Quick answers
- Does Charles J. Demarco accept Medicare assignment?
- Yes. Medicare's clinician data says Charles J. Demarco 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 Charles J. Demarco see?
- In 2024, CMS data shows 1,108 Original Medicare patients and 2,502 services for Charles J. Demarco. This counts Original Medicare only and measures volume, not quality.
- What is Charles J. Demarco's NPI number?
- 1285634576. 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 Charles J. Demarco, 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 | 1,108 |
|---|---|
| Services billed to Medicare | 2,502 |
| Different services or procedures | 100 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Complete ultrasound scan of pelvis (76856)349 services
- Complete ultrasound scan behind abdominal cavity (76770)344 services
- Mri scan of brain without contrast (70551)183 services
- Ultrasound scan of pelvic region through rectum (76872)176 services
- Screening 3d breast mammography (77063)123 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%
- Arthritis54%
- Diabetes51%
- Ischemic heart disease34%
- Anxiety25%
Practice locations
Addresses where Charles J. Demarco is enrolled with Medicare (CMS data updated October 2, 2026).
- 1408 Ocean Ave, Fl 3Brooklyn, NY 11230 (718) 252‑0101
- 27 New Dorp LnStaten Island, NY 10306 (718) 667‑3800
- 586 Midland Ave, Suite BStaten Island, NY 10306 (347) 201‑5081
- 6243 Woodhaven BlvdRego Park, NY 11374 (718) 507‑4700
Group practices
Medicare enrollment lists Charles J. Demarco as a member of these groups (CMS data updated October 2, 2026).
- Medical Doctor Milena Kolesnikova PC7 clinicians in the group
- Alpha Neurology, PC4 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Nuclear Medicinealso
Other radiologists in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Other clinicians in Medical Doctor Milena Kolesnikova PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285634576 |
| 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