Sonya Janet Koo, MD
Nuclear Radiology Physician · Orange, CA
Sonya Janet Koo, MD is a nuclear radiology physician with a practice address in Orange, California, and NPI 1386983138, issued on Feb 13, 2013. Check the license (California A110482, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sonya Janet Koo
- Credential
- MD
- Primary taxonomy
- Nuclear Radiology Physician 2085N0904X
- License number
- A110482 CA
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S, Orange, CA 92868
- Phone
- (714) 456-8888
- Enumerated
- Feb 13, 2013
- Record last updated
- Oct 27, 2025
- Medicare enrollment
- Enrolled (PECOS I20160921001782); accepts Medicare assignment
- Medical or professional school
- Un Of California, Irvine, College Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest nuclear radiology physician records → All 64 in California → Look up another NPI →
Also registered at 101 The City Dr S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danny Abad, PAPhysician Assistant1477158673
- Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
- Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
- Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
- Eric AbelloOtolaryngology Physician1922566215
- Brandon Abeyta, MDAnesthesiology Physician1841291804
Verify Sonya Janet Koo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A110482Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- UC RegentsOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sonya Janet Koo among 64 nuclear radiology physician records in California
Sonya Janet Koo, MD is one of 64 nuclear radiology physician records with a practice address in California. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 83% of them.
- NPI issued2013 · 83% of these records are older, 13% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2008 · median 2000 among the 42 with a school on file
- Record last updated2025 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085N0904X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nuclear Radiology Physician providers in California
There are 64 nuclear radiology physician records in California.
All 64 in California → Every provider in Orange → Nuclear Radiology Physician nationwide →
The 8 nuclear radiology physician records with the nearest ZIP codes
- Sindu Alexander, M.D.Orange, CA 928681811120371
- June Marie Herman, MDOrange, CA 928681205916368
- Tatiana Kain, M.D.Orange, CA 928681871591073
- Mark Tran, M.D.Orange, CA 928681316382377
- Samuel Kipper, M.D.Santa Ana, CA 927051265498836
- Aaron Esrig, M.D.Laguna Beach, CA 926511023212297
- E. Kim, M.D.Irvine, CA 926181235222902
- Ved Prakash, M.D,San Bernardino, CA 924081932123809
Common questions
What is Sonya Janet Koo, MD's NPI number?
Sonya Janet Koo, MD's National Provider Identifier (NPI) is 1386983138, issued on Feb 13, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Sonya Janet Koo, MD located?
The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 456-8888. Providers update this record themselves, so call before visiting.
How can I verify Sonya Janet Koo, MD's license?
NPPES lists California license number A110482, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.