Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Jacqueline Jennifer O'Neill, MD

Individual provider Internal Medicine Physician · NPI 1588153886

Dr. Jacqueline Jennifer O'Neill, MD is an Internal Medicine in Orange, California. Qualified in 2018, 8 years ago. Practices with The Regents of the University of California-Irvine, a 104-clinician group and accepts Medicare assignment. Licensed in Arizona, California and New Mexico.

Years since qualifying
8
Licensed in
AZ, CA, NM
In the registry since
2018
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

101 The City Dr S
Orange, CA 92868-3201
Phone: (714) 456-7890
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A202837 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD2021-0682 (NM)
General Practice Physician Taxonomy 208D00000X · Licence 61778 (AZ)
Hospitalist Physician Taxonomy 208M00000X · Licence MD2021-0682 (NM)

Record details

NPI number1588153886
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 2, 2018
Last updated in NPPESSeptember 16, 2025
Certification dateSeptember 16, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice The Regents Of The University Of California-Irvine — 104 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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