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Internal Medicine

Jennifer L. Twardzik, DO

Works at hospitals in Somers Point, NJ · New Jersey

Summary

Dr. Jennifer L. Twardzik, DO is an internal medicine doctor at 4 W Roosevelt Blvd, Suite 11, Marmora, NJ 08223. Phone: (609) 814-9550. Accepts Medicare assignment. In 2024, Jennifer L. Twardzik had 407 Original Medicare patients and 1,307 services. NPI 1619065075. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 4 W Roosevelt Blvd, Suite 11, Marmora, NJ 08223 · Directions (1 more location)
  • Phone: (609) 814‑9550
  • Medicare: Accepts Medicare assignment
  • Hospital: Shore Medical Center
  • Group practice: Atlanticare Physician Group PA (+1 more)
  • Medical school: Philadelphia College Of Osteopathic Medicine · graduated 1997 (29 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 L. Twardzik, 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 L. Twardzik accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer L. Twardzik 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 L. Twardzik see?
In 2024, CMS data shows 407 Original Medicare patients and 1,307 services for Jennifer L. Twardzik. This counts Original Medicare only and measures volume, not quality.
What is Jennifer L. Twardzik's NPI number?
1619065075. 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 L. Twardzik, 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 patients407
Services billed to Medicare1,307
Different services or procedures31
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)515 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)316 services
  3. Administration of influenza virus vaccine (G0008)106 services
  4. Influenza vaccine split virus, preservative free (90662)99 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)90 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%
  • Arthritis45%
  • Ischemic heart disease32%
  • Diabetes25%
  • Anxiety20%

Hospitals where Jennifer L. Twardzik works

Medicare's Facility Affiliation Data lists Jennifer L. Twardzik 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.

  • Shore Medical CenterSomers Point, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310047

Practice locations

Addresses where Jennifer L. Twardzik is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jennifer L. Twardzik as a member of these groups (CMS data updated October 2, 2026).

  • Atlanticare Physician Group PA511 clinicians in the group
  • Shore Memorial Physicians Group PC25 clinicians in the group

Specialties

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in Marmora

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

All internal medicine doctors in Marmora →

Other clinicians in Atlanticare Physician Group PA

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

Clinician information

CredentialDO
Medical schoolPhiladelphia College Of Osteopathic Medicine
Graduation year1997 (29 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1619065075
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