Ms. Peggy Matthews-Nilsen LCSW-C
About this NPIWhat this record shows.
NPI 1366576910 is registered to Ms. Peggy Matthews-Nilsen LCSW-C, a Clinical Social Worker practising at 4622 Woodfield Rd in Bethesda, Maryland. Clinical Social Worker is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Ms. Peggy Matthews-Nilsen LCSW-C 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 Ms. Peggy Matthews-Nilsen LCSW-C accepts. To confirm in-network status with your specific health plan, contact Ms. Peggy Matthews-Nilsen LCSW-C directly at (301) 571-5191.
Frequently asked
Yes. NPI 1366576910 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Clinical 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 (301) 571-5191.
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. Peggy Matthews-Nilsen LCSW-C is a Type-1 individual NPI.