Quick answers
- Does Stewart M. Knoepp accept Medicare assignment?
- Yes. Medicare's clinician data says Stewart M. Knoepp 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 Stewart M. Knoepp see?
- In 2024, CMS data shows 542 Original Medicare patients and 1,289 services for Stewart M. Knoepp. This counts Original Medicare only and measures volume, not quality.
- What is Stewart M. Knoepp's NPI number?
- 1033300454. 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 Stewart M. Knoepp, 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 | 542 |
|---|---|
| Services billed to Medicare | 1,289 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)498 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)105 services
- Protein measurement, serum (84165)90 services
- Pap test (88141)77 services
- Cell examination of specimen, selective cellular enhancement technique (88112)74 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 pressure71%
- High cholesterol69%
- Arthritis51%
- Anxiety37%
- Diabetes34%
- Chronic kidney disease32%
Hospitals where Stewart M. Knoepp works
Medicare's Facility Affiliation Data lists Stewart M. Knoepp 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.
- Edward W Sparrow HospitalLansing, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230230
- Hillsdale HospitalHillsdale, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230037
- Oaklawn HospitalMarshall, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230217
- University of Michigan Health - Sparrow EatonCharlotte, MI · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 231327
- University of Michigan Health-Sparrow CarsonCarson City, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230208
Practice locations
Addresses where Stewart M. Knoepp is enrolled with Medicare (CMS data updated October 2, 2026).
- 1215 E Michigan Ave, Sparrow PathologyLansing, MI 48912 (517) 364‑2560
Group practices
Medicare enrollment lists Stewart M. Knoepp as a member of this group (CMS data updated October 2, 2026).
- Edward W Sparrow Hospital Association730 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Lansing
Clinicians with the same Medicare primary specialty in Lansing, MI — not a recommendation.
Other clinicians in Edward W Sparrow Hospital Association
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical University Of South Carolina College Of Medicine |
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1033300454 |
| 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