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Hematology/Oncology

Jennifer N. Leibovitch, MD

Works at hospitals in Boston, MA · Massachusetts

Summary

Dr. Jennifer N. Leibovitch, MD is a hematologist-oncologist at 133 Brookline Ave, Boston, MA 02215. Phone: (617) 421-1000. Accepts Medicare assignment. In 2024, Jennifer N. Leibovitch had 176 Original Medicare patients and 23,174 services. NPI 1740714864. 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: 133 Brookline Ave, Boston, MA 02215 · Directions
  • Phone: (617) 421‑1000
  • Medicare: Accepts Medicare assignment
  • Hospital: Beth Israel Deaconess Medical Center
  • Group practice: Atrius Health Inc
  • Medical school: graduated 2017 (9 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Jennifer N. Leibovitch, 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 Jennifer N. Leibovitch accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer N. Leibovitch 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 Jennifer N. Leibovitch see?
In 2024, CMS data shows 176 Original Medicare patients and 23,174 services for Jennifer N. Leibovitch. This counts Original Medicare only and measures volume, not quality.
What is Jennifer N. Leibovitch's NPI number?
1740714864. 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 Jennifer N. Leibovitch, 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 patients176
Services billed to Medicare23,174
Different services or procedures131
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Insertion of needle into vein for collection of blood sample (36415)284 services
  2. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)235 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)185 services
  4. Gammaglobulin (immune system protein) measurement (82784)126 services
  5. Ferritin (blood protein) level (82728)124 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 cholesterol72%
  • High blood pressure65%
  • Arthritis41%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)38%
  • Chronic kidney disease28%
  • Ischemic heart disease27%

Hospitals where Jennifer N. Leibovitch works

Medicare's Facility Affiliation Data lists Jennifer N. Leibovitch 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 Jennifer N. Leibovitch is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jennifer N. Leibovitch as a member of this group (CMS data updated October 2, 2026).

  • Atrius Health Inc1,222 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Massachusetts →

Other hematologist-oncologists in Boston

Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.

All hematologist-oncologists in Boston →

Other clinicians in Atrius Health 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)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1740714864
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