How to export your 835 / ERA files

What we need: the last 6 months of 835 (ERA) remittance files — the electronic payment-explanation files your insurers already send to your billing system. Any file names ending in .835, .era, .txt, or .edi are right; a ZIP of many files is perfect. Find your system below.

Athenahealth (athenaOne / athenaCollector)
  1. Go to Financials → Remittance (or search "Remittance Records" in the top search bar).
  2. Filter the date range to the last 6 months; leave payer set to All.
  3. Select the remittance batches → Download/Export → choose the ERA/835 file format (not the PDF summary).
Tebra (formerly Kareo)
  1. Open Billing → Electronic Remittance (ERA) — in Tebra Desktop: Encounters → Clearinghouse Reports → ERA.
  2. Set the received-date range to the last 6 months.
  3. Open each ERA batch → Download original file (saves the raw 835). Batch-select where offered.
Office Ally (Practice Mate / Service Center)
  1. Log in to the Service Center → Download File Summary (or Practice Mate → Reports → EOB/ERA 835).
  2. Set the date range; the ERA/835 files are listed per payer batch.
  3. Click Download on each — they arrive as raw .835 text files.
DrChrono
  1. Go to Billing → Remittance Reports.
  2. Filter to the last 6 months; each posted ERA row has a View/Download ERA option — choose the file (835) version.
AdvancedMD
  1. Open Billing → ERA Center (Remittance Manager).
  2. Filter received dates to the last 6 months.
  3. Select batches → Export/Save 835 file.
eClinicalWorks
  1. Go to Billing → ERA (or the EDI menu → ERA Inbox).
  2. Set the date range; select the ERA batches.
  3. Use Save/Export to download the raw 835 files (not the posting report).
Your clearinghouse (works for any billing system)
  1. If your claims flow through Availity, Waystar, Trizetto/Gateway, Change Healthcare/Optum, or Claim.MD, your biller can log in there instead.
  2. Find Remittance / ERA / 835 files in the reports or mailbox section.
  3. Download the last 6 months as raw 835 files. Clearinghouses keep them even when the PM system doesn't.
Don't see your system / not sure?
  1. Email support@claimmender.com with your system's name — we'll reply with exact steps, or get on a screen-share with your biller and do it together.
  2. Worst case: your biller asks the clearinghouse to re-deliver the last 6 months of ERAs. That's a routine request.

Two rules: (1) we need the raw 835 file, not the human-readable PDF/ posting report — the raw file carries the denial codes we analyze; (2) files upload securely right on the signup page when you sign the BAA — never over plain email. Already signed without files? Reply to your confirmation email and we'll send your private upload link.

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