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MEDICAL SERVICES OF SETAUKET, P.C.
NPI 1861026106
Internal Medicine - Gastroenterology in East Setauket, NY

Active since February 25, 2020
3400 NESCONSET HWY STE 101, EAST SETAUKET, NY 11733(631) 751-8700(631) 751-5971 Get Directions Write a Review

NPPES record last updated: July 8, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 8, 2022, Feb 25, 2020 (2 updates tracked since 2020).

About Medical Services Of Setauket, P.c. NPPES

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

MEDICAL SERVICES OF SETAUKET, P.C. (NPI 1861026106) is a healthcare organization registered as a gastroenterology in East Setauket, New York and active in the NPI registry since February 2020. The organization maintains 5 additional practice locations and lists Michele L Cusack, Senior Vice President & Cfo, as its authorized official.

NPPES Registry Identity

NPI1861026106
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameMEDICAL SERVICES OF SETAUKET, P.C.
Location Address3400 NESCONSET HWY STE 101East Setauket, NY 11733-3327
Mailing Address3400 Nesconset Hwy Ste 101East Setauket, NY 11733-3327 · (631) 751-8700 · Fax (631) 751-5971
Phone(631) 751-8700
Fax(631) 751-5971
Organization SubpartNo
Authorized OfficialMichele L CusackSenior Vice President & Cfo · (516) 321-6058
Enumeration DateFebruary 25, 2020
Last NPPES UpdateJuly 8, 20222 updates tracked since enumeration
NPPES CertifiedJuly 8, 2022
✔ NPI 1861026106 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedNurse Practitioner · Acute CareTaxonomy 363LA2100X
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X
3400 NESCONSET HWY STE 101, East Setauket, NY 11733
Open in Google Maps ↗

Secondary Practice Locations 5

Location 1101 Nicolls RdStony Brook, NY 11794-0001 · Phone (631) 689-8333 · Fax (631) 751-5971
Location 26144 Route 25A Ste D21Wading River, NY 11792-2018 · Phone (631) 751-8700 · Fax (631) 751-5971
Location 31500 Route 112 Bldg 5Port Jefferson Station, NY 11776-8055 · Phone (631) 828-3400 · Fax (631) 751-5971
Location 475 N Country RdPort Jefferson, NY 11777-2119 · Phone (631) 473-1320 · Fax (631) 751-5971
Location 5200 Belle Terre RdPort Jefferson, NY 11777-1928 · Phone (631) 474-6000 · Fax (631) 751-5971

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Medical Services Of Setauket, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

17

Medicare enrollment records show 17 clinicians reassign Medicare billing to Medical Services Of Setauket, P.C., which bills Medicare for the services they deliver. Of these, 10 practice at this address and 15 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 2

Gastroenterology11
Nurse Practitioner6

Clinicians, nearest first (17)

Alyssa Allen, FNP-BC
Nurse Practitioner
NPI 1205554375
3400 NESCONSET HWY STE 101
Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts MedicareSame address
Robert Baranowski, MD
Gastroenterology
NPI 1205892205
3400 NESCONSET HWY SUITE 101
East Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts MedicareSame address
Gary Bernstein, MD
Gastroenterology
NPI 1407813579
3400 NESCONSET HWY SUITE 101
East Setauket, NY 11733
(631) 751-8711
✔ PECOS✔ Accepts MedicareSame address
Neva Castro
Gastroenterology
NPI 1386025385
3400 NESCONSET HWY STE 101
East Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts MedicareSame address
William Cohn, MD
Gastroenterology
NPI 1861459208
3400 NESCONSET HWY SUITE 101
East Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts MedicareSame address
Eugene Coman, MD
Gastroenterology
NPI 1497713887
3400 NESCONSET HWY SUITE 101
East Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts MedicareSame address
Emily Glazer, MD
Gastroenterology
NPI 1881765014
3400 NESCONSET HWY STE 101
East Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts MedicareSame address
Howard Keschner, MD
Gastroenterology
NPI 1871551879
3400 NESCONSET HWY SUITE 101
East Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts MedicareSame address
Eugene Licht
Gastroenterology
NPI 1740423755
3400 NESCONSET HWY STE 101
East Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts MedicareSame address
Seth Persky, MD
Gastroenterology
NPI 1508823600
3400 NESCONSET HWY SUITE 101
East Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts MedicareSame address
Chelsea Bihn, NP
Nurse Practitioner
NPI 1184410672
8 TECHNOLOGY DR
East Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts Medicare0.1 mi
Margaret Cariola, NP
Nurse Practitioner
NPI 1003944943
3400 NESCONSET HWY STE 101
East Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts Medicare0.2 mi
Kristina Demarco, ANPC
Nurse Practitioner
NPI 1407853526
235 N BELLE MEAD RD
E Setauket, NY 11733
(631) 751-3000
✔ PECOS✔ Accepts Medicare0.2 mi
Jillian Fratepietro, RN, ANP-C
Nurse Practitioner
NPI 1427204536
24 RESEARCH WAY SUITE 500
East Setauket, NY 11733
(631) 444-6270
✔ PECOS✔ Accepts Medicare0.6 mi
Derek Gindi, MD
Gastroenterology
NPI 1376034447
8 TECHNOLOGY DR STE 101
Setauket, NY 11733
(631) 751-8700
✔ PECOS✔ Accepts Medicare3.2 mi
Jenna Sonnenberg
Nurse Practitioner
NPI 1447775747
45 ROUTE 25A STE C
Shoreham, NY 11786
(631) 744-3303
✔ PECOS✔ Accepts Medicare10 mi
H Cohn, M.D.
Gastroenterology
NPI 1437470283
725 ALBANY ST SHAPIRO 5, SUITE B
Boston, MA 02118
(617) 414-5951
✔ PECOS✔ Accepts Medicare144 mi

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

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 Medical Services Of Setauket, P.C.'s NPI number?

The NPI number for Medical Services Of Setauket, P.C. is 1861026106. It was assigned to this organization in the NPPES registry on February 25, 2020.

Where is Medical Services Of Setauket, P.C. located?

Medical Services Of Setauket, P.C. is located at 3400 Nesconset Hwy Ste 101, East Setauket, NY 11733. The listed phone number is (631) 751-8700.

What is Medical Services Of Setauket, P.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Medical Services Of Setauket, P.C. enrolled in Medicare?

Yes. Medical Services Of Setauket, P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Medical Services Of Setauket, P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 17 clinicians in 2 Medicare specialties reassign their Medicare billing to Medical Services Of Setauket, P.C.. A 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 the clinician's services. The largest specialties are Gastroenterology (11) and Nurse Practitioner (6). Of these, 10 practice at this address and 15 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Medical Services Of Setauket, P.C. was last updated on July 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.