Gwy Suk Seo, MD

Medicare activity in 2024

Official CMS public-use data for Gwy Suk Seo, 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. Ct scan head or brain without contrast (70450)261 services
2. Ct scan of abdomen and pelvis with contrast (74177)207 services
3. Ct scan of abdomen and pelvis without contrast (74176)135 services
4. Ct scan of upper spine without contrast (72125)123 services
5. Ct scan of chest without contrast (71250)115 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%
• Arthritis69%
• Ischemic heart disease54%
• Diabetes44%
• Anxiety44%

Hospitals where Gwy Suk Seo works

Medicare's Facility Affiliation Data lists Gwy Suk Seo 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.

• North Shore University HospitalManhasset, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330106
• Ns/Lij HS Huntington HospitalHuntington, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330045
• Ns/Lij HS Southside HospitalBay Shore, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330043
• Peconic Bay Medical CenterRiverhead, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330107
• Phelps HospitalSleepy Hollow, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330261

Practice locations

Addresses where Gwy Suk Seo is enrolled with Medicare (CMS data updated October 2, 2026).

• 1 Heroes WayRiverhead, NY 11901 (631) 548‑6000
• 10201 66th RdForest Hills, NY 11375 (718) 830‑4000
• 1220 Hicksville RdSeaford, NY 11783 (516) 266‑3456
• 465 Columbus Ave, Suite 125Valhalla, NY 10595 (914) 232‑3255
• 9525 Queens BlvdRego Park, NY 11374 (718) 360‑5522

Group practices

Medicare enrollment lists Gwy Suk Seo as a member of these groups (CMS data updated October 2, 2026).

• North Shore-Lij Medical PC6,440 clinicians in the group
• Southside Faculty Medical Affiliates University Faculty Practice Corp231 clinicians in the group
• Westchester Health Medical PC88 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in New York →

Other radiologists in Riverhead

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

• Shahid Hussain, MD
• Chimere N. Mba-Jonas, MD
• Hwayoung Lee, MD
• Alan A. Johnson, MD
• Samuel W. Kim, MD
• Johanna Monsalve Villamizar, MD
• Dominic J. Altieri, MD
• Anita Ankola, MD

All radiologists in Riverhead →

Other clinicians in North Shore-Lij Medical PC

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

• Abbas Husain, MD
• Vishesh Chhibber, MD
• Sandra B B. Mampouya, PA
• Amanda Smith, MD
• Krista M. Siedlick, NP
• Minesh R. Patel, 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