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Hematology/Oncology

Alexander M. Barbaro, MD

Works at hospitals in New York, NY · New York

Summary

Dr. Alexander M. Barbaro, MD is a hematologist-oncologist at 100 E 77th St, New York, NY 10075. Phone: (212) 434-4460. Accepts Medicare assignment. In 2024, Alexander M. Barbaro had 102 Original Medicare patients and 517 services. NPI 1396278040. 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: Hematologist-oncologist (Medicare lists Hematology/Oncology)
  • Address: 100 E 77th St, New York, NY 10075 · Directions (1 more location)
  • Phone: (212) 434‑4460
  • Medicare: Accepts Medicare assignment
  • Hospital: Lenox Hill Hospital
  • Group practice: North Shore Health System Medical Faculty Group Practice Inc
  • Medical school: graduated 2017 (9 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 Alexander M. Barbaro, 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 Alexander M. Barbaro accept Medicare assignment?
Yes. Medicare's clinician data says Alexander M. Barbaro 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 Alexander M. Barbaro see?
In 2024, CMS data shows 102 Original Medicare patients and 517 services for Alexander M. Barbaro. This counts Original Medicare only and measures volume, not quality.
What is Alexander M. Barbaro's NPI number?
1396278040. 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 Alexander M. Barbaro, 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 patients102
Services billed to Medicare517
Different services or procedures18
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. 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)155 services
  2. Insertion of needle into vein for collection of blood sample (36415)106 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)62 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)47 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)32 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%
  • Arthritis54%
  • Ischemic heart disease50%
  • Anxiety39%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)35%

Hospitals where Alexander M. Barbaro works

Medicare's Facility Affiliation Data lists Alexander M. Barbaro 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.

  • Lenox Hill HospitalNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330119

Practice locations

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

Group practices

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

  • North Shore Health System Medical Faculty Group Practice Inc164 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in New York →

Other hematologist-oncologists in New York

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

All hematologist-oncologists in New York →

Other clinicians in North Shore Health System Medical Faculty Group Practice Inc

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

Clinician information

CredentialMD
Graduation year2017 (9 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1396278040
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