Quick answers
- Does Rosanne A. Pachilakis accept Medicare assignment?
- Yes. Medicare's clinician data says Rosanne A. Pachilakis 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 Rosanne A. Pachilakis see?
- In 2024, CMS data shows 154 Original Medicare patients and 309 services for Rosanne A. Pachilakis. This counts Original Medicare only and measures volume, not quality.
- What is Rosanne A. Pachilakis's NPI number?
- 1669576161. 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 Rosanne A. Pachilakis, 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 | 154 |
|---|---|
| Services billed to Medicare | 309 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Psychotherapy, 30 minutes (90832)120 services
- Psychiatric diagnostic evaluation (90791)106 services
- Exam of neurobehavioral status, first hour (96116)29 services
- Exam of neurobehavioral status, each additional hour (96121)28 services
- Psychotherapy, 45 minutes (90834)15 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 disease57%
- Anxiety57%
- Diabetes49%
Practice locations
Addresses where Rosanne A. Pachilakis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1554 Northern Blvd, Fl 3Manhasset, NY 11030 (516) 472‑5800
Group practices
Medicare enrollment lists Rosanne A. Pachilakis as a member of this group (CMS data updated October 2, 2026).
- North Shore-Lij Medical PC6,440 clinicians in the group
Specialties
- Clinical Psychologistprimary
Other clinical psychologists in Manhasset
Clinicians with the same Medicare primary specialty in Manhasset, 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 | PSY |
|---|---|
| Graduation year | 2003 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669576161 |
| 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