person visit for accurate assessment and diagnosis. Please discuss with our reception staff or Dr. Sin if a virtual appointment might be suitable for your specific needs. Provincial health plan coverage for virtual visits may vary; please check with our clinic regarding any potential fees for uninsured virtual services.

What should I bring with me to my appointment with Dr. Sin?

Always bring your health card to your appointment with Dr. Sin. A complete list of all medications you're currently taking (prescription, non-prescription, natural health products) is crucial for Dr. Sin to review. For new patients, any past medical records or a health summary you can provide are beneficial. If you're diabetic, bringing your blood sugar log and meter can be helpful. Preparing a list of your symptoms or questions in advance can also make your appointment more productive and ensure all your concerns are addressed.

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

The College of Physicians and Surgeons of Ontario often has a 'Find a Doctor' tool or list. In Ontario, you can register with Health Care Connect. You can also ask friends, family, or colleagues for recommendations, or contact local community health centres or new patient clinics directly. Finding a family doctor who is accepting new patients can be challenging and may take time.

580 Harwood Avenue South
Ajax, ON, L1S 2J4

Phone: (905) 683-2320

Dr. Jean Hin Leo Sin 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: 86321

Verify registration with The College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Sin-Jean-Hin-Leo/0242556-86321

Family doctors like Dr. Sin 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.