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CENTER FOR DIGESTIVE DISEASES, P.A.
NPI 1215995923
Internal Medicine - Gastroenterology in Union, NJ

Active since May 02, 2006
695 CHESTNUT ST, UNION, NJ 07083(908) 688-6565(908) 688-3161 Get Directions Write a Review

NPPES record last updated: December 31, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Center For Digestive Diseases, P.a. NPPES

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

CENTER FOR DIGESTIVE DISEASES, P.A. (NPI 1215995923) is a healthcare organization registered as a gastroenterology in Union, New Jersey and active in the NPI registry since May 2006. The organization lists Samiappan Muthusamy, President, as its authorized official.

NPPES Registry Identity

NPI1215995923
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameCENTER FOR DIGESTIVE DISEASES, P.A.
Location Address695 CHESTNUT STUnion, NJ 07083-9302
Mailing Address695 Chestnut StUnion, NJ 07083-9302 · (908) 688-6565 · Fax (908) 688-3161
Phone(908) 688-6565
Fax(908) 688-3161
Organization SubpartNo
Authorized OfficialSamiappan MuthusamyPresident · (908) 688-6565
Enumeration DateMay 2, 2006
Last NPPES UpdateDecember 31, 2007
✔ NPI 1215995923 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
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.
695 CHESTNUT ST, Union, NJ 07083
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Other Identifiers 2

Medicaid3354202NJ
Medicare PIN002360NJ

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)

Center For Digestive Diseases, P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Center For Digestive Diseases, P.A., which bills Medicare for the services they deliver. Of these, 4 practice at this address. They are listed nearest first.

Clinicians, nearest first (6)

Sujala Chirla, MD
Gastroenterology
NPI 1790946663
695 CHESTNUT ST
Union, NJ 07083
(908) 688-6565
✔ PECOS✔ Accepts MedicareSame address
Samiappan Muthusamy, M.D.
Gastroenterology
NPI 1497713184
695 CHESTNUT ST
Union, NJ 07083
(908) 688-6565
✔ PECOSSame address
Dhanasekaran Ramasamy, M.D.
Gastroenterology
NPI 1689875700
695 CHESTNUT ST
Union, NJ 07083
(908) 688-6565
✔ PECOS✔ Accepts MedicareSame address
Geethan Sivananthan
Gastroenterology
NPI 1598907990
695 CHESTNUT ST
Union, NJ 07083
(908) 688-6565
✔ PECOS✔ Accepts MedicareSame address
Aaron Freeman, MSN NPC RNBC
Nurse Practitioner
NPI 1326599184
254 EASTON AVE
New Brunswick, NJ 08901
(732) 745-8600
✔ PECOS✔ Accepts Medicare16 mi
Kiran Rijhwani, M.D.
Pathology
NPI 1457437121
250 OLD HOOK RD
Westwood, NJ 07675
(201) 358-3267
✔ PECOS✔ Accepts Medicare24 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 31D0108851

Center For Digestive Diseases · Union, NJ
Expired · Oct 16, 2026
CLIA Number31D0108851
Laboratory TypePhysician Office
Certificate Effective DateOctober 17, 2024
Certificate Expiration DateOctober 16, 2026
Laboratory DirectorDhanasekaran Ramasamy
Laboratory Phone(908) 688-6565
Laboratory LocationCenter For Digestive Diseases695 Chestnut Street, Union, NJ 07083
CLIA data matches this NPI record on: Address Name 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 Center For Digestive Diseases, P.A.'s NPI number?

The NPI number for Center For Digestive Diseases, P.A. is 1215995923. It was assigned to this organization in the NPPES registry on May 2, 2006.

Where is Center For Digestive Diseases, P.A. located?

Center For Digestive Diseases, P.A. is located at 695 Chestnut St, Union, NJ 07083. The listed phone number is (908) 688-6565.

What is Center For Digestive Diseases, P.A.'s specialty?

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

Is Center For Digestive Diseases, P.A. enrolled in Medicare?

Yes. Center For Digestive Diseases, P.A. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Center For Digestive Diseases, P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 3 Medicare specialties reassign their Medicare billing to Center For Digestive Diseases, P.A.. 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 (4), Nurse Practitioner (1) and Pathology (1). Of these, 4 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 Center For Digestive Diseases, P.A. was last updated on December 31, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.