Evidence for doctors from search_doctors: pass doctor_ids (up to 10 at once), or one doctor_id, or an npi. Each different doctor you open counts toward a daily limit for your connection (replies show daily_doctor_limit when it matters); opening a doctor again the same day is free. Open the doctors you are seriously considering, not every result. One reply holds about 2-3 doctors (1 with detail='full'); the others come back under not_returned_yet, already counted, so call again with those doctor_ids at no extra cost. Full evidence for one doctor; use it to compare or check doctors the person names (by npi) and before recommending. Every doctor: registered specialty, practice locations with phones (phone_source), medical school, hospitals, medical group, Medicare 2024 patients and patient mix, procedure volumes with national ranks, Medicare opt-out and federal exclusion-list checks, and from official files prescribing_2024 (Medicare Part D 2024 summary and top medicines), industry_payments (2024-2025), industry_research_as_principal_investigator and mips_2024 (detail='full' returns them as one official_extras record). Any doctor whose Part D 2024 claims lean clearly toward one condition's medicines has prescribing_signals_2024 (more such patients, not quality). Doctors whose hospital system's own website was read have hospital_websites (per site: focus as standard MeSH terms, languages, education, board certifications, new-patient status, office phones and addresses, page address and date read; at some hospital systems also insurance_listed, the page's insurance list grouped by insurer, a lead to confirm). detail='full' returns every collected field.