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Nurse Practitioner

Jennifer Demosthene, NP

Works at hospitals in Newark, NJ · New Jersey

Summary

Jennifer Demosthene, NP is a nurse practitioner at 166 Lyons Ave, Newark, NJ 07112. Accepts Medicare assignment. In 2024, Jennifer Demosthene had 140 Original Medicare patients and 541 services. NPI 1013586171. 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: Nurse practitioner
  • Address: 166 Lyons Ave, Newark, NJ 07112 · Directions (1 more location)
  • Medicare: Accepts Medicare assignment
  • Hospital: Newark Beth Israel Medical Center
  • Group practice: Barnabas Health Medical Group PC
  • School: graduated 2018
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Jennifer Demosthene, 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 Demosthene accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer Demosthene 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 Demosthene see?
In 2024, CMS data shows 140 Original Medicare patients and 541 services for Jennifer Demosthene. This counts Original Medicare only and measures volume, not quality.
What is Jennifer Demosthene's NPI number?
1013586171. 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 Demosthene, 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 patients140
Services billed to Medicare541
Different services or procedures27
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)133 services
  2. Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)104 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)79 services
  4. Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes (99347)49 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)31 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%
  • Diabetes49%
  • Ischemic heart disease38%
  • Depression36%

Hospitals where Jennifer Demosthene works

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

  • 166 Lyons AveNewark, NJ 07112
  • 94 Old Short Hills RdLivingston, NJ 07039

Group practices

Medicare enrollment lists Jennifer Demosthene 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 clinicians: Nurse Practitioner, New Jersey →

Other nurse practitioners in Newark

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

All nurse practitioners in Newark →

Other clinicians in Barnabas Health Medical Group PC

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

Clinician information

CredentialNP
Graduation year2018
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1013586171
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