Dr. Marie Marthe Isabel Haney – Pediatrician | Markham, ON

Dr. Marie Marthe Isabel Haney is a dedicated Pediatrician committed to providing comprehensive and compassionate healthcare for infants, children, and adolescents. Practicing at McMaster University in Markham, ON, she is an integral part of the local pediatric healthcare community. She adheres to the high standards set by the College of Physicians and Surgeons of Ontario (CPSO), ensuring that her patients receive safe, ethical, and evidence-based care. Her focus is on promoting healthy growth and development from birth through adolescence, offering a wide range of child healthcare services in a welcoming and child-friendly environment.

She graduated with a Medical Degree from McGill University Faculty of Medicine and Health Sciences in Canada. With over 30 years of experience as a Pediatrician since 1994, Dr. Haney brings a wealth of knowledge and clinical expertise to her practice. She is recognized as a Royal College of Physicians and Surgeons of Canada (RCPSC) Specialist in Pediatrics by the College of Physicians and Surgeons of Ontario (CPSO), reflecting her commitment to lifelong learning and excellence in pediatric care.

Dr. Haney believes in family-centered care, emphasizing collaboration with parents and caregivers to tailor healthcare plans that best suit each child's needs. She is dedicated to preventive health, early intervention, and evidence-based practice, ensuring her young patients receive the best possible start in life. Fluent in both English and French, Dr. Haney strives to make her practice accessible and welcoming to diverse families in Markham. Her approach combines compassion, professionalism, and a genuine passion for helping children thrive.

Dr. Marie Haney provides care for a wide range of childhood conditions, including:

Common General Pediatric Conditions

• Minor Injuries (Cuts, Bruises, Sprains): Common physical injuries that occur during childhood play and activities.
• Eczema (Atopic Dermatitis - general management): A chronic skin condition causing dry, itchy, and inflamed skin.
• Constipation & Other Common Digestive Issues: Difficulties with bowel movements or other common gastrointestinal complaints in children.

Developmental & Behavioral Conditions

• Global Developmental Delay: Significant delays in two or more areas of development (e.g., motor, language, cognitive).
• Sleep Disorders in Children (Behavioral & Mild): Difficulties with initiating or maintaining sleep, or other sleep-related problems often managed with behavioral strategies.
• Attention-Deficit/Hyperactivity Disorder (ADHD): A neurodevelopmental disorder characterized by persistent patterns of inattention, hyperactivity, and impulsivity.

Adolescent Health Concerns

• Eating Disorders (Anorexia Nervosa, Bulimia Nervosa - initial assessment & coordination): Serious conditions related to persistent eating behaviors that negatively impact health, emotions and ability to function.
• Menstrual Disorders (e.g., irregular periods, dysmenorrhea): Irregular, heavy, or painful periods in adolescent girls.
• Substance Use Issues (Screening & Brief Intervention): Addressing concerns related to alcohol, tobacco, or drug use in adolescents.

This list provides examples and is not exhaustive. For personalized advice, please discuss your child's specific situation with Dr. Marie Haney.

• Management of Chronic Pediatric Conditions: Ongoing care and coordination for children with long-term health issues like asthma, allergies, eczema, diabetes, and ADHD.
• Diagnosis & Management of Acute Childhood Illnesses: Evaluation and treatment for common illnesses such as colds, flu, ear infections, sore throats, rashes, and gastrointestinal issues.
• Newborn Care & Examinations: Initial health assessments for newborns in hospital or clinic settings, including feeding support and parental guidance.
• Parental Guidance & Support: Providing education and support to parents on various aspects of child health, safety, behavior, and development.
• Anticipatory Guidance for Injury Prevention: Educating families on age-specific safety measures to prevent common childhood injuries.
• Nutritional Counseling & Weight Management for Children & Adolescents: Guidance on healthy eating habits, addressing nutritional deficiencies, and managing weight concerns in the pediatric population.
• Comprehensive Well-Child Visits (Infancy through Adolescence): Regular check-ups to monitor growth, development, nutrition, and overall health, including physical exams and age-appropriate guidance.

Note: This list provides a general overview of services offered in Pediatrics (Comprehensive care for infants, children, and adolescents). Care plans are highly individualized to meet each child's specific health needs. Please discuss with Dr. Haney or your healthcare team for details relevant to your child's care.

