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Critical Care (Intensivists)

Ayelet B. Hilewitz

Works at hospitals in New Hyde Park, NY · Manhasset, NY · New York

Summary

Ayelet B. Hilewitz is a critical care doctor at 27005 76th Ave Gf, New Hyde Park, NY 11040. Phone: (718) 470-7501. Accepts Medicare assignment. In 2024, Ayelet B. Hilewitz had 122 Original Medicare patients and 332 services. NPI 1811263098. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Ayelet B. Hilewitz, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ayelet B. Hilewitz accept Medicare assignment?
Yes. Medicare's clinician data says Ayelet B. Hilewitz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Ayelet B. Hilewitz see?
In 2024, CMS data shows 122 Original Medicare patients and 332 services for Ayelet B. Hilewitz. This counts Original Medicare only and measures volume, not quality.
What is Ayelet B. Hilewitz's NPI number?
1811263098. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Ayelet B. Hilewitz, 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.

Original Medicare patients122
Services billed to Medicare332
Different services or procedures13
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Critical care, first 30-74 minutes (99291)183 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)61 services
  3. Ultrasound scan of chest (76604)26 services
  4. Ultrasound of heart, follow-up (93308)24 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)17 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%
  • Diabetes68%
  • Ischemic heart disease68%
  • Heart failure64%
  • Chronic kidney disease63%

Hospitals where Ayelet B. Hilewitz works

Medicare's Facility Affiliation Data lists Ayelet B. Hilewitz 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.

Practice locations

Addresses where Ayelet B. Hilewitz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ayelet B. Hilewitz as a member of this group (CMS data updated October 2, 2026).

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

Specialties

Find other Critical Care (Intensivists) doctors in New York →

Other critical care doctors in New Hyde Park

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

All critical care doctors 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.

Clinician information

Graduation year2011 (15 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811263098
CorrectionsReport an error or suggest an update →

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