Mark Johnston MD
Also known as
- Also known asJohnston, Mark R
Source: NPPES public registry.
About this NPIWhat this record shows.
NPI 1619175460 is registered to Mark Johnston MD, a Family Medicine practising at Westchester County Department Of Health, 145 Huguenot Street in New Rochelle, New York. Family Medicine physicians provide comprehensive primary care for patients of all ages, including preventive care, chronic disease management, and acute illness treatment. Mark Johnston MD has been enumerated in the National Provider Identifier (NPI) registry since 2007.
Your brand here.
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 Mark Johnston MD accepts. To confirm in-network status with your specific health plan, contact Mark Johnston MD directly at (914) 813-5237.
Frequently asked
Yes. NPI 1619175460 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Family Medicine physicians provide comprehensive primary care for patients of all ages, including preventive care, chronic disease management, and acute illness treatment.
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 (914) 813-5237.
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. Mark Johnston MD is a Type-1 individual NPI.