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DENISE MARRERO LMSW
NPI 1902361025
Social Worker - Clinical in Staten Island, NY

Active since February 02, 2019PECOS EnrolledAccepts Medicare Assignment
1110 SOUTH AVE STE 404, STATEN ISLAND, NY 10314(800) 277-4680 Get Directions Write a Review

NPPES record last updated: August 16, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 16, 2025, Aug 17, 2021, Feb 2, 2019 (3 updates tracked since 2019).

About Denise Marrero Lmsw NPPES

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

DENISE MARRERO LMSW (NPI 1902361025) is an individual clinical provider in Staten Island, New York, licensed in New York (100748) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS and is a graduate of Fordham University School Of Medicine (2007).

NPPES Registry Identity

NPI1902361025
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameDENISE MARREROCredential: LMSW
Location Address1110 SOUTH AVE STE 404Staten Island, NY 10314-3411
Mailing Address214 Park LnMassapequa, NY 11758-4311 · (917) 853-8415
Phone(800) 277-4680
Sole ProprietorNo
Medical School CMSFordham University School Of MedicineGraduated 2007
Enumeration DateFebruary 2, 2019
Last NPPES UpdateAugust 16, 20253 updates tracked since enumeration
NPPES CertifiedAugust 16, 2025
✔ NPI 1902361025 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in NY · 100748
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedSocial WorkerTaxonomy 104100000X · License 094103 (NY)
1110 SOUTH AVE STE 404, Staten Island, NY 10314
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Denise Marrero Lmsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6002304938
PECOS Enrollment IDI20251023000155
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Denise Marrero reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Integrity Social Work Services LLC
Same address
Mental Health
1110 SOUTH AVE STE 404
Staten Island, NY 10314
  • Reassigned Medicare billing, New York enrollment
  • 131 clinicians in this Medicare group
NPI 1972715456 (718) 494-2858

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10314 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $67.40 – $203.53
Typical copayment $0.00 (range $16.85 – $50.88)
Most-billed visit code NA
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 9

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

ANGELICA MARIE VASQUEZ LMSW
Social Worker
1110 SOUTH AVE STE 404
STATEN ISLAND, NY 10314
Richmond County (800) 277-4680
OUT OF THE STORM SENIOR SERVICES INC.
Social Worker (Clinical)
1110 SOUTH AVE STE 404
STATEN ISLAND, NY 10314
Richmond County (718) 663-4151
JAMES A HOPPNER LCSW
Social Worker (Clinical)
1110 SOUTH AVE STE 404
STATEN ISLAND, NY 10314
Richmond County (800) 277-4680
JANET MITCHELL
Social Worker
1110 SOUTH AVE STE 404
STATEN ISLAND, NY 10314
Richmond County (800) 277-4680
BRAULIO AGUIRRE
Social Worker
1110 SOUTH AVE STE 404
STATEN ISLAND, NY 10314
Richmond County (800) 277-4680
INTEGRITY PSYCHOLOGICAL SERVICES, PLLC
Psychologist (Clinical)
1110 SOUTH AVE STE 404
STATEN ISLAND, NY 10314
Richmond County (800) 277-4680
MS. JOY ULOMA EJIOFOR M.SC. CSW, LMSW
Social Worker
1110 SOUTH AVE STE 404
STATEN ISLAND, NY 10314
Richmond County (347) 209-7917
INTEGRITY SOCIAL WORK SERVICES LLC
Counselor (Mental Health)
1110 SOUTH AVE STE 404
STATEN ISLAND, NY 10314
Richmond County (718) 494-2858

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 Denise Marrero's NPI number?

The NPI number for Denise Marrero is 1902361025. It was assigned to this individual provider in the NPPES registry on February 2, 2019.

Where is Denise Marrero located?

Denise Marrero practices at 1110 South Ave Ste 404, Staten Island, NY 10314. The listed phone number is (800) 277-4680.

What is Denise Marrero's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Denise Marrero enrolled in Medicare?

Yes. Denise Marrero is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Denise Marrero's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Denise Marrero reassigns Medicare benefits to Integrity Social Work Services LLC (Staten Island, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Denise Marrero's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Denise Marrero was last updated on August 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.