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GASTROCARE LLC
NPI 1497873244
Internal Medicine - Gastroenterology in Mountainside, NJ

Active since March 27, 2007CLIA 31D1033744 · Certificate of Compliance
200 SHEFFIELD STREET, SUITE 213, MOUNTAINSIDE, NJ 07092(908) 522-1313(908) 522-1302 Get Directions Write a Review

NPPES record last updated: November 24, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Gastrocare Llc NPPES

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

GASTROCARE LLC (NPI 1497873244) is a healthcare organization registered as a gastroenterology in Mountainside, New Jersey and active in the NPI registry since March 2007. The organization holds a CLIA Certificate of Compliance certificate valid through March 29, 2028 and lists Amber Manzoor Khan, Physician, as its authorized official.

NPPES Registry Identity

NPI1497873244
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameGASTROCARE LLC
Location Address200 SHEFFIELD STREET, SUITE 213Mountainside, NJ 07092
Mailing Address200 Sheffield Street, Suite 213Mountainside, NJ 07092 · (908) 522-1313 · Fax (908) 522-1302
Phone(908) 522-1313
Fax(908) 522-1302
Organization SubpartNo
Authorized OfficialAmber Manzoor KhanPhysician · (908) 522-1313
Enumeration DateMarch 27, 2007
Last NPPES UpdateNovember 24, 2025
NPPES CertifiedNovember 24, 2025
✔ NPI 1497873244 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in NJ · MA72090
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
200 SHEFFIELD STREET, Mountainside, NJ 07092
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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)

Gastrocare Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Gastrocare LLC, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (3)

Michael Gistrak, MD
Pathology
NPI 1396793972
865 STONE ST
Rahway, NJ 07065
(732) 499-6139
✔ PECOS✔ Accepts Medicare5.5 mi
Scott Merlin, M.D.
Pathology
NPI 1124244009
865 STONE ST DEPARTMENT OF PATHOLOGY
Rahway, NJ 07065
(732) 499-6139
✔ PECOS✔ Accepts Medicare5.5 mi
Amber Khan, M.D.
Gastroenterology
NPI 1508958471
1500 MOUNTAIN TOP RD
Bridgewater, NJ 08807
(908) 522-1313
✔ PECOS✔ Accepts Medicare15 mi

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 31D1033744

Gastro Care LLC · Mountainside, NJ
Active · expires Mar 29, 2028
CLIA Number31D1033744
Laboratory TypePhysician Office
Certificate Effective DateMarch 30, 2026
Certificate Expiration DateMarch 29, 2028
Laboratory DirectorScott Merlin
Laboratory Phone(908) 522-1313
Laboratory LocationGastro Care LLC200 Sheffield St Suite 213, Mountainside, NJ 07092
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 Gastrocare LLC's NPI number?

The NPI number for Gastrocare LLC is 1497873244. It was assigned to this organization in the NPPES registry on March 27, 2007.

Where is Gastrocare LLC located?

Gastrocare LLC is located at 200 Sheffield Street Suite 213, Mountainside, NJ 07092. The listed phone number is (908) 522-1313.

What is Gastrocare LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Gastrocare LLC enrolled in Medicare?

Yes. Gastrocare LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gastrocare LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Gastrocare LLC, in Gastroenterology and Pathology. 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. Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Gastrocare LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 31D1033744) is associated with this NPI, valid through March 29, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Gastrocare LLC was last updated on November 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.