NORTH SHORE - LIJ MEDICAL GROUP SOUTH SHORE MEDICAL ASSOCIATES
NPI 1568898138
Internal Medicine in Lynbrook, NY

Q: What is North Shore - Lij Internal Medicine At Lynbrook PC's specialty?

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

Active since September 16, 2013

158 HEMPSTEAD AVE, LYNBROOK, NY 11563(516) 593-3541(516) 599-8307 Get Directions Write a Review

NPPES record last updated: July 25, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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

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About North Shore - Lij Medical Group South Shore Medical Associates NPPES

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

NORTH SHORE - LIJ MEDICAL GROUP SOUTH SHORE MEDICAL ASSOCIATES (NPI 1568898138) is a healthcare organization registered as an internal medicine in Lynbrook, New York and active in the NPI registry since September 2013. The organization lists Michele Cusak, Cfo, as its authorized official.

NPPES Registry Identity

NPI1568898138

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameNORTH SHORE - LIJ INTERNAL MEDICINE AT LYNBROOK PC

Location Address158 HEMPSTEAD AVELynbrook, NY 11563-1605

Mailing Address972 Brush Hollow Rd, Finance 5th FloorWestbury, NY 11590-1740

Phone(516) 593-3541

Fax(516) 599-8307

Organization SubpartNo

Authorized OfficialMichele CusakCfo · (516) 562-8182

Enumeration DateSeptember 16, 2013

Last NPPES UpdateJuly 25, 20222 updates tracked since enumeration

NPPES CertifiedJuly 25, 2022

✔ NPI 1568898138 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ 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 · GastroenterologyTaxonomy 207RG0100X

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X

158 HEMPSTEAD AVE, Lynbrook, NY 11563

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Other Names 1

Doing Business AsNorth Shore - Lij Medical Group South Shore Medical Associates

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 - Lij Medical Group South Shore Medical Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 7 clinicians reassign Medicare billing to North Shore - Lij Medical Group South Shore Medical Associates, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.

Clinicians, nearest first (7)

Nathaniel Epstein, MD

Cardiovascular Disease (Cardiology)

NPI 1043393010

158 HEMPSTEAD AVENUE
Lynbrook, NY 11563

(516) 593-3541

✔ PECOS✔ Accepts MedicareSame address

Meyer Blumstein, MD

Gastroenterology

NPI 1417030479

158 HEMPSTEAD AVE
Lynbrook, NY 11563

(516) 593-3541

✔ PECOS✔ Accepts MedicareSame address

Henry Zupnick, MD

Internal Medicine

NPI 1417009895

158 HEMPSTEAD AVE
Lynbrook, NY 11563

(516) 593-3541

✔ PECOS✔ Accepts MedicareSame address

Jay Weinstein, MD

Internal Medicine

NPI 1003902065

170 W 12TH ST MEDICINE/GENERAL MEDICINE
New York, NY 10011

(212) 356-4474

✔ PECOS✔ Accepts Medicare17 mi

Barbara Alpert, MD

Internal Medicine

NPI 1194775536

90 S BEDFORD RD CARE MOUNT MEDICAL PC
Mount Kisco, NY 10549

(914) 241-1050

✔ PECOS✔ Accepts Medicare37 mi

Jeffrey Gross, MD

Internal Medicine

NPI 1710933940

90 S BEDFORD RD CARE MOUNT MEDICAL PC
Mount Kisco, NY 10549

(914) 241-1050

✔ PECOS✔ Accepts Medicare37 mi

Steven Margulis, MD

Internal Medicine

NPI 1417903295

90 SOUTH BEDFORD ROAD CARE MOUNT MEDICAL, PC
Mount Kisco, NY 10549

(914) 241-1050

✔ PECOS✔ Accepts Medicare37 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 North Shore - Lij Internal Medicine At Lynbrook PC's NPI number?

The NPI number for North Shore - Lij Internal Medicine At Lynbrook PC is 1568898138. It was assigned to this organization in the NPPES registry on September 16, 2013. The provider is doing business as North Shore - Lij Medical Group South Shore Medical Associates.

Where is North Shore - Lij Internal Medicine At Lynbrook PC located?

North Shore - Lij Internal Medicine At Lynbrook PC is located at 158 Hempstead Ave, Lynbrook, NY 11563. The listed phone number is (516) 593-3541.

What is North Shore - Lij Internal Medicine At Lynbrook PC's specialty?

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

Is North Shore - Lij Internal Medicine At Lynbrook PC enrolled in Medicare?

Yes. North Shore - Lij Internal Medicine At Lynbrook PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through North Shore - Lij Internal Medicine At Lynbrook PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 3 Medicare specialties reassign their Medicare billing to North Shore - Lij Internal Medicine At Lynbrook PC. 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 Internal Medicine (5), Cardiovascular Disease (Cardiology) (1) and Gastroenterology (1). Of these, 3 practice at this address. 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 - Lij Internal Medicine At Lynbrook PC was last updated on July 25, 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.