Mr. John Greenwald M.D.
About this NPIWhat this record shows.
NPI 1437560554 is registered to Mr. John Greenwald M.D., a Hospitalist practising at 8901 Rockville Pike, Building 1, 19th Floor, Room 19122 in Bethesda, Maryland. Hospitalist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Mr. John Greenwald M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2014.
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 Greenwald M.D. accepts. To confirm in-network status with your specific health plan, contact Mr. John Greenwald M.D. directly at (301) 319-8278.
Frequently asked
Yes. NPI 1437560554 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Hospitalist 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) 319-8278.
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 Greenwald M.D. is a Type-1 individual NPI.