Polikseni Eksarko, MD

Medicare activity in 2024

Official CMS public-use data for Polikseni Eksarko, 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 35 minutes (99232)280 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)161 services
3. Hospital discharge day management, 30 minutes or less (99238)101 services
4. Emergency department visit with low level of medical decision making (99283)88 services
5. Critical care, first 30-74 minutes (99291)77 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%
• Arthritis64%
• Ischemic heart disease63%
• Diabetes48%
• Atrial fibrillation48%

Hospitals where Polikseni Eksarko works

Medicare's Facility Affiliation Data lists Polikseni Eksarko 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.

• Suny/Stony Brook University HospitalStony Brook, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330393

Practice locations

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

• 255 W Montauk Hwy, Life Care CtrHampton Bays, NY 11946 (631) 723‑5000

Group practices

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

• Stony Brook Surgical Associates University Faculty Practice Corporati109 clinicians in the group

Specialties

• General Surgeryprimary
• Critical Care (Intensivists)also

Find other General Surgery doctors in New York →

Other general surgeons in Hampton Bays

Clinicians with the same Medicare primary specialty in Hampton Bays, NY — not a recommendation.

• Danielle L. Tamburrini, DO
• Marc E. Finkelstein, MD
• James A. Vosswinkel, MD
• Jonathan V. Martin, MD
• Saran Kunaprayoon, MD
• Konstantinos Spaniolas, MD
• Adel Alhaj Saleh, MD
• Sivaveera Kandasamy, MD

All general surgeons in Hampton Bays →

Other clinicians in Stony Brook Surgical Associates University Faculty Practice Corporati

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

• Elizabeth A. Ryan, NP
• Huseyin Isildak, MD
• Richard Scriven, MD
• Luke W. Swaszek, MD
• Brittni A. Munn, PA
• Joseph S. Valenti, 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