redaction is necessary to anonymize an electronic health record?

how much redaction is necessary to anonymize an electronic health record. Is it enough to redact the name? The name and address? Is a medical record like a finger print?

 
"Looking for a Similar Assignment? Order now and Get 10% Discount! Use Code "Newclient"

"Our Prices Start at $11.99. As Our First Client, Use Coupon Code GET15 to claim 15% Discount This Month!!":

Get started