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CRYSTAL MARROQUIN LMSW
NPI 1770476988
Social Worker in Dallas, TX

Active since May 29, 2025
4925 GREENVILLE AVE STE 1050, DALLAS, TX 75206(214) 918-1999 Get Directions Write a Review

NPPES record last updated: October 20, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Crystal Marroquin Lmsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CRYSTAL MARROQUIN LMSW (NPI 1770476988) is an individual social worker in Dallas, Texas and active in the NPI registry since May 2025.

NPPES Registry Identity

NPI1770476988
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameCRYSTAL MARROQUINCredential: LMSW
Location Address4925 GREENVILLE AVE STE 1050Dallas, TX 75206-4084
Mailing Address4925 Greenville Ave Ste 1050Dallas, TX 75206-4084 · (214) 918-1999
Phone(214) 918-1999
Sole ProprietorYes
Enumeration DateMay 29, 2025
Last NPPES UpdateOctober 20, 2025
NPPES CertifiedOctober 20, 2025
✔ NPI 1770476988 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
4925 GREENVILLE AVE STE 1050, Dallas, TX 75206
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Other Names 1

Former Name (1)Crystal Tyson-collins

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LESLIE MULLICAN LCSW
Social Worker (Clinical)
4925 GREENVILLE AVE STE 1050
DALLAS, TX 75206
Dallas County (214) 918-1999
ASHLEY WETTER LMSW
Social Worker
4925 GREENVILLE AVE STE 1050
DALLAS, TX 75206
Dallas County (214) 918-1999
POONAM AVINASHI VINCHHI DUBAL LP, LSSP
Psychologist
4925 GREENVILLE AVE STE 1050
DALLAS, TX 75206
Dallas County (214) 918-1999
BRITTANY FIELD
Psychologist
4925 GREENVILLE AVE STE 1050
DALLAS, TX 75206
Dallas County (214) 918-1999
LACIE L PALMER LCSW
Social Worker (Clinical)
4925 GREENVILLE AVE STE 1050
DALLAS, TX 75206
Dallas County (214) 918-1999
CHELSEA DELORGE LCSW
Social Worker (Clinical)
4925 GREENVILLE AVE STE 1050
DALLAS, TX 75206
Dallas County (214) 918-1999
MONICA BROOKHART LPC-I
Counselor (Professional)
4925 GREENVILLE AVE STE 1050
DALLAS, TX 75206
Dallas County (214) 918-1999
BRIANNA DAGLEY
Social Worker (Clinical)
4925 GREENVILLE AVE STE 1050
DALLAS, TX 75206
Dallas County (214) 918-1999

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Crystal Marroquin's NPI number?

The NPI number for Crystal Marroquin is 1770476988. It was assigned to this individual provider in the NPPES registry on May 29, 2025. The provider is also known as Crystal Tyson-Collins.

Where is Crystal Marroquin located?

Crystal Marroquin practices at 4925 Greenville Ave Ste 1050, Dallas, TX 75206. The listed phone number is (214) 918-1999.

What is Crystal Marroquin's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Crystal Marroquin was last updated on October 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.