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

Jennifer Youngeun O'Neill-Cha, MD

Individual provider Hospitalist Physician · NPI 1033479936

Jennifer Youngeun O'Neill-Cha, MD is a Hospitalist in Concord, California. Graduated from Loma Linda University School of Medicine in 2012, 14 years ago. Practices with John Muir Physician Network, a 486-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
14
Trained at
Loma Linda University School of Medicine
Licensed in
CA
In the registry since
2012
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

2700 Grant St Ste 200
Concord, CA 94520-2270
Phone: (925) 947-3312
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 350 Hawthorne Ave Rm 2346, Oakland, CA 94609-3108 — (510) 869-6883

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A126813 (CA)

Record details

NPI number1033479936
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 24, 2012
Last updated in NPPESApril 24, 2024
Certification dateApril 24, 2024

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice John Muir Physician Network — 486 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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