Maria Nissly, LCSW
NPI 1740448851 · Clinical Social Worker · Glendora, CA
Maria Nissly, LCSW is a Clinical Social Worker provider in Glendora, CA (NPI 1740448851).
Provider details
- NPI number
- 1740448851
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
18 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
Mailing address
Registry dates
- Enumerated
- 2008-05-26
- Last updated
- 2015-08-13
Frequently asked questions
- What is Maria Nissly's NPI number?
- Maria Nissly's National Provider Identifier (NPI) is 1740448851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Nissly's specialty?
- Maria Nissly is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Maria Nissly located?
- Maria Nissly's practice location on file with NPPES is 409 S Glendora Ave, Glendora, CA 91741-6216.
- What is Maria Nissly's phone number?
- The practice phone number listed in the NPPES registry for Maria Nissly is (323) 683-3983.
- Is Maria Nissly's NPI active?
- Yes — Maria Nissly's NPI (1740448851) is active in the NPPES registry as of the last update on 2015-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.