Quick answers
- Does Shirley A. Nagel accept Medicare assignment?
- Yes. Medicare's clinician data says Shirley A. Nagel 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 Shirley A. Nagel see?
- In 2024, CMS data shows 71 Original Medicare patients and 163 services for Shirley A. Nagel. This counts Original Medicare only and measures volume, not quality.
- What is Shirley A. Nagel's NPI number?
- 1043213366. 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 Shirley A. Nagel, 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 | 71 |
|---|---|
| Services billed to Medicare | 163 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 84 |
Most frequent services
- Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)58 services
- Insertion of needle into vein for collection of blood sample (36415)20 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)17 services
- Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)16 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%
- Arthritis72%
- Chronic kidney disease52%
- Ischemic heart disease44%
- Depression41%
Practice locations
Addresses where Shirley A. Nagel is enrolled with Medicare (CMS data updated October 2, 2026).
- 3619 Lake Ctr DrMount Dora, FL 32757 (352) 383‑8222
Group practices
Medicare enrollment lists Shirley A. Nagel as a member of this group (CMS data updated October 2, 2026).
- Adult Medicine of Lake County Inc3 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Mount Dora
Clinicians with the same Medicare primary specialty in Mount Dora, FL — not a recommendation.
Other clinicians in Adult Medicine of Lake County Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043213366 |
| 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