Ms. Mary Johnston PH.D.
Also known as
- Also known asJohnston, Holly
Source: NPPES public registry.
About this NPIWhat this record shows.
NPI 1790760023 is registered to Ms. Mary Johnston PH.D., a Psychologist practising at 4820 S Greenwood Ave in Chicago, Illinois. Psychologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Ms. Mary Johnston PH.D. has been enumerated in the National Provider Identifier (NPI) registry since 2005.
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 Ms. Mary Johnston PH.D. accepts. To confirm in-network status with your specific health plan, contact Ms. Mary Johnston PH.D. directly at (773) 624-8181.
Frequently asked
Yes. NPI 1790760023 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Psychologist 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 (773) 624-8181.
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 PH.D. is a Type-1 individual NPI.