Quick answers
- Does Leslie A. Mumaw accept Medicare assignment?
- Yes. Medicare's clinician data says Leslie A. Mumaw 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 Leslie A. Mumaw see?
- In 2024, CMS data shows 47 Original Medicare patients and 53 services for Leslie A. Mumaw. This counts Original Medicare only and measures volume, not quality.
- What is Leslie A. Mumaw's NPI number?
- 1063528172. 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 Leslie A. Mumaw, 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 | 47 |
|---|---|
| Services billed to Medicare | 53 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
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%
- Arthritis72%
- Ischemic heart disease45%
- Depression45%
- Anxiety45%
Hospitals where Leslie A. Mumaw works
Medicare's Facility Affiliation Data lists Leslie A. Mumaw 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.
- MyMichigan Medical Center AlmaAlma, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230030
- MyMichigan Medical Center ClareClare, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 230180
Practice locations
Addresses where Leslie A. Mumaw is enrolled with Medicare (CMS data updated October 2, 2026).
- 25500 Meadowbrook Rd, Suite 110Novi, MI 48375 (248) 477‑2200
- 300 E Warwick DrAlma, MI 48801 (989) 463‑1101
- 3800 Centennial DrGrass Lake, MI 49240 (517) 701‑3100
Group practices
Medicare enrollment lists Leslie A. Mumaw as a member of these groups (CMS data updated October 2, 2026).
- Monaco Management LLC37 clinicians in the group
- Novi Aas LLC34 clinicians in the group
Specialties
- Anesthesiologyprimary
- Interventional Pain Managementalso
Other anesthesiologists in Novi
Clinicians with the same Medicare primary specialty in Novi, MI — not a recommendation.
Other clinicians in Monaco Management LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Ohio |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063528172 |
| 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