Crystal Marsonia, LCSW
NPI 1811293483 · Clinical Social Worker · Brooklyn, NY
Enrolled with Medicare as Order and Referring Only - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Marsonia, LCSW is a Clinical Social Worker provider in Brooklyn, NY (NPI 1811293483).
Provider details
- NPI number
- 1811293483
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 63275 (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
15 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
- 2011-01-31
- Last updated
- 2024-09-19
- Certified
- 2024-09-19
Frequently asked questions
- What is Crystal Marsonia's NPI number?
- Crystal Marsonia's National Provider Identifier (NPI) is 1811293483, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Marsonia's specialty?
- Crystal Marsonia is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Crystal Marsonia located?
- Crystal Marsonia's practice location on file with NPPES is 451 Clarkson Ave, Brooklyn, NY 11203-2054.
- What is Crystal Marsonia's phone number?
- The practice phone number listed in the NPPES registry for Crystal Marsonia is (718) 245-7259.
- Does Crystal Marsonia accept Medicare?
- Crystal Marsonia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Marsonia's NPI active?
- Yes — Crystal Marsonia's NPI (1811293483) is active in the NPPES registry as of the last update on 2024-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.