Quick answers
- Which hospitals does Louis Aviles work at?
- Medicare's official clinician data lists Louis Aviles at 3 hospitals: Altru Hospital, Banner Fort Collins Medical Center and Banner North Colorado Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Louis Aviles see patients?
- Medicare's clinician data lists 4 practice locations, including Grand Forks, ND, Fort Collins, CO and Greeley, CO. Call before your visit to confirm the address.
- What is Louis Aviles's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Louis Aviles accept Medicare assignment?
- Yes. Medicare's clinician data says Louis Aviles 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.
- What is the phone number for Louis Aviles?
- (701) 795-2000, as listed in official Medicare / NPI Registry data.
- What is Louis Aviles's NPI number?
- 1265492730. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Louis Aviles works
Medicare's Facility Affiliation Data lists Louis Aviles at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Altru HospitalGrand Forks, ND · Acute Care Hospital · CCN 350019
- Banner Fort Collins Medical CenterFort Collins, CO · Acute Care Hospital · CCN 060126
- Banner North Colorado Medical CenterGreeley, CO · Acute Care Hospital · CCN 060001
Practice locations
Addresses where Louis Aviles is enrolled with Medicare (CMS data updated 2026-10-02).
- 1380 S Columbia RdGrand Forks, ND 58201 (701) 795‑2000
- 4500 S Washington St, Suite BGrand Forks, ND 58201 (701) 732‑7400
- 4700 Lady Moon Dr, Suite C1Fort Collins, CO 80528 (970) 821‑4500
- 5890 W 13th St, Suite 104Greeley, CO 80634 (970) 810‑4475
Group practices
Medicare enrollment lists Louis Aviles as a member of these groups (CMS data updated 2026-10-02).
- Altru Health System684 clinicians in the group
- Banner Health Physicians Colorado LLC261 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Grand Forks
Clinicians with the same Medicare primary specialty in Grand Forks, ND — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1265492730 |
| 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