Ian Mac Allister, PA-C
NPI 1659870244 · Physician Assistant · San Jose, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ian Mac Allister, PA-C is a Physician Assistant provider in San Jose, CA (NPI 1659870244).
Provider details
- NPI number
- 1659870244
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 55313 (CA)
Specialties & taxonomies
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
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2018-02-08
- Last updated
- 2022-10-27
- Certified
- 2022-05-13
Frequently asked questions
- What is Ian Mac Allister's NPI number?
- Ian Mac Allister's National Provider Identifier (NPI) is 1659870244, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Mac Allister's specialty?
- Ian Mac Allister is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ian Mac Allister located?
- Ian Mac Allister's practice location on file with NPPES is 255 North Jackson Avenue, San Jose, CA 95116.
- What is Ian Mac Allister's phone number?
- The practice phone number listed in the NPPES registry for Ian Mac Allister is (415) 290-3234.
- Does Ian Mac Allister accept Medicare?
- Ian Mac Allister is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ian Mac Allister's NPI active?
- Yes — Ian Mac Allister's NPI (1659870244) is active in the NPPES registry as of the last update on 2022-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.