Mr. John O'brien Msw
About this NPIWhat this record shows.
NPI 1740394477 is registered to Mr. John O'brien Msw, a Clinical Social Worker practising at 10 N Greene St in Baltimore, Maryland. Clinical Social Worker is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Mr. John O'brien Msw has been enumerated in the National Provider Identifier (NPI) registry since 2006.
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 Mr. John O'brien Msw accepts. To confirm in-network status with your specific health plan, contact Mr. John O'brien Msw directly at (410) 605-7012.
Frequently asked
Yes. NPI 1740394477 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 (410) 605-7012.
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. Mr. John O'brien Msw is a Type-1 individual NPI.