The Best of Dermatology 

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Spectrum Dermatology of Seattle

At Spectrum Dermatology of Seattle, we are dedicated to providing exceptional dermatologic care along with the kind of care experience we would wish to have ourselves - one that is pleasant, efficient, and respectful. We are a small, dermatology-only office, allowing us to focus on you and your skin. Our excellent, caring staff share a passion for dermatology and patient care, and are beloved by our patients. Our board-certified physician and highly trained skin specialists offer a comprehensive range of medical and cosmetic dermatology services to patients of all ages, including skin cancer diagnosis and treatment, acne, hair loss, psoriasis, rashes, and cosmetic services, all in a clean, modern, boutique setting.

Introducing our new Physician's Assistant

Tim Cruickshank


Tim specializes in medical and aesthetic dermatology, with an emphasis in acne, skin cancer screenings, cosmetic anti-aging strategies including lasers and injectables, and hair restoration for men and women.

Patient Testimonials

I went to the Dermatologist's office to get a full body check and get some help with cystic acne and scarring. Tim was great to work with and made me feel comfortable even though I was getting moles all over my body checked out. When it came to the acne and scars Tim was very informative on what was happening and causing my problems. He provided solutions that made sense and explained in detail how they would help. I personally appreciate when my medical providers take the time to tell me what's happening and Tim made me feel like I was informed.

~ Carrie P.

Spectrum Dermatology is top notch, I have seen at least half a dozen dermatologists over the years and am so happy to have found Dr. Zook. She is compassionate, intelligent, thorough, and so enjoyable to work with. I am definitely sticking with her.

~ Greg J.

I've seen Tim for many different concerns including Peri-oral Dermatitis, acne, and scalp dandruff. Tim is calm and professional and really listens to his patients. He took the time to educate me on my conditions and made sure I understood everything before I left his office.

~ Alyssa C.

Dr. Zook centers her practice on the concerns and needs of her patients. She determines the best course of treatment only after she has completed a thorough consultation and examination. After seeing her, I referred my mother to Dr. Zook so we are now a two-generation patient family!

~ Jill N.

From Dr Zook's Blog

February 22, 2021
Why choose pharmaceutical vs cosmetic grade skin care?

Hint: it's not cost. Pharmaceutical grade skin care products are regulated by the FDA in the same way as medications. This means the ingredients must be 99.9% pure, be scientifically proven to do what is claimed, and not contain fillers or impurities. Pharmaceutical grade skin care products are sold only through medical clinics or directly […]

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December 22, 2020
Happy Holidays from all of us!

Well, it's been quite a year. 2020 has brought unexpected challenges for everyone, and as a medical practice and a small business, we are no exception. Reflecting on the year, I am incredibly grateful for you, our patients. Your visits and kind words have kept our spirits up, you’ve sent us your friends and family […]

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September 2, 2020
Introducing our new Physicians Assistant, Tim Cruickshank

Tim Cruickshank is a Nationally Certified Physician Assistant (PA-C) specializing in medical and aesthetic dermatology with an emphasis in cosmetic anti-aging strategies, hair restoration and teen and hormonal acne treatments. Tim works closely with Dr. Zook, coordinating and managing the care of our patients, and ensuring high quality care and safety at all times. Tim […]

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American Academy of DermatologyAmerican Board of DermatologyAmerican Medical AssociationThe International Society For The Study Of Vulvovaginal DiseaseNational Vulvodynia AssociationWashington Dermatology AssociationWomen's Dermatologic Society
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