WALTER GRENELL JR. DO
NPI 1669714994
Emergency Medicine - Emergency Medical Services in Wheat Ridge, CO
About Walter Grenell Jr. Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WALTER GRENELL JR. DO (NPI 1669714994) is an individual emergency medical services provider in Wheat Ridge, Colorado, licensed in Colorado (0056486) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS, is affiliated with Bsa Hospital, and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Walter Grenell Jr. Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bsa Hospital
Acute Care Hospitals · Amarillo, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WHEAT RIDGE, CO 80033
WHEAT RIDGE, CO 80033
WHEAT RIDGE, CO 80033
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Walter Grenell's NPI number?
The NPI number for Walter Grenell is 1669714994. It was assigned to this individual provider in the NPPES registry on March 25, 2013.
Where is Walter Grenell located?
Walter Grenell practices at 8300 W 38th Ave, Wheat Ridge, CO 80033. The listed phone number is (303) 425-4500.
What is Walter Grenell's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
Is Walter Grenell enrolled in Medicare?
Yes. Walter Grenell is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Walter Grenell accept?
Health plans from Blue Cross and Blue Shield of Texas list Walter Grenell as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Walter Grenell affiliated with any hospitals?
According to CMS data, Walter Grenell is affiliated with Bsa Hospital.
When was this NPI record last updated?
The NPPES record for Walter Grenell was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Walter Grenell Jr., DO · NPI 1669714994
Emergency Medical Services physician in Wheat Ridge, Colorado. Individual provider, active in the CMS NPPES registry since March 25, 2013.
## Identity
- **NPI:** 1669714994 (Entity type: Individual)
- **Enumerated:** March 25, 2013
- **Primary specialty:** Emergency Medicine - Emergency Medical Services · taxonomy 207PE0004X
- **State license:** 0056486 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 8300 W 38TH AVE, Wheat Ridge, CO 80033-6005
- **Phone:** (303) 425-4500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** September 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1669714994) · Data from the CMS NPPES public registry.