1. Home
  2. Directory
  3. New York
  4. South Setauket
  5. Marriage Family Therapist
  6. NPI Profile

ALEXANDRA GLEASON LMFT
NPI 1154867877
Marriage & Family Therapist in South Setauket, NY

Active since January 19, 2017PECOS Enrolled
15 DAVE LN, SOUTH SETAUKET, NY 11720(516) 993-6678 Get Directions Write a Review

NPPES record last updated: January 19, 2017. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Alexandra Gleason Lmft NPPES

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

ALEXANDRA GLEASON LMFT (NPI 1154867877) is an individual marriage & family therapist in South Setauket, New York, licensed in New York (001311) and active in the NPI registry since January 2017. She is enrolled in Medicare PECOS and is a graduate of Hofstra North Shore - Lij School Of Medicine (2015).

NPPES Registry Identity

NPI1154867877
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameALEXANDRA GLEASONCredential: LMFT
Location Address15 DAVE LNSouth Setauket, NY 11720-1006
Mailing Address3771 Nesconset Hwy, Ste 214South Setauket, NY 11720-1163 · (516) 993-6678
Phone(516) 993-6678
Sole ProprietorYes
Medical School CMSHofstra North Shore - Lij School Of MedicineGraduated 2015
Enumeration DateJanuary 19, 2017
✔ NPI 1154867877 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in NY · 001311
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
15 DAVE LN, South Setauket, NY 11720
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alexandra Gleason Lmft is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8325529183
PECOS Enrollment IDI20260220000109
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 Alexandra Gleason reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Cs Medical Associates, P.C.
4.9 mi
Rehabilitation, Substance Use Disorder
100 GRANNY ROAD, SUITE 2
Farmingville, NY 11738
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Cs Medical Associates, PC
  • 81 clinicians in this Medicare group
NPI 1992210231 (631) 696-4357

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

Other Providers at the Same Location NPPES

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

ALEXANDRA GLEASON, LMFT, PLLC
Marriage & Family Therapist
15 DAVE LN
SOUTH SETAUKET, NY 11720
Suffolk County (516) 993-6678

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 Alexandra Gleason's NPI number?

The NPI number for Alexandra Gleason is 1154867877. It was assigned to this individual provider in the NPPES registry on January 19, 2017.

Where is Alexandra Gleason located?

Alexandra Gleason practices at 15 Dave Ln, South Setauket, NY 11720. The listed phone number is (516) 993-6678.

What is Alexandra Gleason's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is Alexandra Gleason enrolled in Medicare?

Yes. Alexandra Gleason is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alexandra Gleason's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Gleason reassigns Medicare benefits to Cs Medical Associates, P.C. (Farmingville, 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 Alexandra Gleason's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexandra Gleason accept?

Health plans from Oscar Health list Alexandra Gleason as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alexandra Gleason was last updated on January 19, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.