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NORTH SHORE MEDICAL GROUP
NPI 1144431701
Internal Medicine in Commack, NY

Active since May 25, 2007
66 COMMACK RD, COMMACK, NY 11725(631) 881-7600(631) 881-7697 Get Directions Write a Review

NPPES record last updated: October 6, 2015. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About North Shore Medical Group NPPES

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

NORTH SHORE MEDICAL GROUP (NPI 1144431701) is a healthcare organization registered as an internal medicine in Commack, New York and active in the NPI registry since May 2007. The organization lists Janet Street, Practice Administrator, as its authorized official.

NPPES Registry Identity

NPI1144431701
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameNORTH SHORE MEDICAL GROUP OF THE MOUNT SINAI SCHOOL OF MEDICINE
Location Address66 COMMACK RDCommack, NY 11725-3405
Mailing Address66 Commack RdCommack, NY 11725-3405 · (631) 881-7600 · Fax (631) 881-7697
Phone(631) 881-7600
Fax(631) 881-7697
Organization SubpartNo
Authorized OfficialJanet StreetPractice Administrator · (631) 351-3703
Enumeration DateMay 25, 2007
Last NPPES UpdateOctober 6, 2015
✔ NPI 1144431701 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 10

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X
Also ListedInternal Medicine · Endocrinology, Diabetes & MetabolismTaxonomy 207RE0101X
Also ListedInternal Medicine · GastroenterologyTaxonomy 207RG0100X
Also ListedInternal Medicine · NephrologyTaxonomy 207RN0300X
Also ListedObstetrics & Gynecology · GynecologyTaxonomy 207VG0400X
Also ListedObstetrics & Gynecology · ObstetricsTaxonomy 207VX0000X
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X
Also ListedSurgeryTaxonomy 208600000X
Also ListedPodiatristTaxonomy 213E00000X
66 COMMACK RD, Commack, NY 11725
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Other Names 1

Doing Business AsNorth Shore Medical Group

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)

North Shore Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

571

Medicare enrollment records show 571 clinicians reassign Medicare billing to North Shore Medical Group, which bills Medicare for the services they deliver. Of these, 89 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 43

Diagnostic Radiology143
Internal Medicine71
Cardiovascular Disease (Cardiology)38
Family Practice34
Nurse Practitioner32
Obstetrics/Gynecology30
Gastroenterology27
General Surgery19
35 other specialties177

Nearest to this location (20)

See all 571
Brenda Janotha
Nurse Practitioner
NPI 1770666117
994 W JERICHO TPKE SUITE 201
Smithtown, NY 11787
(631) 864-4499
✔ PECOS✔ Accepts Medicare1.6 mi
Jahan Aghalar, M.D.
Medical Oncology
NPI 1346474517
650 COMMACK RD
Commack, NY 11725
(631) 623-4000
✔ PECOS✔ Accepts Medicare2.2 mi
Stella Chin, MD
Neurology
NPI 1578141784
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 444-2599
✔ PECOS3.5 mi
Mark Goldman, MD
Cardiovascular Disease (Cardiology)
NPI 1053512285
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.5 mi
Trevor Prashad, DO
Family Practice
NPI 1740740513
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.5 mi
Semyon Gurgov, M.D.
Urology
NPI 1023364643
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.8 mi
Mutiat Akinsemoyin, M.D
Pediatric Medicine
NPI 1255783387
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 659-4000
✔ PECOS✔ Accepts Medicare3.9 mi
Eric Arguelles, MD
Cardiovascular Disease (Cardiology)
NPI 1104138627
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.9 mi
Neha Arora, D.O.
Endocrinology
NPI 1275953572
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.9 mi
Eric Ballecer
Gastroenterology
NPI 1760833602
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.9 mi
Mathew Birnbaum, MD
Dermatology
NPI 1306334388
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.9 mi
Tyler Cappello, MD
Internal Medicine
NPI 1538746896
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.9 mi
Cecilia Cassidy, APRN, CDE
Nurse Practitioner
NPI 1124410634
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS3.9 mi
Lisa Fleece, CNM
Certified Nurse Midwife (CNM)
NPI 1649757642
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.9 mi
Katharine Frost, MD
Obstetrics/Gynecology
NPI 1548898869
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.9 mi
Sunil George, M.D.
Nephrology
NPI 1194929364
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.9 mi
Tianyuan Liu, M.D.
Diagnostic Radiology
NPI 1669904322
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.9 mi
Marvi Rizwan, MD
Allergy/Immunology
NPI 1821527995
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.9 mi
Vaish Sekar, M.D.
Hospitalist
NPI 1285028571
5 CUBA HILL RD
Greenlawn, NY 11740
(631) 628-5000
✔ PECOS✔ Accepts Medicare3.9 mi
Evan Kessler, MD
Vascular Surgery
NPI 1316366404
48 ROUTE 25A STE 303
Smithtown, NY 11787
(631) 862-3635
✔ PECOS✔ Accepts Medicare4.1 mi
See all 571 clinicians

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 North Shore Medical Group Of The Mount Sinai School Of Medicine's NPI number?

The NPI number for North Shore Medical Group Of The Mount Sinai School Of Medicine is 1144431701. It was assigned to this organization in the NPPES registry on May 25, 2007. The provider is doing business as North Shore Medical Group.

Where is North Shore Medical Group Of The Mount Sinai School Of Medicine located?

North Shore Medical Group Of The Mount Sinai School Of Medicine is located at 66 Commack Rd, Commack, NY 11725. The listed phone number is (631) 881-7600.

What is North Shore Medical Group Of The Mount Sinai School Of Medicine's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is North Shore Medical Group Of The Mount Sinai School Of Medicine enrolled in Medicare?

Yes. North Shore Medical Group Of The Mount Sinai School Of Medicine is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through North Shore Medical Group Of The Mount Sinai School Of Medicine?

According to the CMS Revalidation Reassignment List (October 2026 release), 571 clinicians in 43 Medicare specialties reassign their Medicare billing to North Shore Medical Group Of The Mount Sinai School Of Medicine. 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 Diagnostic Radiology (143), Internal Medicine (71) and Cardiovascular Disease (Cardiology) (38). Of these, 89 practice 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 North Shore Medical Group Of The Mount Sinai School Of Medicine was last updated on October 6, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.