Web Research / Data Collection: Concierge Medicine Doctors Database (All 50 US States)

I need a comprehensive, accurate database of concierge medicine doctors and practices across all 50 US states, compiled through web research and/or scraping of public directories and search engines. Deliverable A single Excel (.xlsx) or CSV file, one row per doctor, with the following columns: - Practice Name - Doctor Name (multiple if multiple docs exist) - Email - Phone Number - Address - City - State - Source URL (the page where this information was found, for verification) - Known concierge medicine networks/directories, including but not limited to: Concierge Choice Physicians (ccpmd.com), SignatureMD (signaturemd.com), MDVIP, MD2 (MD Squared), PartnerMD, and similar - General web search / Google Maps for independent concierge practices not part of a network - Individual practice websites, to confirm the practice actually offers a concierge/membership-based model (not just general primary care) and to source direct contact details Quality requirements - No duplicate entries - Every row must have a working source URL - Email and phone should be sourced from the practice's own website or listing wherever possible (not guessed or generated) - Flag any doctor/practice where required fields are not publicly available, rather than leaving blank or guessing - Final file should be sorted by state, then city Estimated scope All 50 USA states. Open to a phased approach (e.g., 10 states delivered first as a sample/quality check before continuing to the rest). To apply, please include 1. Your approach to sourcing this data (which directories/tools you'd use) 2. Whether you'd use automated scraping, manual research, or a mix 3. A time estimate and price for: (a) one sample state, and (b) all 50 states 4. Any past examples of similar data collection / lead-gen projects Budget Open; please quote based on your proposed approach and the scope above. Will award based on data quality plan and experience, not just lowest bid.