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Rheumatology

Myron I. Kleiner, MD

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

Summary

Dr. Myron I. Kleiner, MD is a rheumatologist at 1111 Marcus Ave, New Hyde Park, NY 11042. Phone: (516) 562-2229. Accepts Medicare assignment. In 2024, Myron I. Kleiner had 375 Original Medicare patients and 52,566 services. NPI 1760468854. 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 Myron I. Kleiner, 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 Myron I. Kleiner accept Medicare assignment?
Yes. Medicare's clinician data says Myron I. Kleiner 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 Myron I. Kleiner see?
In 2024, CMS data shows 375 Original Medicare patients and 52,566 services for Myron I. Kleiner. This counts Original Medicare only and measures volume, not quality.
What is Myron I. Kleiner's NPI number?
1760468854. 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 Myron I. Kleiner, 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 patients375
Services billed to Medicare52,566
Different services or procedures33
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, denosumab, 1 mg (J0897)6,720 services
  2. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)1,607 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)862 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)791 services
  5. Insertion of needle into vein for collection of blood sample (36415)688 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%
  • Arthritis75%
  • Osteoporosis52%
  • Ischemic heart disease39%
  • Diabetes35%

Hospitals where Myron I. Kleiner works

Medicare's Facility Affiliation Data lists Myron I. Kleiner 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 Myron I. Kleiner is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Myron I. Kleiner 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 Rheumatology doctors in New York →

Other rheumatologists in New Hyde Park

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

All rheumatologists 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

CredentialMD
Medical schoolIcahn School Of Medicine At Mount Sinai
Graduation year1977 (49 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1760468854
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