Marcus John LCSW-C
About this NPIWhat this record shows.
NPI 1770306557 is registered to Marcus John LCSW-C, a School Social Worker practising at 640 E Diamond Ave in Gaithersburg, Maryland. School Social Worker is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Marcus John LCSW-C has been enumerated in the National Provider Identifier (NPI) registry since 2024.
Your brand here.
Medicare enrollment
This provider holds 2 Medicare enrollments on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20260114004151Clinical Social WorkerMD
- I20260114004231Clinical Social WorkerDC
Source: CMS PECOS public enrollment file.
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 Marcus John LCSW-C accepts. To confirm in-network status with your specific health plan, contact Marcus John LCSW-C directly at (202) 313-2397.
Frequently asked
Yes. NPI 1770306557 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
School Social Worker 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 (202) 313-2397.
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. Marcus John LCSW-C is a Type-1 individual NPI.