Question 1

Which is better, CMS.gov or NPPES?

Accepted Answer

If you need a Health API that's easy to integrate, go with NPPES. CMS.gov uses apiKey while NPPES uses no authentication.

Question 2

What is the main difference between CMS.gov and NPPES?

Accepted Answer

CMS.gov: Access to the data from the CMS - medicare.gov. NPPES: National Plan & Provider Enumeration System, info on healthcare providers registered in US. They differ in authentication (apiKey vs no authentication), HTTPS support (yes vs yes), and CORS (unknown vs unknown).

Question 3

Which Health API is easier to integrate?

Accepted Answer

NPPES is easier to integrate because it requires no authentication.

Feature	CMS.gov	NPPES
Authentication	apiKey	None
HTTPS	Yes	Yes
CORS	Unknown	Unknown

CMS.gov vs NPPES

CMS.gov

NPPES

When to use which?