Quick answers
- Which hospitals does Gregory Day work at?
- Medicare's official clinician data lists Gregory Day at 2 hospitals: Uch-Memorial Health System and UCHealth Highlands Ranch Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory Day see patients?
- Medicare's clinician data lists 1 practice location in Colorado Springs, CO. Call before your visit to confirm the address.
- What is Gregory Day's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Gregory Day accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory Day 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 Gregory Day?
- (719) 364-6487, as listed in official Medicare / NPI Registry data.
- What is Gregory Day's NPI number?
- 1295024370. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory Day works
Medicare's Facility Affiliation Data lists Gregory Day at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Uch-Memorial Health SystemColorado Springs, CO · Acute Care Hospital · CCN 060022
- UCHealth Highlands Ranch HospitalHighlands Ranch, CO · Acute Care Hospital · CCN 060132
Practice locations
Addresses where Gregory Day is enrolled with Medicare (CMS data updated 2026-10-02).
- 1400 E Boulder St, Suite 600 Uchmg General and Vascular SurgeryColorado Springs, CO 80909 (719) 364‑6487
Group practices
Medicare enrollment lists Gregory Day as a member of this group (CMS data updated 2026-10-02).
- Poudre Valley Medical Group LLC2,440 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Colorado Springs
Clinicians with the same Medicare primary specialty in Colorado Springs, CO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295024370 |
| 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