Dr. Siobhan Emily Valerie Mark – Obstetrician and Gynecologist (OBGYN) | Mississauga, ON

Specializing in Obstetrics and Gynecology, Dr. Siobhan Emily Valerie Mark (an OBGYN) is committed to delivering personalized and evidence-based care to patients in Mississauga, fostering a supportive healthcare environment. Practicing at a clinic and/or hospital setting in Mississauga, ON, she offers accessible and high-quality care to the community. The facility is located in the Churchill Meadows neighborhood of Mississauga, conveniently situated near the University of Toronto Mississauga (UTM). It is easily accessible via MiWay (Mississauga Transit). The facility is wheelchair accessible, ensuring comfort and accessibility for all patients. Paid parking options are close by, providing convenience for those arriving by car.

Dr. Mark graduated with a Medical Degree from Queen's University in 2007 in Canada. She has been practicing as a specialist in Obstetrics and Gynecology (OBGYN) for over 12 years, since 2012. She is certified as a Royal College of Physicians and Surgeons of Canada (RCPSC) Specialist, demonstrating her expertise and commitment to maintaining high standards of care.

Her clinical philosophy emphasizes patient-centered care, shared decision-making, and evidence-based practice. Dr. Mark is dedicated to improving women's health in Mississauga through compassionate, respectful, and comprehensive care. She speaks English fluently and strives to create a welcoming environment where patients feel valued and understood.

Dr. Siobhan Mark provides care for a wide spectrum of women's health issues, including:

Infertility and Reproductive Health

• Ovulatory Dysfunction (e.g., Anovulation, Oligo-ovulation): Problems with ovulation (the release of an egg from the ovary), such as infrequent or absent ovulation, a common cause of infertility.
• Female Infertility Evaluation & Initial Management: Comprehensive assessment to identify potential causes of difficulty conceiving in women and initiation of basic treatments.
• Uterine Factors Affecting Fertility (e.g., Septum, Asherman's Syndrome): Structural abnormalities or conditions of the uterus that can interfere with implantation or pregnancy maintenance.

Pregnancy and Childbirth Related Conditions

• Preeclampsia & Hypertensive Disorders of Pregnancy: Pregnancy complications characterized by high blood pressure and signs of damage to other organ systems, often the liver and kidneys.
• Multiple Gestation (Twins, Triplets, etc.): Pregnancies involving more than one fetus, requiring specialized care and monitoring due to increased risks.
• Gestational Diabetes: Diabetes that develops during pregnancy, requiring careful monitoring and management to ensure health for both mother and baby.

Screening and Preventative Care

• Sexually Transmitted Infections (STIs) Screening & Counseling: Testing for common STIs based on risk factors and symptoms, along with counseling on prevention and safe practices.
• Breast Cancer Screening Awareness & Clinical Breast Exams: Performing clinical breast exams and advising on mammography guidelines and breast self-awareness for early detection.
• Bone Density Health (Osteoporosis Screening Referrals): Assessing risk factors for osteoporosis and referring for bone density screening (DEXA scan) when appropriate, especially around menopause.

This list highlights some common conditions managed within Obstetrics and Gynecology and is not exhaustive. For personalized advice regarding your specific health concerns, please schedule a consultation with Dr. Siobhan Mark or your primary care physician for a comprehensive evaluation and appropriate referral if needed.

• Management of Common Pregnancy Complications: Diagnosis and treatment of conditions such as nausea and vomiting of pregnancy (hyperemesis gravidarum), gestational diabetes (in conjunction with specialists if needed), hypertensive disorders, and preterm labor risk assessment and prevention strategies.
• Comprehensive Prenatal Care & Risk Assessment: Regular check-ups, monitoring, and guidance throughout pregnancy to ensure maternal and fetal well-being, including initial risk assessment, ultrasound referrals, genetic screening discussions, and prenatal testing.
• Annual Gynecological Exams & Well-Woman Care: Routine check-ups including pelvic exams, clinical breast exams, preventative health screenings, and discussion of overall gynecological health.
• Surgical Management of Pelvic Organ Prolapse (e.g., Colporrhaphy, Sacrocolpopexy): Reconstructive surgical procedures to correct the descent of pelvic organs like the bladder, uterus, or rectum, often utilizing native tissue repair or mesh augmentation.
• Basic Infertility Workup & Ovulation Tracking: Initial investigations into causes of infertility and guidance on tracking ovulation.
• Endometrial Ablation & Resection: Minimally invasive procedures to destroy or remove the lining of the uterus (endometrium) to treat heavy menstrual bleeding in appropriate candidates.
• Hysterectomy (Abdominal, Vaginal, Laparoscopic, Robotic-Assisted): Surgical removal of the uterus, performed through various approaches including minimally invasive techniques, depending on the medical indication and patient factors.

Note: This list may provide an overview of common services in Obstetrics and Gynecology. Dr. Mark provides a wide array of diagnostic, therapeutic, and surgical options tailored to individual patient needs within women's health, pregnancy, and childbirth. Specific services offered can be confirmed by contacting the clinic.

