Quick answers
- Does Margaret S. Fitzsimmons accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret S. Fitzsimmons 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 Margaret S. Fitzsimmons see?
- In 2024, CMS data shows 172 Original Medicare patients and 1,178 services for Margaret S. Fitzsimmons. This counts Original Medicare only and measures volume, not quality.
- What is Margaret S. Fitzsimmons's NPI number?
- 1689617672. 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 Margaret S. Fitzsimmons, 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 | 172 |
|---|---|
| Services billed to Medicare | 1,178 |
| Different services or procedures | 46 |
| 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)280 services
- Hemoglobin a1c level, by device for home use (83037)127 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)112 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)98 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)94 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%
- Arthritis46%
- Diabetes35%
- Depression34%
- Chronic kidney disease24%
Hospitals where Margaret S. Fitzsimmons works
Medicare's Facility Affiliation Data lists Margaret S. Fitzsimmons 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.
- Community Hospital NorthIndianapolis, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150169
- Hancock Regional HospitalGreenfield, IN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 150037
- Indiana University HealthIndianapolis, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150056
Practice locations
Addresses where Margaret S. Fitzsimmons is enrolled with Medicare (CMS data updated October 2, 2026).
- 1515 N State StGreenfield, IN 46140
- 801 N StateGreenfield, IN 46140
- 801 N State StGreenfield, IN 46140
- 801 N State St 3, Central Indiana AMG Specialty HospitalGreenfield, IN 46140 (317) 477‑6789
- 8535 N Clearview DrMcCordsville, IN 46055
Group practices
Medicare enrollment lists Margaret S. Fitzsimmons as a member of this group (CMS data updated October 2, 2026).
- Hancock Physician Network LLC140 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Greenfield
Clinicians with the same Medicare primary specialty in Greenfield, IN — not a recommendation.
Other clinicians in Hancock Physician Network LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 1986 (40 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689617672 |
| 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