SKNearbySearchSettings* searchObject = [SKNearbySearchSettings nearbySearchSettings];
        searchObject.coordinate = CLLocationCoordinate2DMake(currentLocation.coordinate.latitude, currentLocation.coordinate.longitude);
        searchObject.searchTerm=@""; //search for all POIs
        searchObject.radius = 5000;
        searchObject.searchMode=SKSearchHybrid;
        searchObject.searchResultSortType=SKProximitySort;
        searchObject.searchCategories = @[ @(SKPOICategoryHospital)];
        [[SKSearchService sharedInstance] setSearchResultsNumber:10000];
        [[SKSearchService sharedInstance]startNearbySearchWithSettings:searchObject];
Use this code for finding nearby hospitals.
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solved iOS: How to show nearby hospitals in skobbler maps?