Quick answers
- Does Rachel J. O'Rourke accept Medicare assignment?
- Yes. Medicare's clinician data says Rachel J. O'Rourke 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 Rachel J. O'Rourke see?
- In 2024, CMS data shows 44 Original Medicare patients and 71 services for Rachel J. O'Rourke. This counts Original Medicare only and measures volume, not quality.
- What is Rachel J. O'Rourke's NPI number?
- 1174181945. 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 Rachel J. O'Rourke, 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 | 44 |
|---|---|
| Services billed to Medicare | 71 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Critical care, each additional 30 minutes (99292)28 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)18 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%
- Ischemic heart disease66%
- Diabetes57%
- Alzheimer's disease or dementia52%
- Arthritis45%
Practice locations
Addresses where Rachel J. O'Rourke is enrolled with Medicare (CMS data updated October 2, 2026).
- 48 Route 25aSmithtown, NY 11787 (631) 751‑3000
Group practices
Medicare enrollment lists Rachel J. O'Rourke as a member of this group (CMS data updated October 2, 2026).
- North Shore Hematology Oncology Associates PC479 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Smithtown
Clinicians with the same Medicare primary specialty in Smithtown, NY — not a recommendation.
Other clinicians in North Shore Hematology Oncology Associates PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174181945 |
| 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