Alexander Nissen
About this NPIWhat this record shows.
NPI 1730540386 is registered to Alexander Nissen, a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician practising at Walter Reed National Military Medical Center, 8901 Wisconsin Ave in Bethesda, Maryland. Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Alexander Nissen has been enumerated in the National Provider Identifier (NPI) registry since 2016.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment 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
- I20250809000547Cardiac SurgeryDC
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 Alexander Nissen accepts. To confirm in-network status with your specific health plan, contact Alexander Nissen directly at (703) 401-2509.
Frequently asked
Yes. NPI 1730540386 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 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 (703) 401-2509.
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. Alexander Nissen is a Type-1 individual NPI.