diff --git a/Hospital/HospitalBusinessLogic/BusinessLogics/PharmacistLogic.cs b/Hospital/HospitalBusinessLogic/BusinessLogics/PharmacistLogic.cs
new file mode 100644
index 0000000..e908a59
--- /dev/null
+++ b/Hospital/HospitalBusinessLogic/BusinessLogics/PharmacistLogic.cs
@@ -0,0 +1,127 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+using HospitalDataModels.Models;
+using HospitalContracts.BindingModels;
+using HospitalContracts.ViewModels;
+using HospitalContracts.StoragesContracts;
+using HospitalContracts.SearchModels;
+using HospitalContracts.BusinessLogicContracts;
+
+
+namespace HospitalBusinessLogic.BusinessLogics
+{
+    public class PharmacistLogic : IPharmacistLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IPharmacistStorage _pharmacistStorage;
+        public PharmacistLogic(ILogger<PharmacistLogic> logger, IPharmacistStorage
+       pharmacistStorage)
+        {
+            _logger = logger;
+            _pharmacistStorage = pharmacistStorage;
+        }
+        public List<PharmacistViewModel>? ReadList(PharmacistSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. PharmacistFIO:{PharmacistFIO}. Id:{ Id}", model?.FIO, model?.Id);
+            var list = model == null ? _pharmacistStorage.GetFullList() :
+    _pharmacistStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public PharmacistViewModel? ReadElement(PharmacistSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. PharmacistFIO:{PharmacistFIO}.Id:{ Id}", model.FIO, model.Id);
+            var element = _pharmacistStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+        public bool Create(PharmacistBindingModel model)
+        {
+            CheckModel(model);
+            if (_pharmacistStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Update(PharmacistBindingModel model)
+        {
+            CheckModel(model);
+            if (_pharmacistStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(PharmacistBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_pharmacistStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(PharmacistBindingModel model, bool withParams =
+       true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.FIO))
+            {
+                throw new ArgumentNullException("Нет ФИО клиента",
+               nameof(model.FIO));
+            }
+            if (string.IsNullOrEmpty(model.Login))
+            {
+                throw new ArgumentNullException("Нет Email клиента",
+               nameof(model.Login));
+            }
+            if (string.IsNullOrEmpty(model.Password))
+            {
+                throw new ArgumentNullException("Нет пароля клиента",
+               nameof(model.Password));
+            }
+            _logger.LogInformation("Pharmacist. PharmacistFIO:{PharmacistFIO}." +
+                "Email:{ Email}. Password:{ Password}. Id: { Id} ", model.FIO, model.Login, model.Password, model.Id);
+            var element = _pharmacistStorage.GetElement(new PharmacistSearchModel
+            {
+                Login = model.Login,
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Клиент с таким логином уже есть");
+            }
+        }
+    }
+
+}
+
diff --git a/Hospital/HospitalBusinessLogic/HospitalBusinessLogic.csproj b/Hospital/HospitalBusinessLogic/HospitalBusinessLogic.csproj
index 132c02c..3e4facb 100644
--- a/Hospital/HospitalBusinessLogic/HospitalBusinessLogic.csproj
+++ b/Hospital/HospitalBusinessLogic/HospitalBusinessLogic.csproj
@@ -6,4 +6,13 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\HospitalContracts\HospitalContracts.csproj" />
+    <ProjectReference Include="..\HospitalDataModels\HospitalDataModels.csproj" />
+  </ItemGroup>
+
 </Project>
diff --git a/Hospital/HospitalDataModels/Models/IDescriptionProcedureModel.cs b/Hospital/HospitalDataModels/Models/IDescriptionProcedureModel.cs
index f22ced5..bda3cf7 100644
--- a/Hospital/HospitalDataModels/Models/IDescriptionProcedureModel.cs
+++ b/Hospital/HospitalDataModels/Models/IDescriptionProcedureModel.cs
@@ -4,6 +4,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
+
 namespace HospitalDataModels.Models
 {
     public interface IDescriptionProcedureModel