1. A method comprising: receiving, by one or more computing devices of a matching-engine system, from an administrator of the matching-engine system a set of physician-selection parameters comprising: a performance-score-range for physicians; and an experience-score-range for physicians; storing, by one or more of the computing devices, the parameters in a data store of the matching-engine system; receiving, by one or more of the computing devices, a search query from a client device of a user of the matching-engine system, the search query comprising a geographic location of the user and one or more of a user-specified symptom or a user-specified treatment; determining, by one or more of the computing devices, at least one base-concept based on the search query, the base-concept comprising a medical diagnosis or a medical procedure; identifying, by one or more of the computing devices, a set of one or more physicians to be recommended to the user based at least in part on: a geographic location of each of the one or more physicians; a performance-score associated with the at least one base-concept for each of the one or more physicians, wherein the performance-score is calculated based on a weighted aggregate of individual performance-scores for one or more sub-concepts of the base-concept, wherein the individual performance-scores are calculated by: (1) accessing one or more Current Procedural Terminology (CPT) codes from claims data received from the physician, wherein the CPT codes refer to a medical service provided by the physician in connection with the one or more sub-concepts; (2) determining one or more relative value units (RVUs) corresponding to the one or more CPT codes, wherein the RVUs corresponding to a CPT code represents a location-independent measure of overall resources used for the medical service; (3) calculating a physician-cost-factor for the physician associated with the one or more sub-concepts, wherein the physician-cost-factor is based on the RVUs corresponding to the medical service provided by the physician for the one or more sub-concepts; (4) accessing an average cost factor associated with the one or more sub-concepts for a plurality of physicians, wherein the physician and the plurality of physicians share a common specialty and common geographic location; and (5) comparing the physician-cost-factor with the average cost factor, wherein the individual performance-score for the physician for the one or more sub-concepts is increased if the physician-cost-factor is lower than the average cost factor; an experience-score associated with the at least one base-concept each of the one or more physicians; and the set of physician-selection parameters from the administrator; and sending, by one or more computing devices, a search-results page to a client device of the user, the search-results page comprising references to one or more of the physicians in the set of physicians.
1. A method comprising: receiving, by one or more computing devices of a matching-engine system, from an administrator of the matching-engine system a set of physician-selection parameters comprising: a performance-score-range for physicians; and an experience-score-range for physicians; storing, by one or more of the computing devices, the parameters in a data store of the matching-engine system; receiving, by one or more of the computing devices, a search query from a client device of a user of the matching-engine system, the search query comprising a geographic location of the user and one or more of a user-specified symptom or a user-specified treatment; determining, by one or more of the computing devices, at least one base-concept based on the search query, the base-concept comprising a medical diagnosis or a medical procedure; identifying, by one or more of the computing devices, a set of one or more physicians to be recommended to the user based at least in part on: a geographic location of each of the one or more physicians; a performance-score associated with the at least one base-concept for each of the one or more physicians, wherein the performance-score is calculated based on a weighted aggregate of individual performance-scores for one or more sub-concepts of the base-concept, wherein the individual performance-scores are calculated by: (1) accessing one or more Current Procedural Terminology (CPT) codes from claims data received from the physician, wherein the CPT codes refer to a medical service provided by the physician in connection with the one or more sub-concepts; (2) determining one or more relative value units (RVUs) corresponding to the one or more CPT codes, wherein the RVUs corresponding to a CPT code represents a location-independent measure of overall resources used for the medical service; (3) calculating a physician-cost-factor for the physician associated with the one or more sub-concepts, wherein the physician-cost-factor is based on the RVUs corresponding to the medical service provided by the physician for the one or more sub-concepts; (4) accessing an average cost factor associated with the one or more sub-concepts for a plurality of physicians, wherein the physician and the plurality of physicians share a common specialty and common geographic location; and (5) comparing the physician-cost-factor with the average cost factor, wherein the individual performance-score for the physician for the one or more sub-concepts is increased if the physician-cost-factor is lower than the average cost factor; an experience-score associated with the at least one base-concept each of the one or more physicians; and the set of physician-selection parameters from the administrator; and sending, by one or more computing devices, a search-results page to a client device of the user, the search-results page comprising references to one or more of the physicians in the set of physicians. 3. The method of claim 1 wherein the common geographic location comprises a metropolitan statistical area.