Ariel M. Schaap, MD

Medicare activity in 2024

Official CMS public-use data for Ariel M. Schaap, 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.

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 pressure71%
• High cholesterol65%

Hospitals where Ariel M. Schaap works

Medicare's Facility Affiliation Data lists Ariel M. Schaap 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.

• Bellevue Hospital CenterNew York, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330204
• NYU Langone HospitalsNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330214

Practice locations

Addresses where Ariel M. Schaap is enrolled with Medicare (CMS data updated October 2, 2026).

• 111 BroadwayNew York, NY 10006 (212) 263‑9700
• 240 E 38th StNew York, NY 10016 (212) 263‑7300
• 530 1st AveNew York, NY 10016 (212) 263‑7300
• 550 1st AveNew York, NY 10016 (212) 263‑7300
• 560 1st AveNew York, NY 10016 (212) 263‑7300

Group practices

Medicare enrollment lists Ariel M. Schaap as a member of this group (CMS data updated October 2, 2026).

• New York University6,134 clinicians in the group

Specialties

• Hematologyprimary
• Medical Oncologyalso

Find other Hematology doctors in New York →

Other hematologists in New York

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

• Leonard Naymagon, MD
• Emily K. Slotkin, MD
• Max L. Dougherty, MD
• Jingmei Hsu, MD
• Samuel J. Yamshon, MD
• Pawel Muranski
• Alisa Sokoloff, MD
• Amer Assal, MD

All hematologists in New York →

Other clinicians in New York University

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

• Dustin R. Cummings, MD
• Aarash Roshandel
• Kourosh Noorbaksh, MD
• Max M. April, MD
• Jaimie Fabricant, DO
• Salman Punekar, MD

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