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

Cardiovascular Disease (Cardiology)

John J. Kelly, MD

Works at hospitals in Newark, DE · Elkton, MD · Delaware, Maryland

Summary

John J. Kelly, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 2 hospitals in Newark, DE and Elkton, MD. NPI 1659303634. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John J. Kelly, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Cardiovascular Disease (Cardiology)Primary specialty
YesAccepts Medicare assignment
42Years since medical school (graduated 1984)
Jefferson Medical College Of Thomas Jefferson UniversityMedical school
MaleGender (as listed)
Christiana Care Health Services IncGroup practice (+1 more)

Quick answers

Which hospitals does John J. Kelly work at?
Medicare's official clinician data lists John J. Kelly at 2 hospitals: Christiana Hospital and Union Hospital of Cecil County. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John J. Kelly see patients?
Medicare's clinician data lists 6 practice locations, including Newark, DE and Wilmington, DE. Call before your visit to confirm the address.
What is John J. Kelly's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
Does John J. Kelly accept Medicare assignment?
Yes. Medicare's clinician data says John J. Kelly accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for John J. Kelly?
(302) 738-6635, as listed in official Medicare / NPI Registry data.
What is John J. Kelly's NPI number?
1659303634. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John J. Kelly works

Medicare's Facility Affiliation Data lists John J. Kelly at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where John J. Kelly is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists John J. Kelly as a member of these groups (CMS data updated 2026-10-02).

  • Christiana Care Health Services Inc1,483 clinicians in the group
  • Cardiology Physicians, LLC49 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Delaware →

Other cardiologists in Newark

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

All cardiologists in Newark →

Clinician information

CredentialMD
Medical schoolJefferson Medical College Of Thomas Jefferson University
Graduation year1984
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659303634
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  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