Targeting Pathologists in the US

Pathologists are one of the highest-value and hardest physician audiences to reach online. There are around 21,000 practicing Pathologists in the US, the specialists behind an estimated seventy percent of medical diagnoses, yet they work largely behind the scenes in laboratories rather than clinics. They diagnose cancer and disease from tissue and lab samples, run the laboratory, and increasingly drive molecular and companion diagnostics that determine how patients are treated. Our HCP Targeting is audience-based, not Contextual, so we reach the Pathologist as a clinician and as a person, wherever they browse: news, finance, technology, sport, travel, food, lifestyle and health content alike. That is broader reach across brand-safe, premium inventory, through Programmatic and Managed Campaigns, in the US.

HCP Targeting with USA Flag & Stethoscope

Our HCP Targeting (including this Pathologist Targeting Segment) is available in the USA only, delivered with geo-targeting to the United States.

Need to reach HCP audiences based outside the US? It’s harder, but we’ve had success targeting them through Clinical Websites and Contextual Targeting.

The Pathologist Audience

There are around 21,000 practicing Pathologists in the US, a specialty facing a well-documented shortage even as diagnostic testing and precision medicine keep growing. That scarcity is the point: Pathologists sit at the center of diagnosis, reading biopsies and surgical specimens, running the clinical laboratory, and interpreting the molecular and biomarker tests that guide cancer and disease treatment. They choose and influence laboratory instruments, reagents, stains and assays, digital pathology and imaging systems, and companion diagnostics, making them a high-value audience for Diagnostics, Laboratory, Medical Device and Pharmaceutical brands. Because their reports underpin decisions across almost every other specialty, their influence reaches far beyond the lab.

Why Advertise to Pathologists

Pathologists drive a large and growing diagnostics market from behind the scenes. They select and validate the laboratory analyzers, reagents, stains, antibodies and molecular assays their labs run, choose digital and computational pathology platforms, and increasingly direct the companion diagnostics that determine which targeted and immunotherapy drugs a cancer patient receives. Their influence reaches well beyond the laboratory. Pathologists set the testing menus and protocols their hospitals and labs adopt, advise oncologists and other physicians on what a result means, and shape which biomarkers and assays become standard of care. Because a single pathology report can direct an entire course of treatment, reaching the Pathologist is valuable to diagnostics, laboratory and pharmaceutical brands alike.

Take an “Always On” Strategy for Targeting Pathologists

Finding a small audience like Pathologists is a needle-in-a-haystack job. There are around 21,000 of them in the US, a shrinking and in-demand specialty, and they’re some of the busiest people in medicine: working through heavy caseloads of slides and reports, moving between the laboratory, the microscope and the multidisciplinary meeting. You can rarely predict when one is online, whether it’s between cases, after a long day reading slides or on a weekend.

That’s why we recommend an Always On strategy for an audience like this: run the campaign 24/7, 365 days a year so you reach Pathologists whenever they surface, not just in a short burst. Continuous delivery builds reach and frequency over time, so you’re already in front of them by the time your message matters most.

An Always On budget goes further with an Omnichannel approach. Rather than betting on one screen, you reach Pathologists across the whole day: on their phone in the staff room, through a podcast in the car, on the office desktop between patients, and on Connected TV while they unwind at home. Same audience, more moments, more chances for your message to land.

Pathologists Targeting

Activating a Pathologist Audience with our HCP Targeting

Activating a Pathologist audience with our HCP Targeting is quick and simple. Choose the campaign activation setup that suits your team: run it yourself programmatically, or hand the whole campaign setup and management to our team.

Programmatic Activation

DSP Agnostic, we package our Pathologist HCP audience segments as a Deal ID / PMP, so your own media traders can activate them in your own Programmatic workflow, retaining full control over campaign budget, creative, optimization and performance. Setup time frame is usually same day / next day for HCP Campaigns.

