The University of Ottawa Health Services is proud to have paediatricians part of its team. The first few years of your child’s life are very important and UOHS is happy to take care of your child’s health.


What to Expect

Offered services for following issues. Please note that the below list is non-exhaustive.

  • Ongoing Primary Care (Offered by some UOHS paediatricians)
  • Newborn’s First Appointment
  • Concurrent Premature Infant Care
  • Sleeping
  • Feeding Intolerance/Refusal
  • Infant Colic and Gastroesophageal Reflux
  • Behavioral Difficulties
  • Developmental Delay
  • Educational/School Difficulties
  • Anxiety
  • Depression
  • ADHD
  • Autism Spectrum Disorder Assessment
  • Asthma
  • Neurologic Issues
  • Childhood Obesity
  • Endocrine Issues

Paediatricians at UOHS

Paediatricians at UOHS are certified by the Royal College of Physicians and Surgeons. They have expertise in many areas. They work closely with the family care provider through their consultation letters providing them with recommendations and updates of the child’s progress. They communicate and collaborate with other health care professionals (medical specialists, audiologists, physiotherapists, occupational therapists, speech therapists, psychologists, schools, and CHEO) to provide the best and most comprehensive care.

Dr. Derek Rajakumar, Director of UOHS Paediatric Department, Pediatrician, Diploma in Tropical Medicine and Hygiene, and Associate Professor

Dr. Derek Rajakumar received a Bachelor of Science Degree in Biochemistry before graduating from medical school and completing his paediatric residency at the University of Saskatchewan. He then enrolled in a two year Fellowship program at CHEO (Children’s Hospital of Eastern Ontario), specializing in paediatric infectious diseases, and completed a Diploma in Tropical Medicine & Hygiene at the London School of Hygiene & Tropical Medicine in the UK.  Dr. Rajakumar has been practicing general paediatrics since 2012 and currently works as a consulting paediatrician and travel medicine physician at UOHS.  He is also a general paediatrician in the Newborn and Special Care Nursery at The Ottawa General and Civic Hospitals providing enhanced level II care for premature infants 32-37 weeks gestation, and term infants.

Dr. Elizabeth Esselmont, paediatrician

Dr. Elizabeth Esselmont graduated from the University of Manitoba Faculty of Medicine in 2011.  She subsequently completed her Pediatrics Residency at CHEO through the University of Ottawa.  She works as a consulting pediatrician seeing children for a variety of pediatric issues.  Dr. Esselmont also works at The Ottawa Hospital General Campus providing newborn care and teaching medical students.  She has an academic appointment as a lecturer through the University of Ottawa.

Dr. Radmila Jovanovic, paediatrician

Dr. Radmila Jovanovic graduated from the Faculty of Medicine at the University of Belgrade in Serbia, where she subsequently completed her specialty training in Paediatrics in 1992. After immigrating to Canada, she worked as a researcher in the areas of paediatric Mental Health and Endocrinology. Through this work, she enrolled in a Clinical Fellowship in Pediatric Endocrinology at CHEO. In 2005, she successfully completed the Practice Ready Assessment for International Specialists in Paediatrics at CHEO. Since then, she has been working at CHEO in the Endocrinology Department as a diabetologist.  From 2006, she has worked at the Winchester District Memorial Hospital (WDMH) as a consulting paediatrician, and general paediatrician in the Newborn Care Nursery, providing care for term infants.

Dr. Jovanovic has an academic affiliation with the University of Ottawa as a PTA Lecturer and Clinician-Teacher.

Dr. Han Na Kang, paediatrician

Dr. Han Na Kang graduated from Bachelor of Science with Honors at University of Toronto in 2008. In 2012, she graduated Medical School at University of Toronto and completed Paediatrics residency program at Northern Ontario School of Medicine in 2016. She is currently working as a Consulting Pediatrician as well as Primary Care Pediatrician at UOHS. Dr. Kang also works at The Ottawa Hospital General Campus to provide newborn nursery care. She also provides enhanced level II NICU care at Special Care Nursery of The Ottawa Hospital Civic Campus. Dr. Kang has an academic appointment as a lecturer through the University of Ottawa and teachers medical students at The Ottawa Hospital General and Civic Campus.

