Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Dr. Ryan O'Connell, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1609288794

Dr. Ryan O'Connell, MD practises Pathology in Orange, California. Graduated from University of Southern California Keck School of Medicine in 2014, 12 years ago. Practices with Regents of the University of California, a 39-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
12
Trained at
University of Southern California Keck School of Medicine
Licensed in
CA
In the registry since
2014
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

101 The City Dr S
Orange, CA 92868-3201
Phone: (714) 880-7812
Show map & directions

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

Additional practice locations (2)

  • 560 W Main St Ste C149, Alhambra, CA 91801-3374 — (714) 456-2986
  • 560 W Main St Ste C149, Alhambra, CA 91801-3374 — (714) 456-2986

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 207ZP0102X (CA)

Record details

NPI number1609288794
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 23, 2014
Last updated in NPPESApril 26, 2025
Certification dateApril 26, 2025

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Regents Of The University Of California — 39 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients158
Services billed 966 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 39 clinicians in the practice; 12 are shown here.

Other providers in Orange