Quick answers
- Does Marcia M. Rentz accept Medicare assignment?
- Yes. Medicare's clinician data says Marcia M. Rentz 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 Marcia M. Rentz see?
- In 2024, CMS data shows 34 Original Medicare patients and 38 services for Marcia M. Rentz. This counts Original Medicare only and measures volume, not quality.
- What is Marcia M. Rentz's NPI number?
- 1366479529. 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 Marcia M. Rentz, 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 | 34 |
|---|---|
| Services billed to Medicare | 38 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)14 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%
- Arthritis75%
- Ischemic heart disease32%
Practice locations
Addresses where Marcia M. Rentz is enrolled with Medicare (CMS data updated October 2, 2026).
- 1917 Worth CtBradenton, FL 34211 (941) 792‑1404
Group practices
Medicare enrollment lists Marcia M. Rentz as a member of this group (CMS data updated October 2, 2026).
- Capital Anesthesia Solutions of Florida II, LLC355 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Bradenton
Clinicians with the same Medicare primary specialty in Bradenton, FL — not a recommendation.
Other clinicians in Capital Anesthesia Solutions of Florida II, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Kansas School Of Med (kc/wich/sal) |
| 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) | 1366479529 |
| 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
- 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