Quick answers
- Does Maria Arsyl D. Dejesus accept Medicare assignment?
- Yes. Medicare's clinician data says Maria Arsyl D. Dejesus 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 Maria Arsyl D. Dejesus see?
- In 2024, CMS data shows 147 Original Medicare patients and 6,580 services for Maria Arsyl D. Dejesus. This counts Original Medicare only and measures volume, not quality.
- What is Maria Arsyl D. Dejesus's NPI number?
- 1285662049. 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 Maria Arsyl D. Dejesus, 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 | 147 |
|---|---|
| Services billed to Medicare | 6,580 |
| Different services or procedures | 80 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)4,250 services
- Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)435 services
- Ct guidance for insertion of radiation therapy fields (77014)384 services
- Continuing radiation therapy consultation per week (77336)129 services
- Radiation treatment management, 5 treatment sessions (77427)129 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%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- Arthritis46%
- Ischemic heart disease31%
- Diabetes30%
Hospitals where Maria Arsyl D. Dejesus works
Medicare's Facility Affiliation Data lists Maria Arsyl D. Dejesus 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.
- Albany Medical Center HospitalAlbany, NY · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 330013
- Nathan Littauer HospitalGloversville, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330276
- Saratoga HospitalSaratoga Springs, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330222
- St Mary's HealthcareAmsterdam, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330047
Practice locations
Addresses where Maria Arsyl D. Dejesus is enrolled with Medicare (CMS data updated October 2, 2026).
- 1700 Riverfront CtrAmsterdam, NY 12010 (518) 843‑0020
Group practices
Medicare enrollment lists Maria Arsyl D. Dejesus as a member of this group (CMS data updated October 2, 2026).
- New York Oncology Hematology PC82 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Amsterdam
Clinicians with the same Medicare primary specialty in Amsterdam, NY — not a recommendation.
Other clinicians in New York Oncology Hematology PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285662049 |
| 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