Quick answers
- Where does Ruey-Jen Chang see patients?
- Medicare's clinician data lists 2 practice locations, including Monterey Park, CA and La Palma, CA. Call before your visit to confirm the address.
- What is Ruey-Jen Chang's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Ruey-Jen Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Ruey-Jen 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.
- Does Ruey-Jen Chang offer telehealth?
- Medicare's clinician data says Ruey-Jen Chang offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ruey-Jen Chang?
- (323) 796-0170, as listed in official Medicare / NPI Registry data.
- What is Ruey-Jen Chang's NPI number?
- 1699064006. 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 Ruey-Jen Chang is enrolled with Medicare (CMS data updated 2026-10-02).
- 2063 S Atlantic Blvd, Suite 300Monterey Park, CA 91754 (323) 796‑0170
- 5451 La Palma Ave, Suite 25La Palma, CA 90623
Group practices
Medicare enrollment lists Ruey-Jen Chang as a member of this group (CMS data updated 2026-10-02).
- Arthritis and Osteoporosis Medical Center, Inc10 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Monterey Park
Clinicians with the same Medicare primary specialty in Monterey Park, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1699064006 |
| 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