Search › Colorado › Gastroenterology Physician
Kevin Sieja, M.D
NPI 1952356677 · on the registry since 2006
Practice
- Address
- 4500 E 9th Ave Ste 720s
Denver, CO 80220 - Phone
- (303) 355-3525
- Fax
- (303) 355-0255
- Organisation at this address
- Thomas M Li
Ent Of Denver, Pc
Hca-Healthone, Llc
Mednow Clinics, Inc
Proactive Health, IncInferred from a shared address, not stated in the registry. - Clinicians at this address
- 106
Additional practice sites
- 50 Buck Creek Rd Ste 200, Avon, CO
- 180 S Frontage Rd W Ste 5800, Vail, CO
Registry record
- Primary taxonomy
- Gastroenterology Physician
207RG0100X
- Licence states on file
- CO
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2026-06-30
Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in Colorado