Quick answers
- Does Meghan Costigan accept Medicare assignment?
- Yes. Medicare's clinician data says Meghan Costigan 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 Meghan Costigan see?
- In 2024, CMS data shows 57 Original Medicare patients and 93 services for Meghan Costigan. This counts Original Medicare only and measures volume, not quality.
- What is Meghan Costigan's NPI number?
- 1356895049. 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 Meghan Costigan, 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 | 57 |
|---|---|
| Services billed to Medicare | 93 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)88 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%
- Diabetes75%
- Arthritis63%
- Heart failure60%
- Ischemic heart disease56%
Practice locations
Addresses where Meghan Costigan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Healthy WayOceanside, NY 11572 (516) 632‑3935
Group practices
Medicare enrollment lists Meghan Costigan as a member of this group (CMS data updated October 2, 2026).
- North Shore Medical Group of the Mount Sinai School of Medicine331 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Oceanside
Clinicians with the same Medicare primary specialty in Oceanside, NY — not a recommendation.
Other clinicians in North Shore Medical Group of the Mount Sinai School of Medicine
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356895049 |
| 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