Dr. Marisa Grace Ponzo – Dermatologist | North York, ON

Dr. Marisa Grace Ponzo is a dedicated Dermatologist specializing in the diagnosis and treatment of a wide array of conditions affecting the skin, hair, and nails in adult patients, and may see older children for certain conditions. Practicing at a dermatology clinic in North York, ON, she is a key member of the local medical community. She provides comprehensive medical and surgical dermatological care for a wide variety of skin, hair, and nail conditions, including acne, eczema, psoriasis, and skin cancer detection. Her practice is committed to delivering evidence-based dermatological care in a comfortable and professional environment, utilizing modern diagnostic tools and therapeutic techniques.

Dr. Ponzo graduated with a Medical Degree from McGill University Faculty of Medicine and Health Sciences in Canada. She has over 7 years of experience practicing as a Dermatologist since 2017. She is recognized as a RCPSC Specialist by the College of Physicians and Surgeons of Ontario (CPSO), holding license number 97617. Her ongoing commitment to professional development ensures she stays current with the latest advancements in skin care and treatment modalities.

Her clinical philosophy centers on providing personalized, evidence-based skin care, emphasizing patient education on skin health and prevention. Dr. Ponzo is dedicated to early detection of skin cancer and other serious conditions, ensuring timely intervention. She strives to offer compassionate, comprehensive care tailored to each patient’s unique needs, in English, to residents of North York and surrounding areas.

Dr. Marisa Ponzo diagnoses and treats a wide range of skin, hair, and nail conditions, including:

Inflammatory & Immune-Mediated Skin Conditions

• Eczema (Atopic, Contact, Seborrheic, Discoid, Asteatotic): A group of chronic conditions causing itchy, inflamed, and often dry skin. Types vary in appearance and common locations, triggered by genetics, allergens, irritants, or other factors.
• Rosacea (Erythematotelangiectatic, Papulopustular, Phymatous, Ocular): A common skin condition that causes redness, visible blood vessels, flushing, and sometimes small, red, pus-filled bumps on the face. Can also affect the eyes.

Skin Cancers, Precancerous Lesions & Benign Growths

• Skin Cysts (Epidermoid, Pilar, Sebaceous): Benign, sac-like growths under the skin containing fluid or semi-solid material. May become inflamed or infected and sometimes require removal.
• Basal Cell Carcinoma (BCC): The most common type of skin cancer, typically slow-growing and arising from sun-exposed skin, appearing as a pearly or waxy bump, flat flesh-colored or brown scar-like lesion, or a bleeding/scabbing sore.

Hair & Scalp Disorders

• Androgenetic Alopecia (Male/Female Pattern Hair Loss): A common hereditary form of hair loss characterized by a receding hairline and thinning crown in men, and diffuse thinning over the top of the scalp in women.
• Alopecia Areata (Patchy, Totalis, Universalis, Ophiasis): An autoimmune disorder causing hair to fall out, often in round patches. Can affect scalp, beard, eyebrows, eyelashes, or entire body.
• Cicatricial Alopecia (Scarring Alopecia - e.g., Lichen Planopilaris, Frontal Fibrosing Alopecia, CCCA): A group of rare disorders that destroy hair follicles, replace them with scar tissue, and cause permanent hair loss. Examples include Lichen Planopilaris, Frontal Fibrosing Alopecia, and Central Centrifugal Cicatricial Alopecia.

This list is not exhaustive. For personalized advice regarding your specific dermatological condition, please consult with Dr. Marisa Ponzo.

• Microneedling (Collagen Induction Therapy) & Radiofrequency (RF) Microneedling: Procedures that create controlled micro-injuries in the skin to stimulate collagen and elastin production, improving skin texture, reducing scars (acne, surgical), fine lines, and stretch marks. RF Microneedling combines microneedling with radiofrequency energy for enhanced skin tightening and rejuvenation.
• Eczema (Atopic, Contact, Seborrheic Dermatitis) Management: Treatment plans for various types of chronic inflammatory skin conditions like eczema, focusing on reducing inflammation, relieving itch, restoring skin barrier function, and preventing flare-ups with topical steroids, non-steroidal topicals, phototherapy, and systemic agents including biologics.
• Excision of Benign Lesions (Moles/Nevi, Cysts, Lipomas, Skin Tags, Seborrheic Keratoses): Surgical removal of non-cancerous skin growths for medical reasons (e.g., irritation, inflammation) or cosmetic purposes, with pathological examination if indicated.
• Mohs Micrographic Surgery for High-Risk Skin Cancers: Specialized surgical technique for removing complex or high-risk skin cancers (especially on the head, neck, hands, feet, genitals) with maximal tissue preservation by examining 100% of the surgical margin intraoperatively.
• Scar Revision Surgery & Keloid Treatment (Surgical, Intralesional Injections): Procedures to improve the appearance of scars or treat problematic keloid scars, which may involve surgical excision, steroid injections, or other modalities.
• Platelet-Rich Plasma (PRP) Therapy (for Skin Rejuvenation & Hair Loss): Utilizing a concentration of a patient's own platelets to promote tissue repair and regeneration, used for facial rejuvenation (e.g., with microneedling) and to stimulate hair growth in certain types of alopecia.
• Skin Cancer Screening & Mole Mapping (Dermoscopy & Digital Monitoring): Thorough examination of the skin for suspicious lesions, including moles and other growths. Utilizes dermoscopy for enhanced visualization and may involve digital mole mapping for high-risk patients to track changes over time.

