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

Dr. Sonya Janet Koo, MD

Individual provider Nuclear Radiology Physician · NPI 1386983138

Dr. Sonya Janet Koo, MD is a Nuclear Medicine in Orange, California. Graduated from Un of California, Irvine, College of Medicine in 2008, 18 years ago. Practices with Uc Regents, a 103-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
18
Trained at
Un of California, Irvine, College of Medicine
Licensed in
CA
In the registry since
2013
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) 456-8888
Show map & directions

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

Specialties & licences

Nuclear Radiology Physician (primary) Taxonomy 2085N0904X · Licence A110482 (CA)

Record details

NPI number1386983138
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 13, 2013
Last updated in NPPESOctober 27, 2025
Certification dateOctober 27, 2025

Medicare enrollment

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

Medicare specialtyNUCLEAR MEDICINE
Medical schoolUN OF CALIFORNIA, IRVINE, COLLEGE OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Uc Regents — 103 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Orange