Quick answers
- Does Lillian McNamara accept Medicare assignment?
- Yes. Medicare's clinician data says Lillian McNamara 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 Lillian McNamara see?
- In 2024, CMS data shows 125 Original Medicare patients and 771 services for Lillian McNamara. This counts Original Medicare only and measures volume, not quality.
- What is Lillian McNamara's NPI number?
- 1205519485. 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 Lillian McNamara, 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 | 125 |
|---|---|
| Services billed to Medicare | 771 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)314 services
- Psychotherapy with evaluation and management visit, 30 minutes (90833)296 services
- Psychiatric diagnostic evaluation with medical services (90792)114 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)45 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%
- Anxiety74%
- Depression60%
- Arthritis46%
Practice locations
Addresses where Lillian McNamara is enrolled with Medicare (CMS data updated October 2, 2026).
- 279 Prescott AveStaten Island, NY 10306 (917) 496‑6547
- 348 13th St, Suite 203Brooklyn, NY 11215 (718) 788‑2461
- 3505 Hill Blvd, Suite KYorktown Heights, NY 10598 (914) 352‑6116
Group practices
Medicare enrollment lists Lillian McNamara as a member of these groups (CMS data updated October 2, 2026).
- Michael Hargrove MD PLLC7 clinicians in the group
- Park Slope Center for Mental Health Inc4 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Staten Island
Clinicians with the same Medicare primary specialty in Staten Island, NY — not a recommendation.
Other clinicians in Michael Hargrove MD PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2023 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1205519485 |
| 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