What is Michael Klein's NPI number?

Michael Klein's National Provider Identifier (NPI) is 1518800242, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Michael Klein's specialty?

Michael Klein is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).

Where is Michael Klein located?

Michael Klein's practice location on file with NPPES is 1401 W Valencia Dr, Fullerton, CA 92833-3938.

What is Michael Klein's phone number?

The practice phone number listed in the NPPES registry for Michael Klein is (714) 477-7700.

Is Michael Klein's NPI active?

Yes — Michael Klein's NPI (1518800242) is active in the NPPES registry as of the last update on 2026-04-09.

IndividualActive

Michael Klein

NPI 1518800242 · Counselor · Fullerton, CA

Michael Klein is a Counselor provider in Fullerton, CA (NPI 1518800242).

Provider details

NPI number: 1518800242
Entity type: Individual
Primary specialty: CounselorBehavioral Health & Social Service Providers
Sole proprietor: Yes

Specialties & taxonomies

CounselorPrimary101Y00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(46/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

1401 W Valencia Dr

Fullerton, CA 92833-3938

Phone: (714) 477-7700

Street-level locationGet directions

More CA providers

Mailing address