Managed Campaign Activation

Prefer us to run your HCP Campaigns? Our Expert Managed Campaign team plans, builds, manages and optimizes your Pathologist campaign end to end across premium, brand-safe inventory. HCP Managed Campaigns typically take 5 to 7 working days to go live, from the initial discussion through Insertion Order and reporting setup.

Healthy Ads’ HCP Targeting

Healthy Ads’ HCP Targeting draws on multiple data partnerships to reach verified healthcare professionals at scale. Our partners hold audited, NPI-level records of US clinicians and resolve each one to their digital identities across devices, so your ads match real specialists like Pathologists. The data is privacy-safe and de-identified, and your campaigns run on premium, brand-safe inventory.

Health Targeting is in our DNA

Since 2012, Healthy Ads has been the leader in Health Advertising, delivering Health Targeting across premium publisher content in Real Time. From OTC and Prescription (Rx) brands to B2B, we serve every kind of health advertiser. However you need to reach your audience, we have industry-leading advertising solutions to cover your health campaigns: Contextual Targeting, HCP Targeting, Website Category Targeting and Retargeting.

Related HCP Audiences

Pathologists rarely work alone. They work alongside a wide range of specialists across primary care, diagnosis, treatment and long-term disease management, so you can reach these closely related HCP audiences with the same precision, scale and brand-safe reach through Healthy Ads HCP Targeting.

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To activate a HCP Targeting campaign for Pathologists or any other medical professionals, download our Media Kit or contact our team to get started. We’ll help you plan the audience, channels and Always On strategy.

Frequently Asked Questions (FAQs)

A Pathologist is a doctor who diagnoses disease by examining tissue, blood and other body samples in the laboratory. After medical school they complete a Pathology residency and often a fellowship in areas like anatomic, clinical, molecular or hematopathology. They read biopsies and surgical specimens, run and interpret laboratory tests, and increasingly use molecular and digital pathology to guide diagnosis and treatment. Much of their work happens behind the scenes but shapes almost every diagnosis.

There are around 21,000 practicing Pathologists in the US, according to the AMA Physician Masterfile, though workforce counts vary because pathology spans many subspecialties. The field faces a well-documented shortage as demand for diagnostic testing grows and the workforce ages. That makes Pathologists a scarce, high-value and hard-to-reach audience.

A Pathologist diagnoses disease from laboratory samples rather than treating patients directly. In anatomic pathology they examine biopsies, surgical specimens and cytology under the microscope to diagnose cancer and other conditions. In clinical pathology they oversee the laboratory, from blood tests and microbiology to blood banking and molecular diagnostics. Their reports drive the diagnosis and treatment decisions that other physicians act on.

Both are diagnostic specialists who rarely see patients directly, but they work with different information. A Pathologist diagnoses disease by examining tissue, cells and laboratory samples under the microscope and through lab tests. A Radiologist diagnoses disease by interpreting imaging like X-rays, CT, MRI and ultrasound. Both provide the diagnoses that guide treating physicians, and they often work together on the same case.

Through our HCP Targeting. We package a Pathologist audience segment you can run as a Deal ID / PMP in your own DSP, or hand to our managed team to run for you.

Our targeting is audience-based, not contextual, so we reach Pathologists wherever they browse: news, finance, technology, sport, travel, food, lifestyle and health content. That’s much broader than health sites alone, across brand-safe, premium inventory.

No. It’s delivered with geo-targeting to the United States only. To reach HCP audiences based elsewhere, we use clinical websites and contextual targeting instead.

HCP Targeting reaches healthcare professionals: physicians, nurses, pharmacists and other clinicians, as an audience rather than by the page they’re on. Because it’s audience-based, we reach the professional wherever they browse, not just on medical sites.

Yes. The data is privacy-safe and de-identified, so you reach professional audiences without handling any personal health information.

Beyond Pathologists, we build HCP segments for Cardiologists, Anesthesiologists, Dermatologists, Dentists, Oncologists, General Practitioners, Endocrinologists, Pediatricians and more. See all the audiences we cover on our HCP Targeting page.

Last Updated: 18-Jul-2026