Quick answers
- Does Zachariah D. Harrison accept Medicare assignment?
- Medicare's clinician data says Zachariah D. Harrison may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- What is Zachariah D. Harrison's NPI number?
- 1538860507. 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 Zachariah D. Harrison is enrolled with Medicare (CMS data updated October 2, 2026).
- 2140 Grand Ave, Suite 125Chino Hills, CA 91709 (909) 630‑7875
Group practices
Medicare enrollment lists Zachariah D. Harrison as a member of this group (CMS data updated October 2, 2026).
- Premier Family Medicine Associates, Inc65 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Chino Hills
Clinicians with the same Medicare primary specialty in Chino Hills, CA — not a recommendation.
Other clinicians in Premier Family Medicine Associates, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1538860507 |
| 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 October 2, 2026, retrieved October 29, 2026
- 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