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Medical Oncology

Louise G. Ligresti, MD

Works at hospitals in Livingston, NJ · New Brunswick, NJ · New Jersey

Summary

Dr. Louise G. Ligresti, MD is an oncologist at 195 Little Albany St, New Brunswick, NJ 08901. Phone: (732) 235-2465. Accepts Medicare assignment. In 2024, Louise G. Ligresti had 382 Original Medicare patients and 868 services. NPI 1215960232. 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 Louise G. Ligresti, 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 Louise G. Ligresti accept Medicare assignment?
Yes. Medicare's clinician data says Louise G. Ligresti 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 Louise G. Ligresti see?
In 2024, CMS data shows 382 Original Medicare patients and 868 services for Louise G. Ligresti. This counts Original Medicare only and measures volume, not quality.
What is Louise G. Ligresti's NPI number?
1215960232. 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 Louise G. Ligresti, 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 patients382
Services billed to Medicare868
Different services or procedures11
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)455 services
  2. 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)198 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)153 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)23 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%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • Arthritis44%
  • Osteoporosis39%
  • Diabetes31%

Hospitals where Louise G. Ligresti works

Medicare's Facility Affiliation Data lists Louise G. Ligresti 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 Louise G. Ligresti is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Louise G. Ligresti as a member of these groups (CMS data updated October 2, 2026).

  • Barnabas Health Medical Group PC1,070 clinicians in the group
  • Rutgers Health-Rwj Scleroderma Program391 clinicians in the group

Specialties

Find other Medical Oncology doctors in New Jersey →

Other oncologists in New Brunswick

Clinicians with the same Medicare primary specialty in New Brunswick, NJ — not a recommendation.

All oncologists in New Brunswick →

Other clinicians in Barnabas Health Medical Group PC

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

Clinician information

CredentialMD
Medical schoolState University Of Ny Upstate Medical University
Graduation year1991 (35 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1215960232
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