Quick answers
- Which hospitals does Jonardi Handoko work at?
- Medicare's official clinician data lists Jonardi Handoko at 4 hospitals: Chino Valley Medical Center, Montclair Hospital Medical Center, Pomona Valley Hospital Medical Center and San Antonio Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonardi Handoko see patients?
- Medicare's clinician data lists 4 practice locations, including Pomona, CA and Upland, CA. Call before your visit to confirm the address.
- What is Jonardi Handoko's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does Jonardi Handoko accept Medicare assignment?
- Yes. Medicare's clinician data says Jonardi Handoko 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 Jonardi Handoko?
- (909) 865-9500, as listed in official Medicare / NPI Registry data.
- What is Jonardi Handoko's NPI number?
- 1780664581. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonardi Handoko works
Medicare's Facility Affiliation Data lists Jonardi Handoko at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chino Valley Medical CenterChino, CA · Acute Care Hospital · CCN 050586
- Montclair Hospital Medical CenterMontclair, CA · Acute Care Hospital · CCN 050758
- Pomona Valley Hospital Medical CenterPomona, CA · Acute Care Hospital · CCN 050231
- San Antonio Regional HospitalUpland, CA · Acute Care Hospital · CCN 050099
Practice locations
Addresses where Jonardi Handoko is enrolled with Medicare (CMS data updated 2026-10-02).
- 1798 N Garey AvePomona, CA 91767 (909) 865‑9500
- 2475 N Garey AvePomona, CA 91767 (909) 596‑9997
- 255 E Bonita AvePomona, CA 91767 (909) 596‑7733
- 811 E 11th St, Suite 206Upland, CA 91786 (909) 931‑2727
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Pomona
Clinicians with the same Medicare primary specialty in Pomona, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1977 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780664581 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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