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Mark Lawrenz, LCSW
NPI 1689768871 · Clinical Social Worker · Fullerton, CA
Mark Lawrenz, LCSW is a Clinical Social Worker provider in Fullerton, CA (NPI 1689768871).
Provider details
- NPI number
- 1689768871
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- LCS21941 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
211 W Commonwealth Ave Ste 204
Fullerton, CA 92832-1810
Phone: (714) 447-7099
Street-level locationGet directions
Mailing address
4112 E 5th St
Long Beach, CA 90814-1738
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Lawrenz's NPI number?
- Mark Lawrenz's National Provider Identifier (NPI) is 1689768871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Lawrenz's specialty?
- Mark Lawrenz is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Lawrenz located?
- Mark Lawrenz's practice location on file with NPPES is 211 W Commonwealth Ave Ste 204, Fullerton, CA 92832-1810.
- What is Mark Lawrenz's phone number?
- The practice phone number listed in the NPPES registry for Mark Lawrenz is (714) 447-7099.
- Is Mark Lawrenz's NPI active?
- Yes — Mark Lawrenz's NPI (1689768871) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.