diff --git a/R/get_hipaa_disclosure_log_from_ehr_fhir_logs.R b/R/get_hipaa_disclosure_log_from_ehr_fhir_logs.R
index d5f52f3..cac935f 100644
--- a/R/get_hipaa_disclosure_log_from_ehr_fhir_logs.R
+++ b/R/get_hipaa_disclosure_log_from_ehr_fhir_logs.R
@@ -5,7 +5,7 @@
 #' parameters to narrow the returned result.
 #'
 #' @param conn a DBI connection object to the REDCap database
-#' @param ehr_id the REDCap EHR_ID for the EHR of interest (optional)
+#' @param ehr_id a vector of REDCap EHR_IDs for the EHR(s) of interest (optional)
 #' @param start_date The first date from which we should return results (optional)
 #'
 #' @return A dataframe suitable for generating a HIPAA disclosure log
@@ -34,6 +34,9 @@ get_hipaa_disclosure_log_from_ehr_fhir_logs <- function(
   # rename parameters for local use
   ehr_id_local <- ehr_id
 
+  # determine if ehr_id of interest
+  ehr_id_is_na <- length(ehr_id_local) == 1 & all(is.na(ehr_id_local))
+
   # make DBI objects for joins
   user_information <- dplyr::tbl(conn, "redcap_user_information") |>
     dplyr::select(
@@ -57,7 +60,7 @@ get_hipaa_disclosure_log_from_ehr_fhir_logs <- function(
     dplyr::tbl(conn, "redcap_ehr_fhir_logs") |>
     dplyr::filter(.data$resource_type == "Patient" & .data$mrn != "") |>
     dplyr::filter(is.na(start_date) | .data$created_at >= start_date) |>
-    dplyr::filter(is.na(ehr_id_local) | ehr_id_local == .data$ehr_id) |>
+    dplyr::filter(ehr_id_is_na | .data$ehr_id %in% ehr_id_local) |>
     dplyr::left_join(user_information, by = c("user_id" = "ui_id")) |>
     dplyr::left_join(projects, by = c("project_id")) |>
     dplyr::collect() |>
diff --git a/man/get_hipaa_disclosure_log_from_ehr_fhir_logs.Rd b/man/get_hipaa_disclosure_log_from_ehr_fhir_logs.Rd
index 1bbaef4..d6ee0b6 100644
--- a/man/get_hipaa_disclosure_log_from_ehr_fhir_logs.Rd
+++ b/man/get_hipaa_disclosure_log_from_ehr_fhir_logs.Rd
@@ -13,7 +13,7 @@ get_hipaa_disclosure_log_from_ehr_fhir_logs(
 \arguments{
 \item{conn}{a DBI connection object to the REDCap database}
 
-\item{ehr_id}{the REDCap EHR_ID for the EHR of interest (optional)}
+\item{ehr_id}{a vector of REDCap EHR_IDs for the EHR(s) of interest (optional)}
 
 \item{start_date}{The first date from which we should return results (optional)}
 }
diff --git a/tests/testthat/test-get_hipaa_disclosure_log_from_ehr_fhir_logs.R b/tests/testthat/test-get_hipaa_disclosure_log_from_ehr_fhir_logs.R
index 51738ca..ae9db3c 100644
--- a/tests/testthat/test-get_hipaa_disclosure_log_from_ehr_fhir_logs.R
+++ b/tests/testthat/test-get_hipaa_disclosure_log_from_ehr_fhir_logs.R
@@ -64,5 +64,9 @@ testthat::test_that("get_hipaa_disclosure_log_from_ehr_fhir_logs works", {
   result_future_date <- get_hipaa_disclosure_log_from_ehr_fhir_logs(conn, start_date = future_start_date)
   testthat::expect_equal(nrow(result_future_date), 0)
 
+  # test that we can query with multiple EHR_IDs
+  result_multiple_filtered_ehr_id <- get_hipaa_disclosure_log_from_ehr_fhir_logs(conn, ehr_id = c(1,2))
+  testthat::expect_true(all(result_multiple_filtered_ehr_id$ehr_id %in% c(1,2)))
+
   DBI::dbDisconnect(conn, shutdown = TRUE)
 })