G&S MEDICAL ASSOCIATES LLC
NPI 1982982336
Internal Medicine in Paterson, NJ

Active since August 02, 2011CLIA Certified · 9 labs
606 BROADWAY, PATERSON, NJ 07514(973) 523-1800(973) 689-3081 Get Directions Write a Review

NPPES record last updated: August 20, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 20, 2026, Dec 8, 2023 (2 updates tracked since 2023).

About G&s Medical Associates Llc NPPES

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

G&S MEDICAL ASSOCIATES LLC (NPI 1982982336) is a healthcare organization registered as an internal medicine in Paterson, New Jersey and active in the NPI registry since August 2011. The organization holds 9 active CLIA laboratory certificates, maintains 6 additional practice locations, and lists Samah Ismail, Founder, as its authorized official.

NPPES Registry Identity

NPI1982982336
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameG&S MEDICAL ASSOCIATES LLC
Location Address606 BROADWAYPaterson, NJ 07514-1916
Mailing Address606 BroadwayPaterson, NJ 07514-1916 · (973) 679-0393 · Fax (973) 689-3081
Fax(973) 689-3081
Organization SubpartNo
Authorized OfficialSamah IsmailFounder · (973) 679-0393
Enumeration DateAugust 2, 2011
Last NPPES UpdateAugust 20, 20262 updates tracked since enumeration
NPPES CertifiedAugust 20, 2026
✔ NPI 1982982336 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 7

★ 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 ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X
Also ListedGeneral PracticeTaxonomy 208D00000X
Also ListedPodiatristTaxonomy 213E00000X
Also ListedPhysician AssistantTaxonomy 363A00000X
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X
Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X
606 BROADWAY, Paterson, NJ 07514

Secondary Practice Locations 6

Location 1355 21st AvePaterson, NJ 07501-3738 · Phone (973) 810-1200 · Fax (973) 689-3081
Location 2295 BroadwayPaterson, NJ 07501-2000 · Phone (973) 705-7788 · Fax (973) 689-3081
Location 380 Passaic AvePassaic, NJ 07055-4860 · Phone (973) 779-5554 · Fax (976) 689-3081
Location 434 Mill StPaterson, NJ 07501-1825 · Phone (973) 705-7700 · Fax (973) 689-3081
Location 5335 Passaic StPassaic, NJ 07055-5818 · Phone (973) 779-5554 · Fax (973) 689-3081
Location 691 Main StPaterson, NJ 07505-1026 · Phone (973) 523-4000 · Fax (973) 689-3081

Other Identifiers 1

Medicaid0427268NJ

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

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

G&s Medical Associates Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by March 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateNew JerseyEnrollment IDO20120912000744DME · Physician - General PracticeDue dateMarch 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

39

Medicare enrollment records show 39 clinicians reassign Medicare billing to G & s Medical Associates LLC, which bills Medicare for the services they deliver. Of these, 6 practice at this address and 23 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 7

Nurse Practitioner30
Internal Medicine3
Family Practice2
General Practice1
Neurology1
Podiatry1
Psychiatry1

Nearest to this location (20)

See all 39
Nurse Practitioner
NPI 1366209785
606 BROADWAY
Paterson, NJ 07514
(973) 523-1800
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1124828777
606 BROADWAY
Paterson, NJ 07514
(973) 523-1800
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1144704693
606 BROADWAY
Paterson, NJ 07514
(973) 523-1800
✔ PECOS✔ Accepts MedicareSame address
General Practice
NPI 1568673135
606 BROADWAY
Paterson, NJ 07514
(973) 523-1800
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1528262961
606 BROADWAY
Paterson, NJ 07514
(973) 523-4000
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1093565764
606 BROADWAY
Paterson, NJ 07514
(973) 523-1800
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1326815424
505 15TH AVE
Paterson, NJ 07504
(978) 609-4511
✔ PECOS0.4 mi
Nurse Practitioner
NPI 1306356365
414 BROADWAY
Paterson, NJ 07501
(973) 742-1761
✔ PECOS✔ Accepts Medicare0.5 mi
Nurse Practitioner
NPI 1912335191
318 21ST AVE STE 103
Paterson, NJ 07501
(201) 233-2999
✔ PECOS✔ Accepts Medicare1.0 mi
Nurse Practitioner
NPI 1134947781
91 MAIN ST
Paterson, NJ 07505
(973) 523-1800
✔ PECOS✔ Accepts Medicare1.3 mi
Family Practice
NPI 1831452986
91 MAIN ST
Paterson, NJ 07505
(973) 523-4000
✔ PECOS✔ Accepts Medicare1.3 mi
Nurse Practitioner
NPI 1497432587
628 MAIN ST
Paterson, NJ 07503
(973) 200-2430
✔ PECOS✔ Accepts Medicare1.5 mi
Nurse Practitioner
NPI 1063193944
991 MAIN ST
Paterson, NJ 07503
(201) 234-7527
✔ PECOS1.8 mi
Nurse Practitioner
NPI 1992340111
24-12 FAIR LAWN AVE
Fair Lawn, NJ 07410
(201) 797-7500
✔ PECOS2.1 mi
Nurse Practitioner
NPI 1922744895
234 HAMBURG TPKE STE 203
Wayne, NJ 07470
(973) 569-6118
✔ PECOS✔ Accepts Medicare3.6 mi
Nurse Practitioner
NPI 1417611682
335 PASSAIC ST
Passaic, NJ 07055
(973) 358-5500
✔ PECOS✔ Accepts Medicare4.2 mi
Nurse Practitioner
NPI 1568900405
335 PASSAIC ST
Passaic, NJ 07055
(973) 779-5554
✔ PECOS✔ Accepts Medicare4.2 mi
Nurse Practitioner
NPI 1174108070
394 BROADWAY STE 100
Passaic, NJ 07055
(973) 572-1035
✔ PECOS✔ Accepts Medicare4.5 mi
Nurse Practitioner
NPI 1588059711
401 HOWE AVE APT A9
Passaic, NJ 07055
(973) 473-7200
✔ PECOS✔ Accepts Medicare4.5 mi
Nurse Practitioner
NPI 1700501095
30 PROSPECT AVE
Hackensack, NJ 07601
(551) 996-2000
✔ PECOS✔ Accepts Medicare5.4 mi
See all 39 clinicians

