Quick answers
- Does Nestor R. Zenarosa accept Medicare assignment?
- Yes. Medicare's clinician data says Nestor R. Zenarosa 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 Nestor R. Zenarosa see?
- In 2024, CMS data shows 31 Original Medicare patients and 61 services for Nestor R. Zenarosa. This counts Original Medicare only and measures volume, not quality.
- What is Nestor R. Zenarosa's NPI number?
- 1629096375. 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 Nestor R. Zenarosa, 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 | 31 |
|---|---|
| Services billed to Medicare | 61 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 88 |
Most frequent services
- Influenza vaccine, inactivated (90653)16 services
- Administration of influenza virus vaccine (G0008)16 services
- Admn sarscov2 vacc 1 dose (90480)14 services
- Sarscv2 vac 30mcg trs-suc im (91320)13 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%
- Heart failure65%
- High cholesterol61%
- Alzheimer's disease or dementia61%
- Chronic kidney disease58%
- Atrial fibrillation55%
Practice locations
Addresses where Nestor R. Zenarosa is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Zotec WayCarmel, IN 46032
- 4835 Lbj Fwy, Suite 900Dallas, TX 75244
- PO BoxIndianapolis, IN 46206
Specialties
- Internal Medicineprimary
- Emergency Medicinealso
Other internal medicine doctors in Carmel
Clinicians with the same Medicare primary specialty in Carmel, IN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629096375 |
| 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