Dr. Aynharan Sinnarajah – Family Doctor | Oshawa, ON

Dr. Aynharan Sinnarajah is a Family Doctor. Practicing at a family doctor practice in Oshawa, ON, he is dedicated to providing high-quality, comprehensive, and patient-centered family medical care. He is registered with The College of Physicians and Surgeons of Ontario (CPSO) and practices in accordance with the standards set by this regulatory body and the principles of modern family medicine. His focus is providing continuous and comprehensive primary medical care for individuals and families across all ages and stages of life. This includes preventative care, diagnosis and treatment of acute and chronic illnesses, and management of ongoing health needs, serving as the central point for patient care. He serves patients of all ages, from newborns and infants through to children, adolescents, adults, and seniors.

Dr. Aynharan Sinnarajah completed his Medical Degree. He brings valuable clinical experience to the practice. He has developed skills or a strong interest in areas such as comprehensive primary care within family practice. He is also dedicated to ongoing professional development to stay current with the latest advancements in family medicine.

Key aspects of his practice philosophy include a dedication to preventative medicine and health promotion, aiming to identify risks early and support patients in maintaining long-term wellness; a holistic approach to health, considering the physical, mental, emotional, and social factors that influence a patient's well-being; empowering patients through clear communication, comprehensive health education, and fostering active participation in their own health decisions. He is fluent in English and also offers consultations in Tamil.

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

Common Acute Conditions

• Upper Respiratory Tract Infections (URTIs - Colds, Flu, Sinusitis, Pharyngitis): Addressing symptoms such as cough, sore throat (including rapid strep testing where available), nasal congestion, facial pain/pressure, and fever associated with common URTIs.
• Acute Musculoskeletal Injuries (Sprains, Strains, Minor Back/Neck Pain): Providing advice on RICE/POLICE principles (Rest/Protection, Optimal Loading, Ice, Compression, Elevation), pain relief options (analgesics, NSAIDs, heat/cold therapy), and gentle exercises for acute soft tissue injuries to promote healing.
• Gastrointestinal Infections (Gastroenteritis, Food Poisoning): Helping you cope with acute digestive illnesses by providing guidance on oral rehydration solutions, appropriate diet modification during and after illness, and when to seek medical attention for persistent or severe symptoms.

Joint Muscle Pain

• Mechanical Low Back & Neck Pain (Acute, Subacute, Chronic - Uncomplicated): Helping patients understand the nature of their mechanical spinal pain, empowering them with self-management techniques, and discouraging reliance on passive treatments or unnecessary imaging for uncomplicated cases, in line with clinical practice guidelines.
• 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.
• 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.
• Repetitive Strain Injuries (RSI), Tendinopathies & Work-Related Musculoskeletal Disorders (WRMSDs) - Initial Assessment & Conservative Management: Providing advice on activity modification (relative rest, avoiding aggravating activities), ergonomic adjustments (workstation setup, tool use), simple analgesia (NSAIDs - oral/topical, acetaminophen), ice/heat application, and appropriate referral to physiotherapy or occupational therapy for specific exercises (stretching, strengthening), manual therapy, splinting, and further rehabilitation or prevention strategies.

Adult Common Health Issues

• Anemia (Iron Deficiency, Vitamin B12/Folate Deficiency - Diagnosis & Management): Managing common types of nutritional anemia such as iron deficiency anemia (oral or intravenous iron supplementation, dietary advice to increase iron intake and absorption, investigation for source of chronic blood loss if suspected - e.g., GI bleed, heavy menses) and megaloblastic anemia due to vitamin B12 or folate deficiency (oral or parenteral supplementation, dietary counseling, investigation for underlying causes like pernicious anemia, malabsorption syndromes - celiac disease, Crohn's, post-gastric surgery, medication effects - metformin, PPIs).
• Venous Insufficiency & Varicose Veins (Conservative Management & Lifestyle Advice): Primary care support for managing discomfort and preventing complications associated with venous disease. Referral to vascular specialists or phlebologists for more advanced treatments (e.g., sclerotherapy, endovenous ablation, surgery) if symptoms are severe, progressive, or complicated by ulceration or recurrent phlebitis.
• Helicobacter pylori (H. pylori) Infection - Testing & Eradication Therapy: Prescribing evidence-based eradication therapy regimens (typically involving a combination of antibiotics and a proton pump inhibitor - PPI) for confirmed H. pylori infection, according to local guidelines and resistance patterns. Providing patient education on medication adherence and potential side effects.
• Benign Prostatic Hyperplasia (BPH) - Symptom Management & Monitoring: Management includes lifestyle advice (fluid management, avoiding bladder irritants), behavioral therapies (timed voiding), and prescription of medications such as alpha-blockers (e.g., tamsulosin, alfuzosin) to relax prostate/bladder neck muscles, or 5-alpha-reductase inhibitors (e.g., finasteride, dutasteride) to shrink prostate volume. Monitoring for symptom improvement and medication side effects.

Pediatric Common Issues

• Common Childhood Infections (Viral & Bacterial - Ear, Throat, Chest, Skin, GI): Expert management of a wide spectrum of acute illnesses affecting infants, toddlers, and school-aged children, including clear guidance for parents on home care, symptom relief, and when to seek urgent re-assessment.
• 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.
• 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.

