If your payer is following an OPPS payment system, then yes, you'll bill the physician global charge just once for the multiple visits and the facility will bill a charge for each visit - most payers following OPPS will look for revenue code 510 with HCPCS code G0463 to represent the clinic charge for an E&M encounter. But you'd need to look at your individual payers' guidelines on this. Global concepts usually don't apply to facility charges, but individual payers may have specific guidelines on how they want this billed. For example, some payers don't recognize or pay revenue code 510, in which case they may allow the facility its payment for the multiple services under a different billing arrangement.
There are several links to good articles on this related forum thread here:
It's pretty difficult to find good written coding guidelines related to OPPS. I find a lot of things are buried in regulations and there isn't a good source for clear explanations for the right ways to handle facility outpatient billing.