William Marks
About this NPIWhat this record shows.
NPI 1962363408 is registered to William Marks, a Social Worker practising at 6999 Reisterstown Rd Ste 3 in Baltimore, Maryland. Social Worker is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. William Marks 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 William Marks accepts. To confirm in-network status with your specific health plan, contact William Marks directly at (667) 600-3210.
Frequently asked
Yes. NPI 1962363408 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
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 (667) 600-3210.
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. William Marks is a Type-1 individual NPI.