James WarrenM.D.
James Warren, M.D. is an Otolaryngology provider in Boulder, CO affiliated with 1 ambulatory surgery center in CO, as of July 2026.
- NPI1194743450
- Registered2006
- Centers1
- StateCO
- Class of1984
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
Education
Education on record as of August 2026.
James Warren at a glance
- Provider
- James Warren
- Credential
- M.D.
- Specialty
- Otolaryngology
- Procedures
- Otolaryngology CPT codes
- Location
- Boulder, CO
- Medical school
- University of Missouri, Columbia School of Medicine
- Graduated
- 1984
- NPI registered
- 2006
- NPI
- 1194743450
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does James Warren practice?
James Warren, M.D. is based in Boulder, CO and is affiliated with 1 ambulatory surgery center: Foothills Surgery Center LLC in Boulder, CO. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is James Warren's NPI number?
James Warren's National Provider Identifier (NPI) is 1194743450, registered in 2006. Specialty on record: Otolaryngology; credential M.D.
Where did James Warren go to medical school?
James Warren, M.D. attended University of Missouri, Columbia School of Medicine, graduating in 1984.
How many Otolaryngology providers in Colorado work at ambulatory surgery centers?
45 Otolaryngology surgeons and proceduralists in Colorado are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, James Warren among them. The Colorado Otolaryngology directory lists each one by city with credential, NPI, and center affiliations.
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