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

CLIA Laboratory Certificates CMS CLIA 9

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 31D2218401

G&s Medical Associates LLC · Passaic, NJ
Active · expires Mar 28, 2027
CLIA Number31D2218401
Laboratory TypePhysician Office
Certificate Effective DateMarch 29, 2025
Certificate Expiration DateMarch 28, 2027
Laboratory DirectorGevorg Martirosyan
Laboratory Phone(973) 523-4000
Laboratory LocationG&s Medical Associates LLC80 Passaic Ave, Passaic, NJ 07055
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 31D2218404

G&s Medical Associates LLC · Passaic, NJ
Active · expires Mar 28, 2027
CLIA Number31D2218404
Laboratory TypePhysician Office
Certificate Effective DateMarch 29, 2025
Certificate Expiration DateMarch 28, 2027
Laboratory DirectorGevorg Martirosyan
Laboratory Phone(973) 523-4000
Laboratory LocationG&s Medical Associates LLC335 Passaic Street, Passaic, NJ 07055
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 31D2218406

G&s Medical Associates LLC · Paterson, NJ
Active · expires Mar 28, 2027
CLIA Number31D2218406
Laboratory TypePhysician Office
Certificate Effective DateMarch 29, 2025
Certificate Expiration DateMarch 28, 2027
Laboratory DirectorGevorg Martirosyan
Laboratory Phone(973) 523-4000
Laboratory LocationG&s Medical Associates LLC91 Main St, Paterson, NJ 07505
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 31D0940343

G&s Medical Associates LLC · Paterson, NJ
Active · expires Mar 14, 2027
CLIA Number31D0940343
Laboratory TypePhysician Office
Certificate Effective DateMarch 15, 2025
Certificate Expiration DateMarch 14, 2027
Laboratory DirectorGevorg H. Martirosyan
Laboratory Phone(973) 523-4000
Laboratory LocationG&s Medical Associates LLC355 21st Avenue, Paterson, NJ 07501
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Accreditation 31D2155350

G&s Medical Associates · Paterson, NJ
Active · expires Mar 3, 2028
CLIA Number31D2155350
Laboratory TypePhysician Office
Certificate Effective DateMarch 4, 2026
Certificate Expiration DateMarch 3, 2028
Laboratory DirectorDr. Gammal Hassanien
Laboratory Phone(908) 240-8142
Laboratory LocationG&s Medical Associates606 Broadway, Paterson, NJ 07514
CLIA data matches this NPI record on: Address Name
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Waiver 31D2292282

G&s Medical Associates LLC · Paterson, NJ
Active · expires Oct 23, 2027
CLIA Number31D2292282
Laboratory TypePhysician Office
Certificate Effective DateOctober 24, 2025
Certificate Expiration DateOctober 23, 2027
Laboratory DirectorGammal A. Hassanien
Laboratory Phone(973) 689-3081
Laboratory LocationG&s Medical Associates LLC295 Broadway, Paterson, NJ 07501
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

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 G&s Medical Associates LLC's NPI number?

The NPI number for G&s Medical Associates LLC is 1982982336. It was assigned to this organization in the NPPES registry on August 2, 2011.

Where is G&s Medical Associates LLC located?

G&s Medical Associates LLC is located at 606 Broadway, Paterson, NJ 07514. The listed phone number is (973) 523-1800.

What is G&s Medical Associates LLC's specialty?

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

Is G&s Medical Associates LLC enrolled in Medicare?

Yes. G&s Medical Associates LLC is registered in the Medicare PECOS enrollment system.

When is G&s Medical Associates LLC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare DME enrollment for this organization (New Jersey, Physician - General Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through G&s Medical Associates LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 39 clinicians in 7 Medicare specialties reassign their Medicare billing to G&s Medical Associates LLC. 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 Nurse Practitioner (30), Internal Medicine (3) and Family Practice (2). Of these, 6 practice at this address and 23 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does G&s Medical Associates LLC hold CLIA laboratory certificates?

Yes. 9 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does G&s Medical Associates LLC accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross Blue Shield of North Dakota, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list G&s Medical Associates LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for G&s Medical Associates LLC was last updated on August 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.