Nimalya Ganeshalingam, MD

Medicare activity in 2024

Official CMS public-use data for Nimalya Ganeshalingam, 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.

Most frequent services

1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)677 services
2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)195 services
3. Measurement of brain wave activity (eeg), awake and drowsy (95816)59 services
4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)39 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)31 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%
• Stroke or mini-stroke71%
• Arthritis66%
• Ischemic heart disease65%
• Diabetes56%

Hospitals where Nimalya Ganeshalingam works

Medicare's Facility Affiliation Data lists Nimalya Ganeshalingam 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.

• Chsli St Joseph HospitalBethpage, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330332
• Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330286

Practice locations

Addresses where Nimalya Ganeshalingam is enrolled with Medicare (CMS data updated October 2, 2026).

• 1000 Montauk HwyWest Islip, NY 11795 (631) 376‑3000

Group practices

Medicare enrollment lists Nimalya Ganeshalingam as a member of this group (CMS data updated October 2, 2026).

• CHS Physician Partners PC743 clinicians in the group

Specialties

• Neurologyprimary

Find other Neurology doctors in New York →

Other neurologists in West Islip

Clinicians with the same Medicare primary specialty in West Islip, NY — not a recommendation.

• Annie R. Burnett, MD
• David L. Kreitzman, MD
• Bradley M. Klein, MD
• Ajay V. Berdia, MD
• Ricky Chen, MD
• Mariecken V. Fowler, MD
• Jiaying Zhang, MD
• Robert Myers, MD

All neurologists in West Islip →

Other clinicians in CHS Physician Partners PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Luisa P. Santos
• Evan G. Kessler, MD
• Dorothy Mock, PA
• Rajasree S. Roy, MD
• Garri Pasklinsky, MD
• John F. Folan, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians