Quick answers
- Does Wesley B. Zwiefel accept Medicare assignment?
- Yes. Medicare's clinician data says Wesley B. Zwiefel 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 Wesley B. Zwiefel see?
- In 2024, CMS data shows 525 Original Medicare patients and 1,181 services for Wesley B. Zwiefel. This counts Original Medicare only and measures volume, not quality.
- What is Wesley B. Zwiefel's NPI number?
- 1619278074. 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 Wesley B. Zwiefel, 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 | 525 |
|---|---|
| Services billed to Medicare | 1,181 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)627 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)444 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)37 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)21 services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)17 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%
- Atrial fibrillation75%
- Ischemic heart disease59%
- Heart failure57%
- Arthritis48%
Hospitals where Wesley B. Zwiefel works
Medicare's Facility Affiliation Data lists Wesley B. Zwiefel 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.
- Decatur Memorial HospitalDecatur, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140135
- St Anthonys Memorial HospitalEffingham, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140032
- St Francis HospitalLitchfield, IL · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 141350
- 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
Practice locations
Addresses where Wesley B. Zwiefel is enrolled with Medicare (CMS data updated October 2, 2026).
- 1800 E Lake Shore Dr 6th FlrDecatur, IL 62521 (217) 422‑6100
- 619 E Mason StSpringfield, IL 62701 (217) 788‑0706
Group practices
Medicare enrollment lists Wesley B. Zwiefel as a member of this group (CMS data updated October 2, 2026).
- Prairie Cardiovascular Consultants Ltd90 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Decatur
Clinicians with the same Medicare primary specialty in Decatur, IL — not a recommendation.
Other clinicians in Prairie Cardiovascular Consultants Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1619278074 |
| 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