Quick answers
- Does Karoll Cortez Rivero accept Medicare assignment?
- Yes. Medicare's clinician data says Karoll Cortez Rivero 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 Karoll Cortez Rivero see?
- In 2024, CMS data shows 246 Original Medicare patients and 565 services for Karoll Cortez Rivero. This counts Original Medicare only and measures volume, not quality.
- What is Karoll Cortez Rivero's NPI number?
- 1285926915. 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 Karoll Cortez Rivero, 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 | 246 |
|---|---|
| Services billed to Medicare | 565 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)160 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)112 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)103 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)41 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)35 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 disease48%
- Diabetes47%
- Ischemic heart disease46%
Hospitals where Karoll Cortez Rivero works
Medicare's Facility Affiliation Data lists Karoll Cortez Rivero 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.
- Greater Baltimore Medical CenterBaltimore, MD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 210044
Practice locations
Addresses where Karoll Cortez Rivero is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.
- 3701 N Charles St, South Chapman Building Suite 102Towson, MD 21204
- 6565 N Charles StBaltimore, MD 21204
- 6569 N Charles StBaltimore, MD 21204
- 6569 N Charles St, Suite 505Baltimore, MD 21204 (443) 849‑2658
- 6569 N Charles St Ppw Room, 307 Gyn SpecialistsBaltimore, MD 21204 (443) 849‑6123
Group practices
Medicare enrollment lists Karoll Cortez Rivero as a member of this group (CMS data updated October 2, 2026).
- Greater Baltimore Medical Center354 clinicians in the group
Specialties
- Infectious Diseaseprimary
Other infectious disease doctors in Towson
Clinicians with the same Medicare primary specialty in Towson, MD — not a recommendation.
Other clinicians in Greater Baltimore Medical Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285926915 |
| 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