Gus Katsigiorgis, DO

Medicare activity in 2024

Official CMS public-use data for Gus Katsigiorgis, 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. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)379 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)167 services
3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)100 services
4. X-ray of knee, 3 views (73562)77 services
5. Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)74 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%
• Diabetes44%
• Ischemic heart disease31%
• Anxiety26%

Hospitals where Gus Katsigiorgis works

Medicare's Facility Affiliation Data lists Gus Katsigiorgis 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.

• Mercy Medical CenterRockville Centre, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330259

Practice locations

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

• 125 Franklin AveValley Stream, NY 11580 (516) 887‑1787
• 125 Franklin Ave, 203 Island Musculoskeletal Care MD PCHewlett, NY 11557
• 2475 Eastchester RdBronx, NY 10469 (718) 882‑5314
• 352 Fulton AveHempstead, NY 11550 (516) 956‑7846
• 485 N Ocean AvePatchogue, NY 11772 (631) 475‑0353

Group practices

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

• Island Musculoskeletal Care MD PC14 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in New York →

Other orthopedic surgeons in Valley Stream

Clinicians with the same Medicare primary specialty in Valley Stream, NY — not a recommendation.

• Michael J. Fracchia, MD
• John J. Yu, MD
• Stanislav Avshalumov, DO
• June Halsey, MD
• Michael F. Trepeta, DO
• Rasel Rana, DO
• Brian J. McGinley, MD
• John D. Hubbell, MD

All orthopedic surgeons in Valley Stream →

Other clinicians in Island Musculoskeletal Care MD PC

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

• Sharon Ozaraga, PT
• Toni Rose Mendiola
• Michael S. Chiarenza, PA
• Keny N. Desai, PT
• Dennis A. Ponteres, PT
• Mary Grace A. Lusan Urena, PT

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