Quick answers
- Where does Jonathan Chien see patients?
- Medicare's clinician data lists 4 practice locations, including Montebello, CA, Carson, CA and Las Vegas, NV. Call before your visit to confirm the address.
- What is Jonathan Chien's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Jonathan Chien accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan Chien 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 Jonathan Chien offer telehealth?
- Medicare's clinician data says Jonathan Chien offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jonathan Chien?
- (323) 720-1144, as listed in official Medicare / NPI Registry data.
- What is Jonathan Chien's NPI number?
- 1558327270. 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 Jonathan Chien is enrolled with Medicare (CMS data updated 2026-10-02).
- 2601 Via CampoMontebello, CA 90640 (323) 720‑1144
- 2603 Via CampoMontebello, CA 90640 (323) 720‑1144
- 824 E Carson St, Suite 104Carson, CA 90745 (310) 830‑9706
- PO Box, Suite 35380Las Vegas, NV 89133
Group practices
Medicare enrollment lists Jonathan Chien as a member of this group (CMS data updated 2026-10-02).
- Healthcare Partners Affiliates Medical Group754 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Montebello
Clinicians with the same Medicare primary specialty in Montebello, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1558327270 |
| 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