Dr. Ronald Tam, paediatrician

Dr. Ron Tam is a general paediatrician who has been in practice since 1996.  He received his medical degree from the University of Manitoba, and completed his pediatric residency at the Children’s Hospital of Eastern Ontario (CHEO).  Dr. Tam has been a staff paediatrician at CHEO Paediatric Emergency Department and an Assistant Professor of Paediatrics at the University of Ottawa since 1999.   His clinical interests are very broad; his areas of interest include respiratory, gastrointestinal and musculoskeletal disorders, and orthopaedic problems.  He is also fluent in Cantonese.

How to Access

Patients who are registered to a UOHS pediatrician can book or cancel an appointment by calling 613-564-3950 ext 450 or can cancel or request an appointment online.

The paediatricians see patients in consultation when referred by their family physician or primary care provider or by pediatric walk-in services when available. All referrals for children up to 17 years of age are accepted. Referrals can be sent to our clinic by physicians by fax at 613-564-6627.

Referrals for Quebec patients are accepted.

Book an appointment online 


Form Name Download
ADHD SNAP-IV Questionnaire PDF
CSBC Infant-Toddler Checklist PDF
Modified Checklist for Autism in Toddlers PDF
CAST Questionnaire PDF
Mental Health Adolescent Anxiety Scale PDF
Mental Health Child Anxiety Scale PDF
Mental Health Parent Anxiety Scale PDF
Anaphylaxis Emergency Plan PDF



Adolescent Health
Behavior/Mental Health
Parenting & Difficult Behavior

Bilingual Parent Support Line - 613-565-2467

Go Family

Triple P



Documents Download
Temper Tantrums - Tips for Parents and Caregivers PDF
Temper tantrums: A Normal Part of Growing Up PDF
Sleeping Difficulties

Toronto Sleep Clinic

While you were sleeping

Documents Download
Principles of Sleep Hygiene in Children PDF
Sleep in Infants and Young Children PDF
Habits for Healthy Sleep PDF


Mental Health

Collaborative Mental Health Care

Centre psychosocial (seulement disponible en français)


Centre for interpersonal relationships


Recommended Books:

  • How to Win Friends and Influence People, author:  Dale Carnegie
  • How to Stop Worrying and Start Living, author:  Dale Carnegie
  • The Explosive Child, author: Ross W. Greene
Documents Download
Mental Health Resources PDF
Categories of Distorted Automatic Thoughts PDF


Games and Electronics
Infant/Child Development
Private Physiotherapy
Private Occupational Therapy
Documents Download
Private Occupational Therapy Services PDF
Private Therapy Services: Occupational Therapy PDF

Interprofessional Rehabitlitation Clinic


Speech Pathology Clinic and Stuttering Treatment Clinic: 117-1750 Russell Road, Ottawa, K1G 5Z6, tel: 613-526-7175

To read:

Your baby's speech and language skills from birth to 30 months

Documents Download
Speech-Language Pathologists in Private Practice PDF
Speech-Language Pathologists PDF


Feeding and Nutrition
Baby's First Foods
Documents Download
Nutrition Resources PDF
General Paediatric Care
Genital Health and Care
Documents Download
Contacts for Circumcision in the Community


Head Injury
Newborn and Infant Care

To read:

Blocked Tear Duct

Positional Plagiocephaly

Documents Download
Treatment of Nasolacrimal Duct Obstruction (Dacryostenosis) PDF
Activities to improve torticollis PDF
Infant Hearing Program under the Ministry of Child and Youth Services PDF



Obesity and Health Active Living
Documents Download
Patellofemoral Pain Syndrome PDF

To read:

Physical activity guidelines for children and adolescents


Oral Health and Care

Pediatric Dentists (Dr. Oriana)

Public Health
Skin Care and Health

The Society for Pediatric Dermatology

Fondation dermatite atopique

Documents Download
Wart Treatment PDF
Management of atopic dermatitis (eczema) PDF
Diaper rash PDF


News and Events

CBC, October 8th 2015: The Allergy Fix

CTV, June 16th 2016: 'Creeping sleepidemic': Almost a third of Canadian kids are sleep-deprived

The Toronto Star, August 11th 2016: How much screen time is too much for children?

