Quick answers
- Does Mehdi Shahidi accept Medicare assignment?
- Yes. Medicare's clinician data says Mehdi Shahidi 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 Mehdi Shahidi see?
- In 2024, CMS data shows 171 Original Medicare patients and 477 services for Mehdi Shahidi. This counts Original Medicare only and measures volume, not quality.
- What is Mehdi Shahidi's NPI number?
- 1538398508. 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 Mehdi Shahidi, 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 | 171 |
|---|---|
| Services billed to Medicare | 477 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Critical care, first 30-74 minutes (99291)244 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)101 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)58 services
- Insertion of artery tube for blood sampling or infusion through skin (36620)18 services
- Aspiration of fluid from chest cavity using imaging guidance (32555)16 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 cholesterol75%
- Ischemic heart disease75%
- Heart failure63%
- Atrial fibrillation57%
- Chronic kidney disease56%
Hospitals where Mehdi Shahidi works
Medicare's Facility Affiliation Data lists Mehdi Shahidi 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.
- Memorial Medical CenterSpringfield, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140148
- St Anthonys Memorial HospitalEffingham, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140032
- St Johns HospitalSpringfield, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140053
- St Marys HospitalDecatur, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 140166
- Taylorville Memorial HospitalTaylorville, IL · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 141339
Practice locations
Addresses where Mehdi Shahidi is enrolled with Medicare (CMS data updated October 2, 2026).
- 775 Engineering AveSpringfield, IL 62703 (217) 522‑4300
- 800 E Carpenter StSpringfield, IL 62702 (217) 544‑6464
Group practices
Medicare enrollment lists Mehdi Shahidi as a member of these groups (CMS data updated October 2, 2026).
- Springfield Clinic, LLP687 clinicians in the group
- Cep America Illinois Intensivists48 clinicians in the group
Specialties
- Internal Medicineprimary
- Pulmonary Diseasealso
Other internal medicine doctors in Springfield
Clinicians with the same Medicare primary specialty in Springfield, IL — not a recommendation.
Other clinicians in Springfield Clinic, LLP
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538398508 |
| 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