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Nurse Practitioner

Karen M. Matragrano

Sees patients in Smithtown, NY · Port Jefferson Station, NY · New York

Summary

Karen M. Matragrano (Nurse Practitioner) is enrolled with Medicare at 2 practice locations in Smithtown, NY and Port Jefferson Station, NY. NPI 1629356571. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(631) 979‑1625 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Karen M. Matragrano, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

2Practice locations
Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
15Years since medical school (graduated 2011)
State University Of New York At Stony Brook, School Of MedicineMedical school
FemaleGender (as listed)
Gastroenterology Associates of Suffolk PCGroup practice

Quick answers

Where does Karen M. Matragrano see patients?
Medicare's clinician data lists 2 practice locations, including Smithtown, NY and Port Jefferson Station, NY. Call before your visit to confirm the address.
What is Karen M. Matragrano's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Karen M. Matragrano accept Medicare assignment?
Yes. Medicare's clinician data says Karen M. Matragrano accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Karen M. Matragrano?
(631) 979-1625, as listed in official Medicare / NPI Registry data.
What is Karen M. Matragrano's NPI number?
1629356571. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Karen M. Matragrano is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Karen M. Matragrano as a member of this group (CMS data updated 2026-10-02).

  • Gastroenterology Associates of Suffolk PC6 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, New York →

Other nurse practitioners in Smithtown

Clinicians with the same Medicare primary specialty in Smithtown, NY — not a recommendation.

All nurse practitioners in Smithtown →

Clinician information

Medical schoolState University Of New York At Stony Brook, School Of Medicine
Graduation year2011
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1629356571
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians