What is Mark Matthews's NPI number?

Mark Matthews's National Provider Identifier (NPI) is 1942049796, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Matthews's specialty?

Mark Matthews is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).

Where is Mark Matthews located?

Mark Matthews's practice location on file with NPPES is 4211 Avalon Blvd, Los Angeles, CA 90011-5622.

What is Mark Matthews's phone number?

The practice phone number listed in the NPPES registry for Mark Matthews is (323) 233-0425.

Is Mark Matthews's NPI active?

Yes — Mark Matthews's NPI (1942049796) is active in the NPPES registry as of the last update on 2025-09-29.

IndividualActive

Mark Matthews

NPI 1942049796 · Social Worker · Los Angeles, CA

Mark Matthews is a Social Worker provider in Los Angeles, CA (NPI 1942049796).

Provider details

NPI number: 1942049796
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No
License: ASW122604 (CA)

Specialties & taxonomies

Social WorkerPrimary104100000XLicense ASW122604 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(56/100 index)

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

Registry tenure38% of score
2 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

4211 Avalon Blvd

Los Angeles, CA 90011-5622

Phone: (323) 233-0425

Fax: (323) 233-5015

Street-level locationGet directions

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Mailing address