OpenHealth's models learn from years of CMS records, predict how patients at each surgeon's affiliated hospitals will do, and recommend doctors near you. The models are tested on later periods.

Complications 15% below the national rate.
Likely range: 48% below to 18% aboveRiverside General, 2.1% after adjusting for its case count.
CMS hospital files143 knee replacements a year.
CMS procedure volumeThe predictions were closer to later results than each hospital's last published rate.
Method and test results
Her hospital's complications are below the national rate, and she does 143 knee replacements a year.
CMS and state agencies measure the surgery. OpenHealth trains a model on those measures and rates each doctor.
Star ratings come from Zocdoc, Yelp and Healthgrades.




The rating model learns from these records.






Each step uses an OpenHealth screen with a sample surgeon.


Orthopedic surgery · Columbus, OH
Lower predicted rate. Predicted complications 15% below the national rate.
Likely range: 48% below to 18% above71% of 88 eligible knee replacements met the target.
Surgeries Oct 2022 to Sep 2023143 in one year.
CMS procedure volumeComplications 2.1%, national 2.4%.
CMS hospital filesOrthopedic surgery · Example Orthopedic Group · Columbus, OH
71% of 88 eligible knee replacements met the knee function target 9 to 15 months after surgery.
Surgeries Oct 2022 to Sep 2023143 in one year.
92nd percentile for volume among doctors CMS countsComplication rate after hip or knee replacement 2.1%. National rate 2.4%.
Not listed OIG exclusion list · CMS revoked Medicare list

Answers about ratings, cost, sources and updates.
Yes. OpenHealth is free and needs no account.
CMS, state health departments, the HHS Office of Inspector General and CMS Open Payments publish the files. Each number links to its file and states its measure and period.
Yes. For each procedure it covers, OpenHealth scores doctors with models trained on years of CMS records. The model predicts how results at the hospitals each doctor is affiliated with will compare with the national rate and gives a likely range. For a procedure and a place, OpenHealth recommends up to five doctors, with the lowest predicted rate first.
OpenHealth tests every model on later periods and publishes the results, including cases where a model does no better than a simpler method. A rating predicts results for a group of patients at the hospitals a doctor is affiliated with. It does not predict the result of any one operation.
Published directory listings can help you check. They do not confirm your exact plan, office, service date or appointment availability. Explore care options and confirm with the insurer and practice.
OpenHealth checks for new public reports every night. The coverage page lists each source and its release date.
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Search by procedure and place, or look up a doctor or hospital. It is free and needs no account.