Skip to main content
John O'Neill Jr., DO, Internal Medicine, Newark, DE

JohnHO'NeillJr.DO

Internal Medicine Newark, DE

Hospital Medicine/Hospitalist

Physician

Dr. O'Neill is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

  • Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
  • Connect with colleagues in the same hospital or clinic.
  • Read the latest clinical news, personalized to your specialty.

See Dr. O'Neill's full profile

Already have an account?

  • Office

    4755 Ogletown Stanton Rd Ste 5a43
    Newark, DE 19718
    Phone+1 302-623-0188
    Fax+1 302-623-3023

Education & Training

  • Sidney Kimmel Medical College at Thomas Jefferson University/Christiana Care Health Services
    Sidney Kimmel Medical College at Thomas Jefferson University/Christiana Care Health ServicesResidency, Internal Medicine, 1988 - 1990
  • Des Moines University College of Osteopathic Medicine
    Des Moines University College of Osteopathic MedicineClass of 1986

Certifications & Licensure

  • DE State Medical License
    DE State License 1989 - 2025
  • MD State Medical License
    MD State License 1989 - 1995
  • NJ State Medical License
    NJ State License 1988 - 1995
  • PA State Medical License
    PA State License 1987 - 1988
  • American Board of Internal Medicine Internal Medicine

Awards, Honors, & Recognition

  • Meaningful Use Stage 1 Certification Centers for Medicare & Medicaid Services, 2011