Forcura.NPPESAPI 2.1.1

.NET 5.0 .NET Standard 1.5
dotnet add package Forcura.NPPESAPI --version 2.1.1
NuGet\Install-Package Forcura.NPPESAPI -Version 2.1.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Forcura.NPPESAPI" Version="2.1.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Forcura.NPPESAPI --version 2.1.1
#r "nuget: Forcura.NPPESAPI, 2.1.1"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Forcura.NPPESAPI as a Cake Addin
#addin nuget:?package=Forcura.NPPESAPI&version=2.1.1

// Install Forcura.NPPESAPI as a Cake Tool
#tool nuget:?package=Forcura.NPPESAPI&version=2.1.1



This is a .NET wrapper for interacting with the CMS National Plan and Provider Enumeration System NPPES National Provider Identifier (NPI) lookup system

For more information visit the NPI registry


Requests are as simple as providing an NPI number to lookup:

var results = await NPPESApiClient.SearchAsync("8942315671");


var results = await NPPESApiClient.SearchAsync(new NPPESRequest
   Number = "5631047582"

For more complicated queries, use the other provided fields on the NPPESRequest object:

var results = await NPPESApiClient.SearchAsync(new NPPESRequest
   FirstName = "John",
   LastName = "Doe"

Using the builder:

var builder = new NPPESRequestBuilder();
var request = builder

var results = await NPPESApiClient.SearchAsync(request);

Dependency Injection

For netcore/net5+ you can register this with the IServiceCollection through the extension method:

using Forcura.NPPES.DependencyInjection;

// simple approach
IServiceCollection serviceCollection = ...;

// for any customizations of the IHttpClientBuilder
IServiceCollection serviceCollection = ...;

It is important to note that the NPPES API by default, accesses the latest public api version, as currently it is backward compatible, this is something to be aware of.


Copyright 2022 Forcura

Licensed under the Apache 2.0 license


Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp1.0 netcoreapp1.1 netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard1.5 netstandard1.6 netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48 net481
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen30 tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last updated
2.1.1 1,940 8/22/2022
2.1.0 312 8/1/2022
2.0.0 1,244 12/3/2021
1.1.2 294 6/3/2021
1.1.1 13,270 4/12/2019
1.0.0 735 9/28/2018

Update to support the following Rest API breaking changes:
     * `result_count` was renamed to `resultCount`
     * Timestamps are now milliseconds from the epoch instead of seconds from the epoch

     Other changes:
     * Using version 1.0 and 2.0 requests will provide a deprecation warning