Nisali A. Gunawardane, MD

Medicare activity in 2024

Official CMS public-use data for Nisali A. Gunawardane, 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. Measurement of brain wave activity with video (veeg), 12-26 hours with review and report by health care professional (95720)182 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)152 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)137 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)124 services
5. Measurement of brain wave activity (eeg), continuous (95700)59 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%
• Arthritis49%
• Stroke or mini-stroke44%
• Anxiety39%
• Ischemic heart disease37%

Hospitals where Nisali A. Gunawardane works

Medicare's Facility Affiliation Data lists Nisali A. Gunawardane 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.

• Lenox Hill HospitalNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330119
• Northern Westchester HospitalMount Kisco, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330162
• Phelps HospitalSleepy Hollow, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330261

Practice locations

Addresses where Nisali A. Gunawardane is enrolled with Medicare (CMS data updated October 2, 2026).

• 755 N Broadway, Suite 430Sleepy Hollow, NY 10591 (914) 366‑5300

Group practices

Medicare enrollment lists Nisali A. Gunawardane as a member of this group (CMS data updated October 2, 2026).

• North Shore-Lij Medical PC6,440 clinicians in the group

Specialties

• Neurologyprimary

Find other Neurology doctors in New York →

Other neurologists in Sleepy Hollow

Clinicians with the same Medicare primary specialty in Sleepy Hollow, NY — not a recommendation.

• Barry Menna, MD
• Kasun I. Navarathna, MD
• Frasat Chaudhry, MD
• Anna Hohler, MD
• Daniel Torres, MD
• Sanda Carniciu, MD

All neurologists in Sleepy Hollow →

Other clinicians in North Shore-Lij Medical PC

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

• Justin Yozawitz, MD
• Selina S. Zaman, MD
• Thomas M. Kilkenny, DO
• Brianna L. Rafferty, PA
• Leonora W. Mui, MD
• Sam D. Russo, PA

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