Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Registered Dietitian or Nutrition Professional

Leslie A. Killeen, MNT

Sees patients in Berkeley Heights, NJ · New Jersey

Summary

Leslie A. Killeen, MNT is a dietitian at 1 Diamond Hill Rd, Berkeley Heights, NJ 07922. Phone: (908) 273-4300. Accepts Medicare assignment. In 2024, Leslie A. Killeen had 36 Original Medicare patients and 117 services. NPI 1043465776. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Dietitian (Medicare lists Registered Dietitian or Nutrition Professional)
  • Address: 1 Diamond Hill Rd, Berkeley Heights, NJ 07922 · Directions (1 more location)
  • Phone: (908) 273‑4300
  • Medicare: Accepts Medicare assignment
  • Group practice: Summit Medical Group PA
  • School: graduated 1986
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Leslie A. Killeen, 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 Leslie A. Killeen accept Medicare assignment?
Yes. Medicare's clinician data says Leslie A. Killeen 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 Leslie A. Killeen see?
In 2024, CMS data shows 36 Original Medicare patients and 117 services for Leslie A. Killeen. This counts Original Medicare only and measures volume, not quality.
What is Leslie A. Killeen's NPI number?
1043465776. 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 Leslie A. Killeen, 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 patients36
Services billed to Medicare117
Different services or procedures2
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Therapy procedure for nutrition management, each 15 minutes (97802)95 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%
  • Diabetes75%
  • Arthritis50%
  • Chronic kidney disease39%
  • Ischemic heart disease31%

Practice locations

Addresses where Leslie A. Killeen is enrolled with Medicare (CMS data updated October 2, 2026).

  • 1 Diamond Hill RdBerkeley Heights, NJ 07922 (908) 273‑4300
  • 1 Diamond Hill Rd, Summit Medical GroupBerkeley Heights, NJ 07922

Group practices

Medicare enrollment lists Leslie A. Killeen as a member of this group (CMS data updated October 2, 2026).

  • Summit Medical Group PA1,212 clinicians in the group

Specialties

Find other clinicians: Registered Dietitian or Nutrition Professional, New Jersey →

Other dietitians in Berkeley Heights

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

All dietitians in Berkeley Heights →

Other clinicians in Summit Medical Group PA

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

Clinician information

CredentialMNT
Graduation year1986
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1043465776
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians