Dr. William Holloway MD
About this NPIWhat this record shows.
NPI 1649396334 is registered to Dr. William Holloway MD, a Vascular & Interventional Radiology Physician practising at 226 N Boyle Ave Apt 2n in Saint Louis, Missouri. Vascular & Interventional Radiology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. William Holloway MD has been enumerated in the National Provider Identifier (NPI) registry since 2007.
Your brand here.
Medicare enrollment
This provider holds 3 Medicare enrollments 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
- I20090714000103Diagnostic RadiologyMO
- I20180110001040Diagnostic RadiologyKS
- I20241104002209Diagnostic RadiologyCO
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 Dr. William Holloway MD accepts. To confirm in-network status with your specific health plan, contact Dr. William Holloway MD directly at (314) 535-3601.
Frequently asked
Yes. NPI 1649396334 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Vascular & Interventional Radiology 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 (314) 535-3601.
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. Dr. William Holloway MD is a Type-1 individual NPI.