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

James Douglas Warren, MD

Individual provider Otolaryngology Physician · NPI 1194743450

James Douglas Warren, MD is an Otolaryngology in Boulder, Colorado. Graduated from University of Missouri, Columbia School of Medicine in 1984, 42 years ago. Practices with Boulder Valley Ear Nose and Throat Associates PC, a 15-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
42
Trained at
University of Missouri, Columbia School of Medicine
Licensed in
CO
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

4745 Arapahoe Ave Ste 130
Boulder, CO 80303-1080
Phone: (303) 443-2771
Fax: (303) 443-2784
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 29977 (CO)

Record details

NPI number1194743450
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 17, 2006
Last updated in NPPESMarch 7, 2023
Mailing address4745 Arapahoe Ave, Ste 130, Boulder, CO 80303-1080

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Also practisesSURGICAL ONCOLOGY
Medical schoolUNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Boulder Valley Ear Nose And Throat Associates Pc — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Boulder