Quick answers
- Which hospitals does Omar J. On work at?
- Medicare's official clinician data lists Omar J. On at 3 hospitals: Adventist Health Clearlake, Enloe Health and Oroville Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Omar J. On see patients?
- Medicare's clinician data lists 1 practice location in Chico, CA. Call before your visit to confirm the address.
- What is Omar J. On's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Omar J. On accept Medicare assignment?
- Yes. Medicare's clinician data says Omar J. On 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 Omar J. On?
- (530) 774-2650, as listed in official Medicare / NPI Registry data.
- What is Omar J. On's NPI number?
- 1295889871. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Omar J. On works
Medicare's Facility Affiliation Data lists Omar J. On at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health ClearlakeClearlake, CA · Critical Access Hospital · CCN 051317
- Enloe HealthChico, CA · Acute Care Hospital · CCN 050039
- Oroville HospitalOroville, CA · Acute Care Hospital · CCN 050030
Practice locations
Addresses where Omar J. On is enrolled with Medicare (CMS data updated 2026-10-02).
- 774 E AveChico, CA 95926 (530) 774‑2650
Group practices
Medicare enrollment lists Omar J. On as a member of this group (CMS data updated 2026-10-02).
- Chico Dermatology Inc2 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Chico
Clinicians with the same Medicare primary specialty in Chico, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295889871 |
| 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