Quick answers
- Where does Geraldine Chang see patients?
- Medicare's clinician data lists 11 practice locations, including Toluca Lake, CA, Modesto, CA and Stockton, CA. Call before your visit to confirm the address.
- What is Geraldine Chang's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty, and also Interventional Radiology and Nuclear Medicine.
- Does Geraldine Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Geraldine Chang accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Geraldine Chang?
- (818) 762-2626, as listed in official Medicare / NPI Registry data.
- What is Geraldine Chang's NPI number?
- 1831486539. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Geraldine Chang is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 11; the Medicare profile lists all.
- 10101 Riverside DrToluca Lake, CA 91602 (818) 762‑2626
- 157 E Coolidge AveModesto, CA 95350 (209) 524‑6800
- 1801 E March Ln, Suite A130Stockton, CA 95210 · Stockton Diagnostic Imaging
- 2201 Walnut Ave, Suite 150Fremont, CA 94538 (510) 713‑1234
- 2301 Bahamas DrBakersfield, CA 93309 (661) 326‑9600
Group practices
Medicare enrollment lists Geraldine Chang as a member of these groups (CMS data updated 2026-10-02).
- Cedars-Sinai Medical Care Foundation1,692 clinicians in the group
- Beverly Radiology Medical Group III328 clinicians in the group
- Desert Advanced Imaging Medical Center208 clinicians in the group
- Kern Radiology Medical Group Inc100 clinicians in the group
- Norcal Imaging82 clinicians in the group
- Modesto Advanced Diagnostic Imaging Medical Center65 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Interventional Radiologyalso
- Nuclear Medicinealso
Other radiologists in Toluca Lake
Clinicians with the same Medicare primary specialty in Toluca Lake, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Diego School Of Medicine |
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831486539 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians