# NPPES NPI Registry, free: Company discovery API

> The Read API can be refined to retrieve only Individual Providers or Organizational Providers.

NPPES NPI Registry's Free plan for the company discovery API costs $0.00 per 1,000 companies. We check each provider's docs for 13 fields: Description, Industry, Type and status, Images and 9 more. NPPES NPI Registry's docs list none of the 13.
NPPES NPI Registry limits how many pages you get but gives no number.
We haven't run NPPES NPI Registry through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet.
We rank 1,165 plans for company discovery APIs by price. Half the plans cost $0.525 or less per 1,000 companies. This plan and 170 others tie for the lowest price per 1,000 companies of the 1,165 plans. [See the best free company discovery API plan.](https://datacircle.dev/best-company-discovery-api.txt)
[PeopleSearch.im's $5 pack](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) covers any number of companies. PeopleSearch.im's $5 pack costs less up front than StackScan's $189 monthly plan.
[GetProspect](https://datacircle.dev/company-discovery-apis/getprospect/49-monthly/llms.txt), [Hunter](https://datacircle.dev/company-discovery-apis/hunter/49-monthly-starter-post-discover/llms.txt) and [PeopleSearch.im](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) are the best company discovery API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/company-discovery-apis/nppes-npi-registry/free
- [Company discovery API: the best of 100+ providers compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://npiregistry.cms.hhs.gov/api-page?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `GET https://npiregistry.cms.hhs.gov/api/`
- API key: not needed
- Its API docs: https://npiregistry.cms.hhs.gov/api-page?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: NPPES NPI Registry (https://npiregistry.cms.hhs.gov?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 0%

## Price

- $ per 1,000 companies: $0.00
- Per: page of 200
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Most per search: 1,200
- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: The Read API can be refined to retrieve only Individual Providers or Organizational Providers.

## Data

- Freshness: 1 day
- Countries: United States
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: version "2.1", one of taxonomy_description, organization_name, first_name, last_name, city, postal_code or country_code. Optional: number, enumeration_type, name_purpose, use_first_name_alias, address_purpose, state, limit, skip
- Method: GET
- Path: /api/

## About the plan

- Plan: Free
- Who can get it: anyone

## The 11 fields the plan's answer can hold

NPI, enumeration type, organization name, other names, authorized official name, taxonomies, primary practice location address, mailing address, practice location addresses, other identifiers, endpoints

## NPPES NPI Registry's plans (1)

- [NPPES NPI Registry, free](https://datacircle.dev/company-discovery-apis/nppes-npi-registry/free/llms.txt): $0.00 per 1,000, 0% complete, 1 day

## NPPES NPI Registry's calls (1)

- `GET /api/`: [NPPES NPI Registry, free](https://datacircle.dev/company-discovery-apis/nppes-npi-registry/free/llms.txt)

## NPPES NPI Registry's APIs (3)

- [NPPES NPI Registry: business verification API pricing, 1 plan](https://datacircle.dev/business-verification-apis/nppes-npi-registry/free/llms.txt)
- [NPPES NPI Registry: company discovery API pricing, 1 plan](https://datacircle.dev/company-discovery-apis/nppes-npi-registry/free/llms.txt)
- [NPPES NPI Registry: people search API pricing, 1 plan](https://datacircle.dev/people-search-apis/nppes-npi-registry/free/llms.txt)

## NPPES NPI Registry: company discovery API alternatives

- [Loopster, free](https://datacircle.dev/company-discovery-apis/loopster/free/llms.txt): $0.00 per 1,000, 23% complete, 1 day
- [Findymail, free trial, POST /api/intellimatch/search, Search leads](https://datacircle.dev/company-discovery-apis/findymail/free/llms.txt): $0.00 per 1,000, 31% complete, live
- [Sumble, free, POST /v9/organizations, Organizations](https://datacircle.dev/company-discovery-apis/sumble/free-post-v9-organizations-organizations/llms.txt): $0.00 per 1,000, 54% complete, 1 day
- [Captapi, free](https://datacircle.dev/company-discovery-apis/captapi/free/llms.txt): $0.00 per 1,000, 38% complete, live
- [National Tax Agency, free](https://datacircle.dev/company-discovery-apis/national-tax-agency/free/llms.txt): $0.00 per 1,000, 15% complete, 1 day

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-08.

- https://npiregistry.cms.hhs.gov?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://npiregistry.cms.hhs.gov/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://npiregistry.cms.hhs.gov/api-page?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://npiregistry.cms.hhs.gov/demo-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.cms.gov/regulations-and-guidance/administrative-simplification/nationalprovidentstand/dataDissemination?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing