Cheri Mason, LCSW
NPI 1558566141 · Clinical Social Worker · San Marcos, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cheri Mason, LCSW is a Clinical Social Worker provider in San Marcos, CA (NPI 1558566141).
Provider details
- NPI number
- 1558566141
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- LCS14425 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-06-15
- Last updated
- 2023-02-24
- Certified
- 2023-02-24
Frequently asked questions
- What is Cheri Mason's NPI number?
- Cheri Mason's National Provider Identifier (NPI) is 1558566141, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cheri Mason's specialty?
- Cheri Mason is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Cheri Mason located?
- Cheri Mason's practice location on file with NPPES is 300 Rancheros Dr, San Marcos, CA 92069-2967.
- What is Cheri Mason's phone number?
- The practice phone number listed in the NPPES registry for Cheri Mason is (858) 279-1223.
- Does Cheri Mason accept Medicare?
- Cheri Mason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cheri Mason's NPI active?
- Yes — Cheri Mason's NPI (1558566141) is active in the NPPES registry as of the last update on 2023-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.