Meet Our Team
Dedicated Dermatology Professionals You Can Trust
At Dermatology Associates of Ithaca, our team is committed to providing thoughtful, patient-centered dermatologic care. With decades of combined experience, our providers and clinical staff work collaboratively to deliver exceptional medical, cosmetic, and procedural skin care in a welcoming and refined environment.
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Meet Your Care Team
Dedicated Dermatology Professionals You Can Trust
Our experienced providers are dedicated to diagnosing and treating a wide range of skin conditions with precision, compassion, and respect. Each member of our team is focused on building trusted relationships and delivering personalized care tailored to each patient’s needs.
Ithaca and Cortland Offices
Josephine C. McAllister, MD, FAAD
Dermatologist & Founder
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Cortland Office
Thomas Brown, PA-C
Physician Assistant
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Ithaca Office
David Mizro, PA-C, Diplomate Fellow, SDPA
Physician Assistant
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Ithaca and Cortland Offices
Mark Wernham, PA-C
Physician Assistant
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Ithaca Office
Catherine Thompson, PA-C
Physician Assistant
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Ithaca and Cortland Offices
Donna Brigham, NP
Nurse Practitioner
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Ithaca and Cortland Offices
Theresa Keller, NP
Nurse Practitioner
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Why Choose Our Providers & Clinic
At Dermatology Associates of Ithaca, we believe exceptional dermatologic care is built on expertise, compassion, and trust. Our practice is thoughtfully designed to support both clinical excellence and patient comfort.
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What Sets Us Apart
Experienced, Highly Trained Providers
Our team brings decades of combined experience across medical, cosmetic, laser, and procedural dermatology.
Patient-Centered Care
We take the time to listen, educate, and involve patients in their care decisions, ensuring every treatment plan is personalized.
Collaborative Team Approach
Our providers work closely together, allowing patients to benefit from a broad range of perspectives and expertise.
Comprehensive Services in Each Location
From medical dermatology to cosmetic and spa services, we offer a full spectrum of care tailored to your skin’s needs.
Comfortable, Convenient Offices
Our Ithaca and Cortland locations are designed to be welcoming, efficient, and easily accessible to our patients.
Our Commitment to Excellence
Our providers pursue ongoing education and stay current with advancements in dermatologic care to ensure our patients receive safe, effective, and evidence-based treatments.
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Contact Us
Have a question or ready to schedule? We’re here to help.