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Physical Medicine and Rehabilitation

Avniel Shetreat Klein, MD

Works at hospitals in New York, NY · New York

Summary

Dr. Avniel Shetreat Klein, MD is a rehabilitation doctor at 5 E 98th St, Fl 6, New York, NY 10029. Phone: (212) 241-9468. Accepts Medicare assignment. In 2024, Avniel Shetreat Klein had 97 Original Medicare patients and 413 services. NPI 1366580631. 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.

  • Specialty: Rehabilitation doctor (Medicare lists Physical Medicine and Rehabilitation)
  • Address: 5 E 98th St, Fl 6, New York, NY 10029 · Directions
  • Phone: (212) 241‑9468
  • Medicare: Accepts Medicare assignment
  • Hospitals: Mount Sinai Hospital, Mount Sinai West
  • Group practice: Icahn School of Medicine at Mount Sinai
  • Medical school: Icahn School Of Medicine At Mount Sinai · graduated 2003 (23 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Avniel Shetreat Klein, 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 Avniel Shetreat Klein accept Medicare assignment?
Yes. Medicare's clinician data says Avniel Shetreat Klein 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 Avniel Shetreat Klein see?
In 2024, CMS data shows 97 Original Medicare patients and 413 services for Avniel Shetreat Klein. This counts Original Medicare only and measures volume, not quality.
What is Avniel Shetreat Klein's NPI number?
1366580631. 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 Avniel Shetreat Klein, 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 patients97
Services billed to Medicare413
Different services or procedures18
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)217 services
  2. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)54 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)32 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)25 services
  5. Hospital discharge day management, 30 minutes or less (99238)18 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 cholesterol74%
  • Arthritis53%
  • Stroke or mini-stroke47%
  • Ischemic heart disease42%
  • Diabetes41%

Hospitals where Avniel Shetreat Klein works

Medicare's Facility Affiliation Data lists Avniel Shetreat Klein 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.

  • Mount Sinai HospitalNew York, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330024
  • Mount Sinai WestNew York, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330046

Practice locations

Addresses where Avniel Shetreat Klein is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Avniel Shetreat Klein as a member of this group (CMS data updated October 2, 2026).

  • Icahn School of Medicine at Mount Sinai2,843 clinicians in the group

Specialties

Find other Physical Medicine and Rehabilitation doctors in New York →

Other rehabilitation doctors in New York

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

All rehabilitation doctors in New York →

Other clinicians in Icahn School of Medicine at Mount Sinai

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

Clinician information

CredentialMD
Medical schoolIcahn School Of Medicine At Mount Sinai
Graduation year2003 (23 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1366580631
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