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

• Diabetes Mellitus Care (Type 1, Type 2, Gestational, Prediabetes): Ongoing support, education, and evidence-based treatment for individuals living with all forms of diabetes to help them manage their condition effectively and maintain a high quality of life.
• Chronic Kidney Disease (CKD) Management (Early to Moderate Stages): Primary care strategies to protect kidney health, including blood pressure control, glycemic control in diabetics, dietary advice (e.g., protein, sodium, potassium considerations), and timely referrals to nephrology.
• Osteoporosis Screening, Prevention & Management: Helping patients reduce their risk of fragility fractures through comprehensive bone health management.
• Cancer Screening Coordination (Cervical, Breast, Colorectal, Prostate, Lung - as per guidelines): Proactive screening discussions and referrals for common cancers to ensure timely diagnosis and improve treatment outcomes.
• Diagnosis & Management of Common Acute Infections (Respiratory, Urinary, Skin, GI): Providing timely medical care for a wide range of infections, including diagnosis, appropriate treatment (e.g., antibiotics when indicated by bacterial infection), and advice for symptom relief and recovery.

Note: This list highlights some of the key services offered by Dr. Sinnarajah. 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. Aynharan Sinnarajah'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. Sinnarajah frequently works with patients towards goals such as:

• When a follow-up for a recent concussion to ensure they are recovering properly impacts daily life, Dr. Sinnarajah helps patients strive for accessing crucial mental health support, initial assessment, and evidence-based treatment in a familiar, readily accessible, and completely non-stigmatizing primary care environment meticulously provided by Dr. Sinnarajah, making activities such as meaningfully celebrating positive health milestones, consistently encouraging check-up results from Dr. Sinnarajah, and successfully achieving deeply personal wellness goals (big or small) with a profound sense of accomplishment and renewed motivation possible again.
• Patients often come to Dr. Sinnarajah regarding wanting to understand if genetic testing is appropriate for them based on family history. Working together, they aim for obtaining all necessary medical documentation, forms, and reports for work, school, travel, or insurance purposes efficiently, accurately, and without undue hassle through Dr. Sinnarajah's supportive office team, making a return to meaningfully and collaboratively contributing to important household decision-making processes, family event planning, or shared domestic responsibilities with clarity and fairness feasible.
• With Dr. Sinnarajah's care, managing wanting to discuss options for medical assistance in dying (MAID) for a terminal condition (in provinces where applicable) aims for 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, empowering patients to get back to what they love, like patiently, effectively, and enjoyably helping their school-aged children or young grandchildren with challenging homework assignments, creative school projects, or extracurricular learning activities that require sustained patience, focus, and clear communication.
• Dr. Sinnarajah often sees patients whose wanting to discuss their child's nutritional needs as a vegetarian or vegan limits their enjoyment of generously volunteering their valuable time, unique skills, and boundless energy in their local community for causes they deeply believe in, feeling consistently healthy, capable, and motivated enough to contribute meaningfully and make a real difference. The goal of care is to achieve experiencing substantially reduced anxiety and apprehension about specific medical procedures or tests after Dr. Sinnarajah took the time to explain them thoroughly, patiently answered all questions, and directly addressed their specific fears and concerns and restore their active lifestyle.

Your personalized healthcare plan, developed in discussion with Dr. Sinnarajah, 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. Sinnarajah practices at a family medical clinic in Oshawa, situated in the Vanier, McLaughlin West neighborhood of Oshawa. The clinic is conveniently located near Oshawa Centre and is accessible via Durham Region Transit (DRT). Street parking and nearby public or paid lots typically offer convenient options for visitors.

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 they are 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 unit's website, or the College of Physicians and Surgeons of Ontario's patient-doctor matching service (if available) can help. A referral from a family doctor is usually needed to see specialists.

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.

I have multiple health problems. How does Dr. Sinnarajah handle complex care?

If you have several health issues, Dr. Sinnarajah is well-equipped to be your central point of care. His role includes understanding how your different conditions and their treatments might impact each other, helping you to navigate the healthcare system, and ensuring that all aspects of your health are considered in your overall treatment plan. Dr. Sinnarajah will work with you and other specialists to manage your health comprehensively.

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

Preventative care with Dr. Sinnarajah focuses on keeping you healthy and identifying potential health problems before they become serious or cause symptoms. This involves a range of services tailored to your age, gender, and risk factors, such as routine check-ups (periodic health exams), age-appropriate cancer screenings (e.g., Pap tests, mammograms, colon cancer screening, PSA discussions), immunizations (flu shots, travel vaccines, routine boosters), blood pressure and cholesterol checks, screening for diabetes, counseling on healthy lifestyle choices (diet, exercise, smoking cessation, responsible alcohol use), and risk assessments for various conditions. The primary goal is to prevent illness, detect diseases early when they are most treatable, and promote your long-term health and well-being.

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

Finding a family doctor in Ontario who is accepting new patients can take time and effort. Check the College of Physicians and Surgeons of Ontario website; they often have a 'Find a Doctor' tool or list. 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 directly.

What should I do if I have an urgent medical issue when the clinic is closed?

If you have a life-threatening emergency, call 911 or go to the nearest hospital emergency department immediately. For urgent, non-life-threatening issues, consider an urgent care centre or walk-in clinic. Check with our clinic during regular hours to see if after-hours on-call services are available. Our clinic voicemail [(905) 576-8711] may also provide instructions or resources for after-hours care.

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 OHIP for eligible Ontario residents with a valid health card. However, some services (e.g., cosmetic procedures, most travel medicine consultations, sick notes, insurance forms, driver's medicals) may not be covered and might have a fee. Confirm with our clinic if you have questions about specific services or fees.

1 Hospital Crt
Oshawa, ON, L1G 2B9

Phone: (905) 576-8711

Dr. Aynharan Sinnarajah 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: 76364

Verify registration with The College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Sinnarajah-Aynharan/0180537-76364

Family doctors like Dr. Sinnarajah 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.