Note: This list provides a general overview of medical and potentially some cosmetic services. Treatment plans are highly individualized. Discuss with Dr. Ponzo for care relevant to your specific condition. Coverage for services varies; medically necessary treatments are typically covered by provincial health plans, while cosmetic procedures are usually self-pay.

All medical and surgical services (if applicable) are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO) and relevant dermatological care guidelines. Contact the clinic or your referring physician regarding new patient intake and referral processes.

Dr. Ponzo's dermatology practice is situated within a modern clinic in North York, conveniently located near central North York neighborhoods. The facility is easily accessible via local public transit, with multiple bus stops and subway stations within walking distance. The area surrounding the clinic features several points of interest, including community centers and parks, making it a welcoming environment for patients. The clinic is wheelchair accessible, ensuring ease of entry for all visitors. Paid parking options are conveniently located nearby, providing additional accessibility for patients arriving by car. The practice aims to serve the local community with comprehensive dermatological care in a comfortable and accessible setting.

Are consultations and dermatological treatments with Dr. Ponzo, a Dermatologist, covered by Ontario Health Insurance Plan (OHIP) in ON?

Medically necessary consultations with a licensed Dermatologist like Dr. Ponzo, diagnostic procedures (e.g., skin biopsies), and treatments for provincially insured skin conditions (e.g., psoriasis, severe eczema, skin cancer, infections) are generally covered by Ontario Health Insurance Plan (OHIP) in ON when a referral from a family doctor is in place. Purely cosmetic procedures (e.g., Botox for wrinkles, most laser hair removal, fillers for aesthetic enhancement) are typically not covered and are self-pay. It's crucial to discuss coverage specifics for any proposed treatment with Dr. Ponzo's office or Ontario Health Insurance Plan (OHIP) beforehand, especially if there's a potential cosmetic component.

Do I need a referral to see Dr. Ponzo, a Dermatologist?

Yes, for medically necessary dermatological care covered by the provincial health plan, a referral from your family physician or another specialist (e.g., an ER doctor for an acute issue) is almost always required to see a Dermatologist such as Dr. Ponzo. This ensures coordinated care and that your visit is appropriate for specialist assessment. Some dermatologists may offer consultations for uninsured cosmetic services without a referral, but these would be a direct cost to you. Always check with the clinic regarding their specific referral policy.

What kind of sunscreen does Dr. Ponzo recommend?

While specific brand recommendations can vary, Dr. Ponzo would likely advise choosing a broad-spectrum sunscreen that protects against both UVA and UVB rays, with an SPF (Sun Protection Factor) of 30 or higher. For daily use, a lighter formulation might be preferred, while for prolonged outdoor activities, water-resistant sunscreen is important. Consider your skin type: individuals with sensitive skin might prefer mineral-based sunscreens containing zinc oxide or titanium dioxide. The most important thing is to apply sunscreen generously and reapply it every two hours, or more often if swimming or sweating. Dr. Ponzo can provide personalized recommendations based on your skin type and lifestyle during your consultation.

What are the general risks and benefits of cosmetic procedures Dr. Ponzo might offer?

The benefits of cosmetic procedures offered by a qualified Dermatologist like Dr. Ponzo can include improvement in skin appearance, texture, tone, reduction of wrinkles or scars, and enhanced self-confidence. However, all procedures carry some risks. Common risks for minimally invasive cosmetic treatments (like injectables or lasers) can include temporary redness, swelling, bruising, pain, or itching at the treatment site. Less common risks might include infection, allergic reaction, changes in skin pigmentation, or unsatisfactory results. More invasive procedures have different risk profiles. Dr. Ponzo will discuss the specific risks, benefits, and expected outcomes of any proposed cosmetic procedure in detail during your consultation to help you make an informed decision.

If Dr. Ponzo recommends phototherapy, what does that involve?

Phototherapy, also known as light therapy, is a medical treatment where your skin is exposed to specific wavelengths of ultraviolet (UV) light under strict medical supervision. Dr. Ponzo might recommend it for conditions like psoriasis, eczema, vitiligo, or cutaneous T-cell lymphoma. Treatments are typically given 2-3 times a week in a specialized light cabinet or with a handheld device for smaller areas. The type of UV light (e.g., Narrowband UVB, PUVA) and treatment duration are carefully controlled. It works by reducing inflammation and slowing down the rapid growth of skin cells. You'll be given specific instructions, including eye protection.

3-139 Sheppard Ave E, Mailbox 12P
North York, ON M2N 3A6

Phone: (416) 222-7546

The facility is wheelchair accessible.

Dr. Ponzo is a licensed Dermatologist 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 a family physician is typically required for consultations with Dr. Ponzo for medically necessary services covered by the provincial health plan. Cosmetic consultations may have different requirements.

Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Ponzo-Marisa-Grace/0282674-97617