What is Lisa Irwin's NPI number?

Lisa Irwin's National Provider Identifier (NPI) is 1033578299, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Lisa Irwin's specialty?

Lisa Irwin is listed in the NPPES registry with a primary specialty of Peer Specialist (Other Service Providers).

Where is Lisa Irwin located?

Lisa Irwin's practice location on file with NPPES is 401 Imperial Hwy, Fullerton, CA 92835-1145.

What is Lisa Irwin's phone number?

The practice phone number listed in the NPPES registry for Lisa Irwin is (714) 447-7000.

Is Lisa Irwin's NPI active?

Yes — Lisa Irwin's NPI (1033578299) is active in the NPPES registry as of the last update on 2025-06-17.

IndividualActive

Lisa Irwin

NPI 1033578299 · Peer Specialist · Fullerton, CA

Lisa Irwin is a Peer Specialist provider in Fullerton, CA (NPI 1033578299).

Provider details

NPI number: 1033578299
Entity type: Individual
Primary specialty: Peer SpecialistOther Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Peer SpecialistPrimary175T00000X
Other Service Providers

Profile Score

Established profile(66/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
10 yrs in NPPES registry
Profile completeness38% of score
83% 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

401 Imperial Hwy

Fullerton, CA 92835-1145

Phone: (714) 447-7000

Fax: (714) 447-7003

Approximate (ZIP-level) locationGet directions

More CA providers

Mailing address