Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Walter Grenell Jr., DO

Individual provider Emergency Medical Services (Emergency Medicine) Physician · NPI 1669714994

Walter Grenell Jr., DO is an Emergency Medicine in Wheat Ridge, Colorado. Qualified in 2013, 13 years ago. Practices with Hawaii Emergency Physicians Associated Inc, a 115-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Alaska, Colorado and Texas.

Years since qualifying
13
Licensed in
AK, CO, TX
In the registry since
2013
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

8300 W 38th Ave
Wheat Ridge, CO 80033-6005
Phone: (303) 425-4500
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 250 Hospital Pl, Soldotna, AK 99669-6999 — (907) 714-4444

Specialties & licences

Emergency Medical Services (Emergency Medicine) Physician (primary) Taxonomy 207PE0004X · Licence 0056486 (CO)
Emergency Medical Services (Emergency Medicine) Physician Taxonomy 207PE0004X · Licence 200431 (AK)
Emergency Medicine Physician Taxonomy 207P00000X · Licence W0917 (TX)

Record details

NPI number1669714994
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 25, 2013
Last updated in NPPESSeptember 23, 2025
Certification dateSeptember 23, 2025
Mailing address8300 W 38th Ave, Wheat Ridge, CO 80033-6005

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Hawaii Emergency Physicians Associated Inc — 115 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Wheat Ridge