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

Dr. Geraldine Chang, MD

Individual provider Diagnostic Radiology Physician · NPI 1831486539

Dr. Geraldine Chang, MD practises Diagnostic Radiology in Northridge, California. Graduated from University of California, San Diego School of Medicine in 2011, 15 years ago. Practices with Innovative Radiology PA, a 37-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
15
Trained at
University of California, San Diego School of Medicine
Licensed in
CA
In the registry since
2011
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

18436 Roscoe Blvd
Northridge, CA 91325-4107
Phone: (818) 435-1400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence A122612 (CA)

Record details

NPI number1831486539
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2011
Last updated in NPPESDecember 5, 2017

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Also practisesINTERVENTIONAL RADIOLOGY, NUCLEAR MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice Innovative Radiology Pa — 37 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations12 on file with Medicare

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 patients6,140
Services billed 27,545 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Colleagues at Innovative Radiology PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 37 clinicians in the practice; 12 are shown here.

Other providers in Northridge