1. Home
  2. Directory
  3. New York
  4. South Setauket
  5. Nurse Practitioner
  6. NPI Profile

MS. ELISA M MATTEI PMHNP
NPI 1336550359
Nurse Practitioner - Psychiatric/Mental Health in South Setauket, NY

Active since May 13, 2014PECOS EnrolledAccepts Medicare Assignment
3771 NESCONSET HWY STE 107, SOUTH SETAUKET, NY 11720(631) 881-4569(631) 944-8000 Get Directions Write a Review

NPPES record last updated: January 6, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 6, 2026, Mar 27, 2025, Dec 4, 2024 and 2 more (5 updates tracked since 2022).

About Ms. Elisa M Mattei Pmhnp NPPES

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

MS. ELISA M MATTEI PMHNP (NPI 1336550359) is an individual psychiatric/mental health provider in South Setauket, New York, licensed in New York (F403765-01) and active in the NPI registry since May 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2013).

NPPES Registry Identity

NPI1336550359
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMS. ELISA M MATTEICredential: PMHNP
Location Address3771 NESCONSET HWY STE 107South Setauket, NY 11720-1155
Mailing Address3771 Nesconset Hwy Ste 107South Setauket, NY 11720-1155 · (631) 881-4569 · Fax (631) 944-8000
Phone(631) 881-4569
Fax(631) 944-8000
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateMay 13, 2014
Last NPPES UpdateJanuary 6, 20265 updates tracked since enumeration
NPPES CertifiedJanuary 6, 2026
✔ NPI 1336550359 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in NY · F403765-01
3771 NESCONSET HWY STE 107, South Setauket, NY 11720
Open in Google Maps ↗

Other Identifiers 1

MedicaidF403765-01NY

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

Ms. Elisa M Mattei Pmhnp 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 ID2062924046
PECOS Enrollment IDI20250625001663
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 11720 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
Most-billed visit code 99214
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 4

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

JAY A HART LCSW
Social Worker (Clinical)
3771 NESCONSET HWY STE 107
SOUTH SETAUKET, NY 11720
Suffolk County (631) 250-4141
ALEXANDRIA HOLLAND
Social Worker (Clinical)
3771 NESCONSET HWY STE 107
SOUTH SETAUKET, NY 11720
Suffolk County (631) 250-4141
HART TO HEART CLINICAL COUNSELING SERVICES LCSW PC
Social Worker (Clinical)
3771 NESCONSET HWY STE 107
SOUTH SETAUKET, NY 11720
Suffolk County (631) 250-4141
DOVE PSYCHIATRY- NP IN PSYCHIATRY, PLLC
Nurse Practitioner (Psychiatric/Mental Health)
3771 NESCONSET HWY STE 107
SOUTH SETAUKET, NY 11720
Suffolk County (631) 881-4569

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 Elisa Mattei's NPI number?

The NPI number for Elisa Mattei is 1336550359. It was assigned to this individual provider in the NPPES registry on May 13, 2014.

Where is Elisa Mattei located?

Elisa Mattei practices at 3771 Nesconset Hwy Ste 107, South Setauket, NY 11720. The listed phone number is (631) 881-4569.

What is Elisa Mattei's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Elisa Mattei enrolled in Medicare?

Yes. Elisa Mattei 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 Elisa Mattei was last updated on January 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.