Quick answers
- Does Celine R. Dematteo accept Medicare assignment?
- Yes. Medicare's clinician data says Celine R. Dematteo 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 Celine R. Dematteo see?
- In 2024, CMS data shows 127 Original Medicare patients and 258 services for Celine R. Dematteo. This counts Original Medicare only and measures volume, not quality.
- What is Celine R. Dematteo's NPI number?
- 1598915431. 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 Celine R. Dematteo, 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 | 127 |
|---|---|
| Services billed to Medicare | 258 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Critical care, first 30-74 minutes (99291)125 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)94 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)17 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%
- Stroke or mini-stroke75%
- Arthritis56%
- Ischemic heart disease46%
- Diabetes43%
Hospitals where Celine R. Dematteo works
Medicare's Facility Affiliation Data lists Celine R. Dematteo 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.
- Long Island Jewish Medical CenterNew Hyde Park, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330195
- North Shore University HospitalManhasset, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330106
- Northern Westchester HospitalMount Kisco, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330162
- Phelps HospitalSleepy Hollow, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330261
Practice locations
Addresses where Celine R. Dematteo is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 11; the Medicare profile lists all.
- 10201 66th RdForest Hills, NY 11375 (718) 830‑4000
- 1111 Marcus AveNew Hyde Park, NY 11042
- 27005 75th AveNew Hyde Park, NY 11040
- 27005 76th Ave GfNew Hyde Park, NY 11040 (718) 470‑7501
- 300 Community DrManhasset, NY 11030
Group practices
Medicare enrollment lists Celine R. Dematteo as a member of this group (CMS data updated October 2, 2026).
- North Shore-Lij Medical PC6,440 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Forest Hills
Clinicians with the same Medicare primary specialty in Forest Hills, NY — not a recommendation.
Other clinicians in North Shore-Lij Medical PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Stony Brook, School Of Medicine |
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1598915431 |
| 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