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MARISSA HARRINGTON LCSW
NPI 1831727999
Social Worker - Clinical in Hampton Bays, NY

Active since April 01, 2020PECOS EnrolledAccepts Medicare Assignment
182 WEST MONTAUK HWY, BLDG B SUITE B, HAMPTON BAYS, NY 11946(631) 594-3910(631) 594-3911 Get Directions Write a Review

NPPES record last updated: January 23, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Sep 18, 2020, Apr 1, 2020 (2 updates tracked since 2020).

About Marissa Harrington Lcsw NPPES

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

MARISSA HARRINGTON LCSW (NPI 1831727999) is an individual clinical provider in Hampton Bays, New York, licensed in New York (097765) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1831727999
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMARISSA HARRINGTONCredential: LCSW
Location Address182 WEST MONTAUK HWY, BLDG B SUITE BHampton Bays, NY 11946
Mailing Address4 Springville Rd Ste BHampton Bays, NY 11946-2290
Phone(631) 594-3910
Fax(631) 594-3911
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateApril 1, 2020
Last NPPES UpdateJanuary 23, 20252 updates tracked since enumeration
NPPES CertifiedJanuary 23, 2025
✔ NPI 1831727999 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 · 097765
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 108856-01 (NY)
182 WEST MONTAUK HWY, Hampton Bays, NY 11946
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marissa Harrington Lcsw 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 ID4880124577
PECOS Enrollment IDI20250211001326
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11946 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 6

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

HAMPTON RADIOLOGY PC
Clinic/Center (Radiology)
182 WEST MONTAUK HWY
HAMPTON BAYS, NY 11946
Suffolk County (631) 723-1232
JULIE BATES MD
Internal Medicine
182 WEST MONTAUK HWY, BLDG B STE B
HAMPTON BAYS, NY 11946
Suffolk County (631) 723-0022
EAST END WOMENS HEALTH CARE P.C.
Obstetrics & Gynecology
182 WEST MONTAUK HWY, SUITE B
HAMPTON BAYS, NY 11946
Suffolk County (631) 723-2225
WILLIAM A GILMARTIN MD
Internal Medicine
182 WEST MONTAUK HWY, BLDG B SUITE H
HAMPTON BAYS, NY 11946
Suffolk County (631) 723-0022
ALICE MEI DO
Internal Medicine
182 WEST MONTAUK HWY, BLDG B SUITE H
HAMPTON BAYS, NY 11946
Suffolk County (631) 723-0022
EAST END WOMENS HEALTH CARE
Obstetrics & Gynecology
182 WEST MONTAUK HWY, SUITE B
HAMPTON BAYS, NY 11946
Suffolk County (631) 723-2225

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 Marissa Harrington's NPI number?

The NPI number for Marissa Harrington is 1831727999. It was assigned to this individual provider in the NPPES registry on April 1, 2020.

Where is Marissa Harrington located?

Marissa Harrington practices at 182 West Montauk Hwy Bldg B Suite B, Hampton Bays, NY 11946. The listed phone number is (631) 594-3910.

What is Marissa Harrington's specialty?

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

Is Marissa Harrington enrolled in Medicare?

Yes. Marissa Harrington 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.

When was this NPI record last updated?

The NPPES record for Marissa Harrington was last updated on January 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.