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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. SEAN CORNELIUS GALLIGAN MD
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Internal Medicine - Interventional Cardiology in Brooklyn, NY

Active since April 28, 2011PECOS EnrolledAccepts Medicare Assignment
66.8/100
CMS Quality Rating
502 86TH ST, BROOKLYN, NY 11209(929) 470-8403 Get Directions

NPPES record last updated: September 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 23, 2026, Oct 4, 2018 (2 updates tracked since 2018).

Find Similar Internal Medicine Providers by Distance


Discover healthcare providers in Brooklyn, NY with a similar scope of practice to DR. SEAN CORNELIUS GALLIGAN MD. These local professionals also specialize in internal medicine. Our records identify 50 registered providers nearby; this includes a mix of 41 individual practitioners and 9 healthcare organizations. For your convenience, we have ranked these results by distance to help you find the closest available care. A handy interactive map is also available; select Show map to see where each nearby provider is located, or use Export CSV to download the complete list.

50 providers within 50 miles
NYO LWIN M.D
5.24 mi
186 JORALEMON ST, 11TH FLOOR
BROOKLYN, NY 11201
  • Related Field: Internal Medicine
  • Accepts Medicare
Kings County (646) 962-4600
ARPI PATEL
5.39 mi
121 DEKALB AVE, DEPARTMENT OF MEDICINE
BROOKLYN, NY 11201
  • Related Field: Internal Medicine
  • Accepts Medicare
Kings County (718) 250-8000