ESSEX GASTROENTEROLOGY ASSOCIATES LLC
NPI 1881665305
Specialist in Belleville, NJ
About Essex Gastroenterology Associates Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ESSEX GASTROENTEROLOGY ASSOCIATES LLC (NPI 1881665305) is a healthcare organization registered as a specialist in Belleville, New Jersey and active in the NPI registry since February 2006. The organization holds a CLIA Certificate of Compliance certificate valid through February 22, 2027 and lists Betsy Guerrero, Practice Administrator, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Essex Gastroenterology Associates Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
6Medicare enrollment records show 6 clinicians reassign Medicare billing to Essex Gastroenterology Associates LLC, which bills Medicare for the services they deliver. Of these, 4 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (6)
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
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 Compliance 31D1042647
Essex Gastroenterology Associates · Belleville, NJFrequently 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 Essex Gastroenterology Associates LLC's NPI number?
The NPI number for Essex Gastroenterology Associates LLC is 1881665305. It was assigned to this organization in the NPPES registry on February 1, 2006.
Where is Essex Gastroenterology Associates LLC located?
Essex Gastroenterology Associates LLC is located at 5 Franklin Ave Suite 109, Belleville, NJ 07109. The listed phone number is (973) 759-7240.
What is Essex Gastroenterology Associates LLC's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Essex Gastroenterology Associates LLC enrolled in Medicare?
Yes. Essex Gastroenterology Associates LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Essex Gastroenterology Associates LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 2 Medicare specialties reassign their Medicare billing to Essex Gastroenterology 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 Gastroenterology (5) and Pathology (1). Of these, 4 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Essex Gastroenterology Associates LLC hold a CLIA laboratory certificate?
Yes. A Certificate of Compliance (number 31D1042647) is associated with this NPI, valid through February 22, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Essex Gastroenterology Associates LLC accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Essex Gastroenterology 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 Essex Gastroenterology Associates LLC was last updated on September 20, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Essex Gastroenterology Associates Llc · NPI 1881665305
Specialist organization in Belleville, New Jersey. Organization record, active in the CMS NPPES registry since February 1, 2006.
## Identity
- **NPI:** 1881665305 (Entity type: Organization)
- **Enumerated:** February 1, 2006
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Betsy Guerrero, PRACTICE ADMINISTRATOR
## Practice location
- **Address:** 5 FRANKLIN AVE, SUITE 109, Belleville, NJ 07109-3532
- **Phone:** (973) 759-7240 · **Fax:** (973) 759-7243
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 6 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Gastroenterology (5), Pathology (1); 4 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 20, 2016
- **Other identifiers:** Medicare ID-Type Unspecified 092902 (NJ); Medicaid 0070823 (NJ)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1881665305) · Data from the CMS NPPES public registry.