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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: July 21, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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 Gammal A Hassanien, Practice Owner, 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
Phone(973) 523-1800
Fax(973) 689-3081
Organization SubpartNo
Authorized OfficialGammal A HassanienPractice Owner · (973) 523-4000
Enumeration DateAugust 2, 2011
Last NPPES UpdateJuly 21, 2025
NPPES CertifiedJuly 16, 2025
✔ 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
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Secondary Practice Locations 6

Location 180 Passaic AvePassaic, NJ 07055-4860 · Phone (973) 779-5554 · Fax (976) 689-3081
Location 234 Mill StPaterson, NJ 07501-1825 · Phone (973) 705-7700 · Fax (973) 689-3081
Location 3335 Passaic StPassaic, NJ 07055-5818 · Phone (973) 779-5554 · Fax (973) 689-3081
Location 4295 BroadwayPaterson, NJ 07501-2000 · Phone (973) 705-7788 · Fax (973) 689-3081
Location 591 Main StPaterson, NJ 07505-1026 · Phone (973) 523-4000 · Fax (973) 689-3081
Location 6355 21st AvePaterson, NJ 07501-3738 · Phone (973) 810-1200 · 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

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Baylor Scott and White Health Plan and more.Insurance ›

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.

Other Providers at the Same Location NPPES 14

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LIDIA L VIDAL FNP
Nurse Practitioner (Family)
606 BROADWAY
PATERSON, NJ 07514
Passaic County (973) 523-1800
DORCA CHAVEZ NOVAS
Nurse Practitioner
606 BROADWAY
PATERSON, NJ 07514
Passaic County (973) 523-1800
STEPHANIE WANDA CHECO NOLASCO
Nurse Practitioner
606 BROADWAY
PATERSON, NJ 07514
Passaic County (973) 523-1800
PASSAIC COUNTY INTEGRATED
Specialist/Technologist Cardiovascular
606 BROADWAY
PATERSON, NJ 07514
Passaic County (973) 278-8818
LUZ B ANAYA
Nurse Practitioner (Adult Health)
606 BROADWAY
PATERSON, NJ 07514
Passaic County (973) 523-1800
PASSAIC COUNTY
Radiology (Diagnostic Radiology)
606 BROADWAY
PATERSON, NJ 07514
Passaic County (973) 248-8818
MOHAMED DAHHAN M.D.
Internal Medicine
606 BROADWAY
PATERSON, NJ 07514
Passaic County (973) 523-1800
DR. GAMMAL A HASSANIEN DO
Internal Medicine
606 BROADWAY
PATERSON, NJ 07514
Passaic County (973) 523-4000

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.

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 Ambetter Health, Ambetter Health of Delaware, Baylor Scott and White Health Plan, Blue Cross Blue Shield of North Dakota and Blue Cross Blue Shield of Wyoming and 4 other insurers 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 July 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.