All medical services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO) and relevant pediatric care guidelines. Contact the clinic regarding new patient intake and referral processes.

Practicing at McMaster University in Markham’s Unionville (South), Buttonville, and Milliken Mills West neighborhoods, Dr. Haney’s clinic is situated in a vibrant area of Markham, close to Berczy Park South. The practice is easily accessible via York Region Transit (YRT) / Viva, making it convenient for families using public transportation. The facility is wheelchair accessible and aims to be welcoming to children and families, fostering a friendly environment. Parking is available at or near the facility, ensuring ease of access for all patients. The practice’s location in a family-friendly community reflects Dr. Haney’s commitment to accessible, compassionate pediatric care for the local families she serves.

Are pediatric services with Dr. Haney covered by Ontario Health Insurance Plan (OHIP) in ON?

Medically necessary consultations, well-child visits, immunizations, and treatment for illnesses provided by a licensed Pediatrician like Dr. Haney are generally covered by Ontario Health Insurance Plan (OHIP) in ON. Some specialized tests, procedures, or medications prescribed by a subspecialist may require pre-authorization or might have specific coverage criteria. It's always a good idea to confirm coverage details with Ontario Health Insurance Plan (OHIP) or Dr. Haney's office, especially for subspecialty care.

Do I need a referral to see Dr. Haney, a Pediatrician?

For a general Pediatrician, you may be able to book an appointment directly for your child, particularly if Dr. Haney is accepting new patients or for newborn care. However, if Dr. Haney is a pediatric subspecialist (e.g., a Pediatric Cardiologist or Developmental Pediatrician), a referral from your child's family doctor or a general pediatrician is usually required for services to be covered by Ontario Health Insurance Plan (OHIP). It's best to check with Dr. Haney's clinic directly regarding their new patient and referral policies. You may be able to book an appointment directly, especially if the practice is accepting new patients, or for newborn care.

How involved can parents be in their child's healthcare with a Pediatrician?

Dr. Haney believes in family-centered care, which means parents and caregivers are essential partners in a child's healthcare team. She encourages open communication, welcomes your questions and concerns, and will involve you in all decisions regarding your child's health and treatment. Your insights into your child's behavior, symptoms, and daily life are invaluable for providing the best possible care.

When should I take my child to see Dr. Haney if they are sick?

You should contact Dr. Haney's office if your child has symptoms that concern you, such as a high or persistent fever (especially in infants), difficulty breathing or rapid breathing, signs of dehydration (e.g., dry mouth, few wet diapers), severe pain, vomiting or diarrhea that is persistent or severe, a rash you're unsure about, unusual lethargy or irritability, or if your child just doesn't seem like themselves. The clinic staff can help determine if your child needs to be seen and how soon. For emergencies, always go to the nearest emergency department or call 911.

What can I expect during my child's first visit or a well-child visit with a Pediatrician?

During your child's first visit or a routine well-child check-up with Dr. Haney, She will conduct a thorough physical examination, measure your child's growth (height, weight, head circumference for infants), and discuss developmental milestones. She will also review immunization records, talk about nutrition, sleep, safety, and behavior appropriate for your child's age. This is an excellent opportunity for you to ask any questions you have about your child's health or development. These visits are key to preventive care and building a strong relationship with your child's doctor.

When and how does a child transition from a Pediatrician to an adult care physician?

The transition from pediatric to adult healthcare typically occurs between the ages of 18 and 21, though it can vary based on individual needs and local practices. Dr. Haney will work with your adolescent and family to plan for this transition, especially if your child has ongoing or complex health needs. This process involves discussing the importance of continued care, helping to identify a suitable adult care physician (like a family doctor or adult subspecialist), and ensuring a smooth transfer of medical information and care responsibilities.

McMaster University
3950 14th Avenue, Health Sciences Center
Markham, ON L3R 0A9

Phone: (905) 305-1700 | Fax: (905) 305-1706

The facility is wheelchair accessible and aims to be welcoming to children and families.

Dr. Haney is a licensed Pediatrician regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Regulated Health Professions Act, 1991 and Medicine Act, 1991 in ON. Dr. Haney may accept new patients directly for general pediatric care or via referral, depending on clinic policy. Please contact the clinic for information on new patient registration and any referral requirements for services covered by the provincial health plan.

Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Haney-Marie-Marthe-Isabel/0050811-64790