Quick answers
- Does Shannon B. Rider accept Medicare assignment?
- Yes. Medicare's clinician data says Shannon B. Rider 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 Shannon B. Rider see?
- In 2024, CMS data shows 128 Original Medicare patients and 133 services for Shannon B. Rider. This counts Original Medicare only and measures volume, not quality.
- What is Shannon B. Rider's NPI number?
- 1508846429. 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 Shannon B. Rider, 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 | 128 |
|---|---|
| Services billed to Medicare | 133 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)64 services
- Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)25 services
- Electrocardiogram (ecg) up to 30 days continuous with symptom monitoring, transmission and review and report by health care professional (93272)14 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 cholesterol72%
- Arthritis52%
- Anxiety44%
- Diabetes35%
- Depression32%
Hospitals where Shannon B. Rider works
Medicare's Facility Affiliation Data lists Shannon B. Rider 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.
- Ferrell Hospital Community FoundationsEldorado, IL · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 141324
- Franklin HospitalBenton, IL · Critical Access Hospital · Emergency services: listed by Medicare · CCN 141321
- Harrisburg Medical CenterHarrisburg, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140210
- 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
Practice locations
Addresses where Shannon B. Rider is enrolled with Medicare (CMS data updated October 2, 2026).
- 405 Rushing DrHerrin, IL 62948 (618) 993‑3300
- 502 W Saint Louis St, Suite 4West Frankfort, IL 62896 (618) 937‑3400
Group practices
Medicare enrollment lists Shannon B. Rider as a member of these groups (CMS data updated October 2, 2026).
- Southern Illinois Medical Services NFP334 clinicians in the group
- Logan Primary Care Service Corp.34 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Herrin
Clinicians with the same Medicare primary specialty in Herrin, IL — not a recommendation.
Other clinicians in Southern Illinois Medical Services NFP
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Southern Illinois University School Of Medicine |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1508846429 |
| 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