Quick answers
- Does Gregory F. Winters accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory F. Winters accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Gregory F. Winters see?
- In 2024, CMS data shows 700 Original Medicare patients and 885 services for Gregory F. Winters. This counts Original Medicare only and measures volume, not quality.
- What is Gregory F. Winters's NPI number?
- 1891761037. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Gregory F. Winters, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 700 |
|---|---|
| Services billed to Medicare | 885 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)225 services
- Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)143 services
- Colorectal cancer screening; colonoscopy on individual at high risk (G0105)103 services
- Biopsy of large bowel using a flexible endoscope (45380)83 services
- Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk (G0121)72 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol69%
- High blood pressure63%
- Arthritis45%
- Diabetes21%
- Depression20%
- Ischemic heart disease18%
Hospitals where Gregory F. Winters works
Medicare's Facility Affiliation Data lists Gregory F. Winters at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Asante Rogue Regional Medical CenterMedford, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380018
- Asante Three Rivers Medical CenterGrants Pass, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380002
- Providence Medford Medical CenterMedford, OR · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 380075
- Sky Lakes Medical CenterKlamath Falls, OR · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 380050
Practice locations
Addresses where Gregory F. Winters is enrolled with Medicare (CMS data updated October 2, 2026).
- 2825 E Barnett RdMedford, OR 97504 (541) 789‑7000
- 2860 Creekside CirMedford, OR 97504 (541) 779‑8367
- 625 SW Ramsey Ave, Suite AGrants Pass, OR 97527 (541) 507‑2290
Group practices
Medicare enrollment lists Gregory F. Winters as a member of these groups (CMS data updated October 2, 2026).
- Asante Physician Partners225 clinicians in the group
- Gastroenterology Consultants PC13 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Medford
Clinicians with the same Medicare primary specialty in Medford, OR — not a recommendation.
Other clinicians in Asante Physician Partners
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891761037 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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