An affiliate of DOCS Dermatology PATIENT PORTAL PAY BILL ABOUT
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Search for an expert practitioner specialized in helping you with your skincare needs.
Jennifer Phillips, APRN
Brian W. Russ, MD
Danielle Schwartz, FNP-C
Sarah Serrao, FNP-C
Rocco T. Serrao, MD
Abby Sipe, NP-C
Cassie Thieman, PA-C
Samantha Trout, PA-C
Srikanth Vangapandu, PA-C
Shannon N. Verma, MD
Megan Whitehouse, PA-C
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Find a Location
Search for a convenient office location where you can access our services quickly and easily.
Oxford Office
Troy Office
West Chester
Wilmington Office
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Medical Services
We have a wide range of services designed to address your specific skincare needs.
Conditions Acne
Actinic Keratosis
Angiomas and Hemangiomas
Basal Cell Carcinoma
Eczema (Atopic Dermatitis)
Hair Loss & Alopecia
Skin Cancer
Spider Veins
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Treatments & Procedures Biologics & Topical Medications
Excisions & Biopsies
Mohs Surgery
Mole Removal
Photodynamic Therapy (PDT)
Skin Cancer Check
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Cosmetic Services
Our cosmetic services are tailored to remedy your skincare needs.
Conditions Acne
Brown Spots and Discoloration
Crows Feet
Dark Eye Circles
Double Chin
Enlarged Pores
Lines and Wrinkles
Sagging Skin
Skin Pigmentation
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Treatments & Procedures Botox® & Dysport®
Chemical Peels
CO2 Fractional Laser Skin Resurfacing
Facial Fillers
Hair Removal
IPL® Photofacial
Skin Rejuvenation
Tattoo Removal
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dermatology medical practice logo
Cassie Thieman PA-C
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909 Google Reviews
Areas of Interest
Acne Treatment
Acne is a common – and treatable – skin condition that occurs when pores become clogged, resulting in whiteheads, blackheads, cysts or red bumps. We treat them all – fast!
Biologic & Topical Treatments
Biologics are targeted medicines made from living organisms. Topicals include creams, ointments, or gels. We help find the best match for your skin.
Brown Spots & Discoloration
Non-cancerous spots on areas of the body exposed to UV light (like the sun). We can treat your spots with chemical peels, microneedling, laser resurfacing, and IPL therapy.
Chemical Peels
Exfoliate the outermost layer of skin to help hyperpigmentation, sun damage, lines and wrinkles, acne scars, and more. Trust our experts to safely administer the ideal peel.
Eczema (Atopic Dermatitis)
Eczema causes dry, scaly skin and blisters that result in itching and pain. We use the latest medical advances to bring patients relief.
Psoriasis Treatment
Psoriasis is a chronic autoimmune disease characterized by patches of red, pink or purple skin and dry, itchy skin. We treat psoriasis across all skin types and severities.
Seborrheic Dermatitis
Seborrheic dermatitis causes scaly patches of inflamed skin, most typically seen on the scalp. While there isn't a cure, we offer treatment to lessen and/or clear your rash.
Skin Cancer Screenings
Skin cancer is the most common cancer in the U.S. Regular screenings with your dermatologist find cancer earlier, minimizing risk of spread. Schedule your annual exam now!
Wart Treatment
Common warts, flat warts and plantar warts are caused by strains of the human papillomavirus (HPV) and appear on hands, face, feet or genitals. Schedule now to get treatment.
I am grateful for the opportunity to care for people. I value getting to know my patients, listening to their concerns, and being thorough in my care. I believe in patient-centered care and joint decision-making. Collaborating with supervising physicians and other healthcare providers, if necessary, and including the patient in decision-making allows me to do what is best for my patient's health and well-being.
Cassie Thieman, PA-C
About Your Provider
Cassie is a board-certified physician assistant specializing in dermatology. She received her master's degree in social work at Loyola University in Chicago. She soon realized her passion for medicine after briefly working in medical social work.

Cassie completed her Master of Medical Science to become an assistant physician at the Yale New Haven School of Medicine in New Haven, CT, where she received comprehensive medical training. This solid medical foundation allows her to practice diverse aspects of dermatology. Cassie diagnoses and treats many dermatologic conditions, such as rashes, psoriasis, eczema, acne, and warts. She also routinely diagnoses and treats skin cancers and performs thorough skin exams for cancer surveillance. She works closely with her supervising physicians if needed. Cassie is a member of the American Association of Physician Assistants, the Ohio Association of Physician Assistants, the Society of Dermatology Physician Assistants, and the Ohio Dermatology Association. When not practicing dermatology, Cassie enjoys reading, cooking, being active outdoors and spending time with her husband and four children.
MMSc in Physician Assistant Studies, Yale School of Medicine
45 S Stanfield Rd
Suite 102
Troy, OH 45373
Phone: (937) 339-8380
Fax: (937) 335-4096
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909 Google Reviews