Quick answers
- Does Rodney C. Guiseppi accept Medicare assignment?
- Yes. Medicare's clinician data says Rodney C. Guiseppi 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 Rodney C. Guiseppi see?
- In 2024, CMS data shows 115 Original Medicare patients and 2,205 services for Rodney C. Guiseppi. This counts Original Medicare only and measures volume, not quality.
- What is Rodney C. Guiseppi's NPI number?
- 1801393855. 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 Rodney C. Guiseppi, 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 | 115 |
|---|---|
| Services billed to Medicare | 2,205 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, faricimab-svoa, 0.1 mg (J2777)1,860 services
- Imaging of retina (92134)94 services
- Established patient complete exam of visual system (92014)87 services
- Injection of drug into eye (67028)32 services
- Established patient problem focused exam of visual system (92012)21 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 blood pressure75%
- High cholesterol67%
- Arthritis55%
- Diabetes38%
- Anxiety30%
- Ischemic heart disease29%
Hospitals where Rodney C. Guiseppi works
Medicare's Facility Affiliation Data lists Rodney C. Guiseppi 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.
- Good Samaritan Regional Health CenterMount Vernon, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140046
- Herrin HospitalHerrin, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 140011
- Memorial Hospital of CarbondaleCarbondale, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 140164
- St Joseph Memorial HospitalMurphysboro, IL · Critical Access Hospital · Emergency services: listed by Medicare · CCN 141334
Practice locations
Addresses where Rodney C. Guiseppi is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 16; the Medicare profile lists all.
- 1102 N Main StBenton, IL 62812 (618) 439‑2020
- 1180 W Saint Louis StNashville, IL 62263 (618) 327‑3900
- 1200 W Deyoung StMarion, IL 62959 (618) 993‑5686
- 1204 US 45Eldorado, IL 62930 (618) 273‑6220
- 165 Plaza DrAnna, IL 62906 (618) 833‑8359
Group practices
Medicare enrollment lists Rodney C. Guiseppi as a member of this group (CMS data updated October 2, 2026).
- Marion Eye Centers Ltd39 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Other clinicians in Marion Eye Centers Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801393855 |
| 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