Zachariah Harrison
NPI 1538860507 · Medical Physician Assistant · Chino Hills, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachariah Harrison is a Medical Physician Assistant provider in Chino Hills, CA (NPI 1538860507).
Provider details
- NPI number
- 1538860507
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Medical Physician Assistant363AM0700X
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
5 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (4)
- 2140 Grand Ave Ste 125Chino Hills, CA 91709-6802Phone: (909) 630-7875Fax: (909) 469-2107
- 3110 Chino Ave Ste 150bChino Hills, CA 91709-1295Phone: (909) 631-7868
- 2333 Foothill Blvd Ste CLa Verne, CA 91750-3027Phone: (909) 392-6511
- 101 7th St SwOrange City, IA 51041-1923Phone: (909) 247-9933
Registry dates
- Enumerated
- 2023-03-15
- Last updated
- 2026-02-20
- Certified
- 2026-02-20
Frequently asked questions
- What is Zachariah Harrison's NPI number?
- Zachariah Harrison's National Provider Identifier (NPI) is 1538860507, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachariah Harrison's specialty?
- Zachariah Harrison is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Zachariah Harrison located?
- Zachariah Harrison's practice location on file with NPPES is 3110 Chino Ave Ste 150a, Chino Hills, CA 91709-1295.
- What is Zachariah Harrison's phone number?
- The practice phone number listed in the NPPES registry for Zachariah Harrison is (909) 630-7940.
- Does Zachariah Harrison accept Medicare?
- Zachariah Harrison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachariah Harrison's NPI active?
- Yes — Zachariah Harrison's NPI (1538860507) is active in the NPPES registry as of the last update on 2026-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.