Quick answers
- Does Carlos J. Marrero accept Medicare assignment?
- Yes. Medicare's clinician data says Carlos J. Marrero 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 Carlos J. Marrero see?
- In 2024, CMS data shows 124 Original Medicare patients and 664 services for Carlos J. Marrero. This counts Original Medicare only and measures volume, not quality.
- What is Carlos J. Marrero's NPI number?
- 1356417166. 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 Carlos J. Marrero, 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 | 124 |
|---|---|
| Services billed to Medicare | 664 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)463 services
- Measurement of brain wave activity (eeg), 2-12 hours (95705)57 services
- Measurement of brain wave activity (eeg), 61-84 hours with health care professional review and report (95723)57 services
- Measurement of brain wave activity (eeg), awake and asleep (95819)31 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)25 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 cholesterol69%
- High blood pressure61%
- Arthritis48%
- Anxiety40%
- Depression31%
- Diabetes27%
Hospitals where Carlos J. Marrero works
Medicare's Facility Affiliation Data lists Carlos J. Marrero 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.
- Excela Health - Frick HospitalMount Pleasant, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390217
- Excela Health Latrobe HospitalLatrobe, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390219
- Excela Health Westmoreland Regional HospitalGreensburg, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390145
Practice locations
Addresses where Carlos J. Marrero is enrolled with Medicare (CMS data updated October 2, 2026).
- 324 Unity PlzLatrobe, PA 15650 (724) 532‑1511
Specialties
- Neurologyprimary
Other neurologists in Latrobe
Clinicians with the same Medicare primary specialty in Latrobe, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Central Del Caribe Escuela De Medicina |
| Graduation year | 1981 (45 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356417166 |
| 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