H        Hospital
R        Rural Health Clinic
AD       Admitting
AS       Assistant Surgeon
AT       Attending
BI       Billing
BS       Billing Service
CO       Consulting
CV       Covering
HH       Home Health Care
LA       Laboratory
ON       On Staff
OP       Operating
OR       Ordering
OT       Other Physician
P1       Pharmacist
P2       Pharmacy
PC       Primary Care Physician
PE       Performing
PT       Pay-To
PU       Purchasing
RF       Referring
RP       Reporting Provider
SB       Submitting
SK       Skilled Nursing Facility
SU       Supervising