Today's Parent, August 15th 2016: Study: Parents still aren't following safe sleep guidelines for babies

CBC, August 22nd 2016: No more than 6 teaspoons of added sugar per day for kids, experts say

The New York Times, August 23rd 2016: Brain Scans of Brazilian Babies Show Array of Zika Effects

The Journal of the Medical Association, September 20th 2016: Timing of Allergenic Food Introduction to the Infant Diet and Risk of Allergic or Autoimmune Disease

CTV News, September 21st 2016: Canada ranks in the middle of the pack in childhood activity race

The Washington Post, October 6th 2016: This doctor pioneered a way to treat stress in children, a startling source of future disease

AAP News, October 21st 2016: Policy addresses how to help parents manage young children's media use

CTV News, October 25th 2016: How autism in girls may help reveal the disorder's secrets

AAP News, October 2016: SIDS and Other Sleep-Related Infant Deaths: Updated 2016 Recommendations for a Safe Infant Sleeping Environment

CTV  News, December 20th 2016: Light exercise after concussion in kids, teens may halt prolonged symptoms: study

CTV  News, December 22nd 2016: Shorter treatment proves worse for kids with ear infections

CTV  News, January 5th 2017: Peanut foods for infants may prevent allergies: panel and Tips for giving babies peanut-based foods to prevent allergy

The New York Times, April 17th 2017: Too Clean for Our Children's Good?

CTV News, May 4th 2017: Toddlers' speech delays could be linked to screen time, study finds

CTV News, June 1st 2017: Doctors urged to encourage minimal screen use for toddlers and preschoolers

CBC News, October 10th  2017: Children with ADHD move twice as much when learning, brain tests show

TED Talks, December 2017: You aren't at the mercy of your emotions — your brain creates them

CBC News, January 26th 2018: Study links social media use, lack of shut-eye among youth

The Washington Post, March 26th 2018: ADHD brains in preschool children

HP Blog


Hours of Operation

Walk-in Clinic
100 Marie Curie, Ottawa

Monday: 8 AM - 8 PM
Tuesday: 8 AM - 8 PM
Wednesday: 8 AM - 8 PM
Thursday: 8 AM - 8 PM
Friday: 8 AM - 8 PM
Saturday: 10 AM - 2 PM
Sunday: 10 AM - 2PM

Booking instructions:

Please call the clinic at 613-564-3950 to schedule a same day telephone appointment with a walk-in clinic physician.  If after the telephone consultation an in-person visit is required, patients will be booked accordingly.


300-100 Marie Curie Pvt
Ottawa, ON
K1N 6N5

Tel: 613-564-3950

Fax: 613-564-6627

After Hours Access to Care

Patients registered with a family doctor at UOHS

In case of emergency, always dial 911. THAS connects you to a nurse who can provide medical advice, or, if appropriate, provide access to a family health team doctor or suggest that you go to emergency.


Patients not registered with a family doctor at UOHS – Ontario residents

In case of emergency, always dial 911. Telehealth Ontario is a free service that allows Ontario residents to speak to a Registered Nurse with their medical questions any time of the day or night. This could be when you're sick or injured but aren't sure if you need to see a doctor or can treat the situation at home.


Patients not registered with a family doctor at UOHS – Quebec residents

In case of emergency, always dial 911. Info-Santé 8-1-1  is a free and confidential telephone consultation service that puts you in contact with a nurse in case of a non-urgent health issue.

Info-Santé 811

Back to top