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Hematology/Oncology

Kathleen C. Toomey, MD

Works at hospitals in Flemington, NJ · Summit, NJ · New Brunswick, NJ … · New Jersey

Summary

Dr. Kathleen C. Toomey, MD is a hematologist-oncologist at 1 Hamilton Health Pl, Hamilton, NJ 08690. Phone: (609) 689-7031. Accepts Medicare assignment. In 2024, Kathleen C. Toomey had 548 Original Medicare patients and 1,464 services. NPI 1720087752. 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 Kathleen C. Toomey, 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 Kathleen C. Toomey accept Medicare assignment?
Yes. Medicare's clinician data says Kathleen C. Toomey 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 Kathleen C. Toomey see?
In 2024, CMS data shows 548 Original Medicare patients and 1,464 services for Kathleen C. Toomey. This counts Original Medicare only and measures volume, not quality.
What is Kathleen C. Toomey's NPI number?
1720087752. 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 Kathleen C. Toomey, 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 patients548
Services billed to Medicare1,464
Different services or procedures14
Participating Medicare providerYes
Average age of these patients76

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)806 services
  2. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)192 services
  3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)110 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)110 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)104 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)69%
  • Arthritis52%
  • Diabetes35%
  • Ischemic heart disease34%

Hospitals where Kathleen C. Toomey works

Medicare's Facility Affiliation Data lists Kathleen C. Toomey 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 Kathleen C. Toomey is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

Group practices

Medicare enrollment lists Kathleen C. Toomey as a member of this group (CMS data updated October 2, 2026).

  • Barnabas Health Medical Group PC1,070 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in New Jersey →

Other hematologist-oncologists in Hamilton

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

All hematologist-oncologists in Hamilton →

Other clinicians in Barnabas Health Medical Group PC

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

Clinician information

CredentialMD
Graduation year1978 (48 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1720087752
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