Leveraging the largest multi-sourced database of active practicing physicians, Lodestone offers flexible data solutions that facilitate multi-channel marketing and communications. Over 900,000 unique B2B permissioned, verified, and deliverable email addresses are linked to practicing healthcare providers with practice/billing address, phone, and fax. These demographic files, totaling over 2.3M physicians and allied health professionals, are strengthened with titles, specialties, multiple identifiers including DEA number, UPIN number, State License number, NPI number, and Tax ID; and with linkage to hospital and group practice affiliations. Applying our core competencies of data matching, appending, hygiene, and management, we integrate 12M - 14M incoming records each month and create highly accurate and content rich data solutions for marketers, researchers, insurers, and healthcare networks. Coverage includes MD/DO, nurse practitioners, physician assistants, dentists, podiatrists, optometrists, chiropractors, pharmacists, therapists, and psychologists.