All medical and surgical services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO). A referral may be required for insured services.

Dr. Mark practices at a modern clinic located in the Churchill Meadows neighborhood of Mississauga. The clinic is situated within a well-equipped hospital setting, ensuring access to comprehensive healthcare resources. It is conveniently positioned near the University of Toronto Mississauga (UTM), making it accessible for university staff and students. Patients can easily reach the clinic via MiWay (Mississauga Transit), with bus stops nearby for public transportation. The facility is wheelchair accessible, providing ease of access for individuals with mobility challenges. Paid parking options are available close by, offering convenience for patients arriving by car. The clinic’s location emphasizes accessibility, comfort, and high-quality care for women of all ages in the Mississauga community.

Are services from Dr. Mark, an Obstetrician and Gynecologist, covered by Ontario Health Insurance Plan (OHIP) in ON?

Medically necessary consultations, prenatal care, delivery, gynecological surgeries, and diagnostic procedures performed by a licensed Obstetrician and Gynecologist like Dr. Mark are generally covered by Ontario Health Insurance Plan (OHIP) in ON when you have a valid referral from your family doctor or another referring physician. Some elective procedures, certain fertility treatments, or non-medically indicated services may not be covered. It's always recommended to confirm specific coverage details with Ontario Health Insurance Plan (OHIP) or the clinic.

Do I need a referral from my family doctor to see Dr. Mark, an Obstetrician and Gynecologist?

Yes, for services to be covered by your provincial health plan (Ontario Health Insurance Plan (OHIP)), a referral from your family physician or another specialist is typically required to see an Obstetrician and Gynecologist like Dr. Mark for most consultations and treatments. This ensures coordinated care. Some specific services or clinics (e.g., some sexual health or contraception clinics) might have different access pathways, but for ongoing obstetrical or gynecological care, a referral is standard. Please check with Dr. Mark's office or your referring doctor.

What can I expect during my first prenatal visit?

Your first prenatal visit with Dr. Mark is usually quite comprehensive, typically scheduled around 8-10 weeks of pregnancy. It will involve a detailed review of your medical history, your partner's medical history (if applicable), and any previous pregnancies. Dr. Mark will likely perform a physical exam, which may include a pelvic exam, confirm your pregnancy (often with an ultrasound referral), estimate your due date, and discuss important aspects of a healthy pregnancy such as nutrition, lifestyle, prenatal vitamins, and options for genetic screening and prenatal testing. You'll also have the opportunity to ask any questions you may have.

Does Dr. Mark discuss or offer the HPV vaccine?

The Human Papillomavirus (HPV) vaccine is highly effective in preventing infections with HPV types that cause most cervical cancers, as well as other anogenital and oropharyngeal cancers. Dr. Mark can discuss the benefits of the HPV vaccine, current recommendations for different age groups (including catch-up vaccination for adults), and can either provide the vaccine or refer you to where it can be obtained, depending on clinic services and provincial programs.

I have uterine fibroids. What treatment options might Dr. Mark suggest?

Treatment for uterine fibroids depends on their size, number, location, and the severity of your symptoms (like heavy bleeding or pain), as well as your reproductive goals. Options range from watchful waiting for asymptomatic fibroids, to medications (hormonal therapies to manage symptoms), to minimally invasive procedures (like uterine artery embolization - often by interventional radiology), or surgical removal of fibroids (myomectomy) or the uterus (hysterectomy). Dr. Mark will help you decide the best course of action.

What is an IUD insertion like? Does Dr. Mark perform this?

Yes, Dr. Mark can perform IUD (Intrauterine Device) insertions in the office. The procedure involves placing a small, T-shaped device into your uterus for long-acting, reversible contraception. During the insertion, you might experience some cramping, similar to period pains. Dr. Mark can discuss pain management options, such as taking an over-the-counter pain reliever beforehand or using local anesthetic in some cases. The actual insertion usually takes only a few minutes.

What does an Obstetrician and Gynecologist (OBGYN) like Dr. Mark do?

An Obstetrician and Gynecologist (OBGYN), like Dr. Mark, is a medical doctor specializing in women's reproductive health, pregnancy, and childbirth. They provide care throughout a woman's life, including prenatal care, labor and delivery, postpartum support, diagnosis and treatment of gynecological conditions (e.g., infections, fibroids, endometriosis, menstrual disorders), family planning, contraceptive management, preventative screenings like Pap tests, and management of menopausal symptoms.

Suite 2100, 2000 Credit Valley Road
Mississauga, ON L5M 4N4

Phone: (905) 820-8748 | Fax: (866) 820-5299

The facility is wheelchair accessible.

Dr. Mark is a licensed Obstetrician and Gynecologist regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Regulated Health Professions Act, 1991 and Medicine Act, 1991 in ON. A referral from your family physician or another qualified healthcare provider is typically required for provincially insured consultations and treatments.

Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Mark-Siobhan-Emily-Valerie/0242570-86218