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Cutting-edge Diagnostic Tools,
Advanced Research,
Accurate & Rapid Results
Welcome to

Golden State Dermatopathology

Our full-service dermatopathology lab enables fast turnaround times, efficient communication, and cutting-edge diagnostics for patients and physicians. We provide a full range of pathology services to meet physicians’ needs. Every case submitted is seen by an experienced dermatopathologist, where physicians can consult directly and easily with our pathologists. We work closely with our colleagues to answer questions and assist them with recommendations and treatment decisions for the best patient outcomes.

Meet the team

Our Services

Primary Tissue Diagnoses

Turn diagnostic uncertainty into definitive answers with expert primary tissue diagnosis. When clinical examination alone cannot identify complex skin conditions, our specialized microscopic analysis provides the clarity needed for confident treatment decisions. Our board-certified dermatopathologists combine advanced laboratory techniques with decades of clinical expertise to deliver accurate diagnoses that directly improve patient outcomes and eliminate treatment delays.

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Slide Consultations

Access expert second opinions from board-certified dermatopathologists led by internationally renowned Dr. Timothy McCalmont. Our comprehensive consultation service combines advanced diagnostic techniques with direct pathologist accessibility, unlike many labs where specialists remain behind the scenes. With 100% digital capability, we enable virtual slide sharing and collaborative review, ensuring you receive expert analysis and clear communication for every challenging case.

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Slow Mohs

Achieve precision in both diagnosis and cosmetic outcomes with our meticulous Slow Mohs service. Perfect for challenging skin cancers in cosmetically sensitive areas, our staged excision approach ensures complete margin evaluation while preserving healthy tissue. Our board-certified dermatopathologists provide expert interpretation through a streamlined workflow featuring advanced barcode tracking, comprehensive reporting, and direct specialist consultation for optimal treatment planning.

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Immunohistochemistry

Transform diagnostic challenges into definitive answers with our advanced immunohistochemistry services. When standard microscopic examination isn't enough, our specialized testing reveals specific cellular markers that distinguish between similar conditions. Led by expert dermatopathologists including Dr. McCalmont, Dr. Green, and Dr. Wang, we provide the critical diagnostic clarity needed for confident treatment decisions in complex dermatological cases.

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Histochemical Stains

Uncover hidden diagnostic details with our comprehensive histochemical staining portfolio. Our specialized techniques reveal pathogens, cellular components, and tissue features that routine staining cannot detect. From infection identification to complex cellular analysis, our board-certified team uses advanced methods and collaborative consultation to deliver accurate, dependable results that guide effective treatment for challenging skin conditions.

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Molecular Testing

Transform complex cases into clinical clarity through cutting-edge molecular diagnostics. When traditional microscopic examination reaches its limits, our sophisticated molecular testing platforms analyze genetic material to identify the unique characteristics that define specific diseases. Perfect for challenging melanomas, lymphomas, and similar-appearing conditions, molecular testing provides the precision needed for personalized treatment planning and targeted therapy decisions.

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FISH Testing

Detect genetic abnormalities invisible to standard microscopy with advanced FISH testing. Our fluorescent in situ hybridization technology reveals the underlying genetic changes that drive disease development, transforming uncertain diagnoses into clear molecular evidence. With results available within days, FISH testing provides the objective confirmation needed when standard tissue examination cannot determine whether a lesion is benign or malignant.

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How to Send Us Pathology

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New to Golden State Dermatopathology

We will personally guide you through the process of transitioning your pathology services to our lab.

1. Setup A Call with Dr. Emily Green and Dr. Tim McCalmont to discuss options

2. Schedule Logistics (All specimen pick-ups are by courier)

3. Easy To Switch Over with EHR-Interfacing — Results automatically transferred to patient chart or client portal

How to Send Us Slide Consults

1. Submit a cover letter or Golden State Dermatopathology requisition form, patient insurance card, and any additional clinical info

2. Package slides and/or tissue block in plastic slide mailers and bubble wrap or padded envelope

3. Ship to Golden State Dermatopathology with FedEx

How to Send Us Wet Tissue

1. Place an EMA Order or Complete a GSD Requisition Form
including a copy of the patient’s insurance card if a non-GSD provider

2. Tightly Seal All Formalin Bottles
Place the patient requisition in the side pocket of the biohazard bag

3. Send it Via Courier to the “LAB @ GSD WALNUT CREEK”

Nationwide Expert Dermatopathology Services

Our Mission
To provide the full spectrum of dermatology care by combining leading clinicians and resources in the pursuit of the ultimate patient experience.

Our Vision
To increase access to high-value dermatology care through partnerships with entrepreneurial clinicians.

88,500 Cases Annually
1-2 Day Turnaround Time
50+ Combined Years of Experience
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Testimonials

The Golden State Dermatology Pathology Lab is simply the best dermatopathology group that I've ever dealt with in my 45 years of practice. I enjoy working closely with Dr. Emily Green. She is always available and is extremely helpful with her comments and analysis. The path reports are ready in a timely manner with just the right amount of information and with recommendations that are tailored to the ethical and practical treatment of dermatologic problems. Dr. McCalmont also is accessible and a great resource. I truly enjoy working with the whole team!
Emil Tanghetti, MD
Center For Dermatology and Laser Surgery
Dr. McCalmont is the greatest asset one could possibly add to one's dermatopathology team. He always provides clear and concise consultative opinions with a collaborative and approachable style. He is adept at incorporating the clinic presentation with the histologic interpretation of a biopsy, which is a critical but rare skill. Having the expertise of a world-renowned dermatopathologist readily available to me gives me peace of mind and enhances patient care.
Amy Reisenauer, MD
Reisenauer Dermatology
I have been consulting Dr. McCalmont since 2015, shortly after beginning my first job as a dermatopathologist, and his guidance has been invaluable throughout my career. He is remarkably diligent, consistently providing timely and thoughtful consultations. What sets Dr. McCalmont apart is his dedication to education—he often includes full printed articles when discussing unusual or rare diagnoses, turning each case into a learning opportunity. His expertise and commitment have had a lasting impact on both my diagnostic confidence and professional growth.
Leila Langston, MD
Aurora Diagnostics – Arizona Dermatopathology
Dr. McCalmont is not only an amazing dermatopathologist but a kind human being. I can never pay him back for his mentorship and contribution to my career and personal growth as well as our practice through his fast paced consultation service, encyclopedic knowledge and wisdom. He’s a true giant in the field and I’m privileged to know him and fortunate to continue to learn from him.
Mohammad Khan, DO
Medical Director - Onspot Dermatology
Dr. McCalmont’s diagnostic precision, expansive knowledge of dermatopathology, and commitment to patient care are truly outstanding. He consistently demonstrates a meticulous attention to detail, a thoughtful approach to complex cases, and a collaborative spirit that not only delivers a helpful report for the patient but serves as a learning tool for future cases. Beyond Dr. McCalmont’s technical expertise, his professionalism, reliability, and dedication to excellence makes him my first choice in consultants.
Elizabeth Uhlenhake, MD
DermPro
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