Top Healthcare Websites in the United States

Key Insights on Top Healthcare Websites in the United States on December 2025

As of December 2025, nih.gov leads Healthcare in the United States with 63.01M monthly visits. Its audience skews desktop-first (52.51% desktop / 52.51% mobile), and traffic is down month over month -15.44% and down year over year -15.61%. clevelandclinic.org holds second with 50.44M visits and a mobile-leaning mix (24.16% desktop / 75.84% mobile), while athenahealth.com ranks third with 36.55M visits.

Across the leaders, phreesia.me is the most mobile-first (99.93% of visits), whereas availity.com is the most desktop-reliant (97.82%). Momentum favors tiphero.com in the latest month (102.99%), while alight.com shows the steepest pullback. On a yearly view, thefabulous.co posts the strongest expansion (246.79%), contrasted with phreesia.me (-41.66%).

Acquisition patterns also differ: nih.gov is driven primarily by search, nih.gov by direct, and nih.gov by referral; overall, 75 of the top 100 sites are direct-led, 13 are search-led, and 12 lean on social.

These insights come from the Traffic & Market Toolkit, enriched with extensive clickstream data.

Our AI algorithms analyze petabytes of information from a blend of proprietary and external data pools, reflecting the online activities of over 200 million anonymized users.

For more detailed information on our data-gathering and analysis process, please visit our information page here.