Antonio Costantino, MD

Medicare activity in 2024

Official CMS public-use data for Antonio Costantino, 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)148 services
2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)96 services
3. Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)72 services
4. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)48 services
5. Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)42 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%
• Arthritis58%
• Ischemic heart disease54%
• Diabetes49%
• Chronic kidney disease40%

Hospitals where Antonio Costantino works

Medicare's Facility Affiliation Data lists Antonio Costantino 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.

• 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

Practice locations

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

• 26901 76th AveNew Hyde Park, NY 11040 (718) 470‑3570
• 600 Northern BlvdGreat Neck, NY 11021 (516) 470‑2020

Group practices

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

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

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in New York →

Other gastroenterologists in New Hyde Park

Clinicians with the same Medicare primary specialty in New Hyde Park, NY — not a recommendation.

• Craig R. Smolow, MD
• Robert J. Brunner, MD
• Ian M. Storch, MD
• Sandeep Nadella, MD
• Christopher Dimaio, MD
• James S. Park, MD
• Samrath Singh, MD
• Peter H. Stein, MD

All gastroenterologists in New Hyde Park →

Other clinicians in North Shore-Lij Medical PC

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

• Heather M. Vicquery, CSW
• Omkaar O. Jaikaran, DO
• Rami Bzeih, DO
• Karen Mrejen, MD
• Jakob Saidman, MD
• Christopher E. Grippo

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