Allison Callan
About this NPIWhat this record shows.
NPI 1821975970 is registered to Allison Callan, a School Psychologist practising at 850 Hungerford Dr in Rockville, Maryland. School Psychologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Allison Callan has been enumerated in the National Provider Identifier (NPI) registry since 2025.
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 Allison Callan accepts. To confirm in-network status with your specific health plan, contact Allison Callan directly at (240) 740-3000.
Frequently asked
Yes. NPI 1821975970 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
School 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 (240) 740-3000.
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. Allison Callan is a Type-1 individual NPI.