Quick answers
- Does Maureen J. Kelly accept Medicare assignment?
- Yes. Medicare's clinician data says Maureen J. Kelly 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 Maureen J. Kelly see?
- In 2024, CMS data shows 181 Original Medicare patients and 2,368 services for Maureen J. Kelly. This counts Original Medicare only and measures volume, not quality.
- What is Maureen J. Kelly's NPI number?
- 1235275959. 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 Maureen J. Kelly, 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 | 181 |
|---|---|
| Services billed to Medicare | 2,368 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 84 |
Most frequent services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)1,500 services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)780 services
- Nursing facility discharge management, more than 30 minutes (99316)49 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)37 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%
- Arthritis75%
- Ischemic heart disease69%
- Heart failure59%
- Diabetes55%
Hospitals where Maureen J. Kelly works
Medicare's Facility Affiliation Data lists Maureen J. Kelly 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.
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330185
- Suny/Stony Brook University HospitalStony Brook, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330393
Practice locations
Addresses where Maureen J. Kelly is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 Nicolls RdStony Brook, NY 11794 (631) 444‑1560
- 101 Nicolls RdStony Brook, NY 11794 (631) 444‑1560
- Lauterbur DrStony Brook, NY 11794 (632) 638‑1000
- PO Box, Suite 1554Stony Brook, NY 11790
Group practices
Medicare enrollment lists Maureen J. Kelly as a member of this group (CMS data updated October 2, 2026).
- Stony Brook Internists University Faculty Practice Corporation428 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Stony Brook
Clinicians with the same Medicare primary specialty in Stony Brook, NY — not a recommendation.
Other clinicians in Stony Brook Internists University Faculty Practice Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1989 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1235275959 |
| 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