Walter Grenell DO
About this NPIWhat this record shows.
NPI 1669714994 is registered to Walter Grenell DO, a Emergency Medical Services (Emergency Medicine) Physician practising at 8300 W 38th Ave in Wheat Ridge, Colorado. Emergency Medical Services (Emergency Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Walter Grenell DO has been enumerated in the National Provider Identifier (NPI) registry since 2013.
Your brand here.
Medicare enrollment
This provider holds 4 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
- I20160822002826Emergency MedicineCO
- I20190107000849Emergency MedicineHI
- I20230208000641Emergency MedicineAK
- I20250919004217Emergency MedicineTX
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 Walter Grenell DO accepts. To confirm in-network status with your specific health plan, contact Walter Grenell DO directly at (303) 425-4500.
Frequently asked
Yes. NPI 1669714994 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Emergency Medical Services (Emergency Medicine) 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 (303) 425-4500.
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. Walter Grenell DO is a Type-1 individual NPI.