Quick answers
- Which hospitals does Colin Leffert work at?
- Medicare's official clinician data lists Colin Leffert at 2 hospitals: AdventHealth Avista and HCA HealthOne Presbyterian St. Lukes. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Colin Leffert see patients?
- Medicare's clinician data lists 5 practice locations, including Louisville, CO, Thornton, CO and Denver, CO. Call before your visit to confirm the address.
- What is Colin Leffert's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Gastroenterology.
- Does Colin Leffert accept Medicare assignment?
- Yes. Medicare's clinician data says Colin Leffert accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Colin Leffert offer telehealth?
- Medicare's clinician data says Colin Leffert offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Colin Leffert?
- (303) 643-1159, as listed in official Medicare / NPI Registry data.
- What is Colin Leffert's NPI number?
- 1881127140. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Colin Leffert works
Medicare's Facility Affiliation Data lists Colin Leffert at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- AdventHealth AvistaLouisville, CO · Acute Care Hospital · CCN 060103
- HCA HealthOne Presbyterian St. LukesDenver, CO · Acute Care Hospital · CCN 060014
Practice locations
Addresses where Colin Leffert is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Health Park DrLouisville, CO 80027 (303) 643‑1159
- 10001 Washington StThornton, CO 80229 (303) 252‑4442
- 2535 S Downing StDenver, CO 80210 (303) 778‑5797
- 355 Union Blvd, Suite 200Lakewood, CO 80228 (303) 463‑3900
- 80 Health Park DrLouisville, CO 80027
Group practices
Medicare enrollment lists Colin Leffert as a member of these groups (CMS data updated 2026-10-02).
- Portercare Adventist Health System774 clinicians in the group
- Rocky Mountain Gastroenterology Associates, PLLC36 clinicians in the group
Specialties
- Internal Medicineprimary
- Gastroenterologyalso
Other internal medicine doctors in Louisville
Clinicians with the same Medicare primary specialty in Louisville, CO — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Marian University College Of Osteopathic Medicine |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1881127140 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians