Quick answers
- Which hospitals does Diokson Rena work at?
- Medicare's official clinician data lists Diokson Rena at 1 hospital: UCSF Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Diokson Rena see patients?
- Medicare's clinician data lists 3 practice locations, including Walnut Creek, CA, San Francisco, CA and Santa Ana, CA. Call before your visit to confirm the address.
- What is Diokson Rena's specialty?
- Medicare lists Physical Medicine and Rehabilitation as the primary specialty.
- Does Diokson Rena accept Medicare assignment?
- Yes. Medicare's clinician data says Diokson Rena 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 Diokson Rena?
- (925) 482-8151, as listed in official Medicare / NPI Registry data.
- What is Diokson Rena's NPI number?
- 1205919008. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Diokson Rena works
Medicare's Facility Affiliation Data lists Diokson Rena at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UCSF Medical CenterSan Francisco, CA · Acute Care Hospital · CCN 050454
Practice locations
Addresses where Diokson Rena is enrolled with Medicare (CMS data updated 2026-10-02).
- 450 N Wiget LnWalnut Creek, CA 94598 (925) 482‑8151
- 500 Sutter St, Suite 320San Francisco, CA 94102 (415) 757‑0814
- 999 N Tustin Ave, Suite 201Santa Ana, CA 92705 (714) 975‑7950
Group practices
Medicare enrollment lists Diokson Rena as a member of this group (CMS data updated 2026-10-02).
- Integrated Pain Management Medical Group Inc44 clinicians in the group
Specialties
Find other Physical Medicine and Rehabilitation doctors in California →
Other rehabilitation doctors in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205919008 |
| 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