Dr. Ryan Wassenaar D.O.
About this NPIWhat this record shows.
NPI 1457516288 is registered to Dr. Ryan Wassenaar D.O., a Hospitalist practising at 990 Oak Ridge Tpke in Oak Ridge, Tennessee. Hospitalist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Ryan Wassenaar D.O. has been enumerated in the National Provider Identifier (NPI) registry since 2008.
Your brand here.
Medicare enrollment
This provider holds 2 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
- I20090817000576Internal MedicineTN
- I20170309002700Internal MedicineAZ
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. Ryan Wassenaar D.O. accepts. To confirm in-network status with your specific health plan, contact Dr. Ryan Wassenaar D.O. directly at (865) 835-4304.
Frequently asked
Yes. NPI 1457516288 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 (865) 835-4304.
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. Ryan Wassenaar D.O. is a Type-1 individual NPI.