Quick answers
- Does Mary N. Walsh accept Medicare assignment?
- Yes. Medicare's clinician data says Mary N. Walsh 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 Mary N. Walsh see?
- In 2024, CMS data shows 244 Original Medicare patients and 537 services for Mary N. Walsh. This counts Original Medicare only and measures volume, not quality.
- What is Mary N. Walsh's NPI number?
- 1033175310. 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 Mary N. Walsh, 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 | 244 |
|---|---|
| Services billed to Medicare | 537 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)299 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)52 services
- Evaluation of lower heart chamber assist device (93750)38 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)28 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)23 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%
- Heart failure70%
- Ischemic heart disease61%
- Chronic kidney disease44%
- Atrial fibrillation43%
Hospitals where Mary N. Walsh works
Medicare's Facility Affiliation Data lists Mary N. Walsh 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.
- Ascension St Vincent HospitalIndianapolis, IN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 150084
- St Vincent Heart CenterCarmel, IN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 150153
Practice locations
Addresses where Mary N. Walsh is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 10580 N Meridian StCarmel, IN 46290 (317) 583‑5000
- 10590 N Meridian StCarmel, IN 46290
- 13861 Olio RdFishers, IN 46037
- 2001 W 86th StIndianapolis, IN 46260 (317) 338‑2345
- 250 W 96th St, Suite 520Indianapolis, IN 46260
Group practices
Medicare enrollment lists Mary N. Walsh as a member of these groups (CMS data updated October 2, 2026).
- St Vincent Medical Group Inc736 clinicians in the group
- St Vincent Physician Services Hospital and Health Care Center275 clinicians in the group
Specialties
- Advanced Heart Failure and Transplant Cardiologyprimary
- Cardiovascular Disease (Cardiology)also
- Internal Medicinealso
Find other Advanced Heart Failure and Transplant Cardiology doctors in Indiana →
Other heart failure and transplant cardiologists in Indiana
Clinicians with the same Medicare primary specialty in Indiana — not a recommendation.
Other clinicians in St Vincent Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 1983 (43 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1033175310 |
| 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