Ms. Mary Johnston APRN
About this NPIWhat this record shows.
NPI 1841424801 is registered to Ms. Mary Johnston APRN, a Adult Health Nurse Practitioner practising at 800 Howard Ave, Ypb 4th Floor in New Haven, Connecticut. Adult Health Nurse Practitioner is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Ms. Mary Johnston APRN has been enumerated in the National Provider Identifier (NPI) registry since 2009.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
Source: NPPES public registry.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Ms. Mary Johnston APRN accepts. To confirm in-network status with your specific health plan, contact Ms. Mary Johnston APRN directly at (203) 785-4191.
Frequently asked
Yes. NPI 1841424801 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Adult Health Nurse Practitioner is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (203) 785-4191.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Ms. Mary Johnston APRN is a Type-1 individual NPI.