CONNECTICUT GASTROENTEROLOGY ASSOCIATES PC
NPI 1700917523
Internal Medicine - Gastroenterology in Hartford, CT

Active since March 07, 2007CLIA 07D0959296 · Waiver
1000 ASYLUM AVE, SUITE 3212, HARTFORD, CT 06105(860) 522-1171(860) 493-6524 Get Directions Write a Review

NPPES record last updated: June 18, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Connecticut Gastroenterology Associates Pc NPPES

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

CONNECTICUT GASTROENTEROLOGY ASSOCIATES PC (NPI 1700917523) is a healthcare organization registered as a gastroenterology in Hartford, Connecticut and active in the NPI registry since March 2007. The organization holds a CLIA Waiver certificate valid through April 7, 2027 and lists Michael Butensky, President, as its authorized official.

NPPES Registry Identity

NPI1700917523
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameCONNECTICUT GASTROENTEROLOGY ASSOC PC
Location Address1000 ASYLUM AVE, SUITE 3212Hartford, CT 06105
Mailing Address1000 Asylum Ave, Suite 3212Hartford, CT 06105-1770 · (860) 522-1171 · Fax (860) 493-6524
Fax(860) 493-6524
Organization SubpartNo
Authorized OfficialMichael ButenskyPresident · (860) 522-1171
Enumeration DateMarch 7, 2007
Last NPPES UpdateJune 18, 2018
✔ NPI 1700917523 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.
1000 ASYLUM AVE, Hartford, CT 06105

Other Names 1

Doing Business AsConnecticut Gastroenterology Associates Pc

Other Identifiers 2

Medicaid004065934CT
OtherC00203CT · Medicare Group Number

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

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)

Connecticut Gastroenterology Associates Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

10

Medicare enrollment records show 10 clinicians reassign Medicare billing to Connecticut Gastroenterology Associates PC, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 9 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 2

Gastroenterology6
Nurse Practitioner4

Clinicians, nearest first (10)

Gastroenterology
NPI 1487681136
1000 ASYLUM AVE SUITE 3215
Hartford, CT 06105
(860) 522-1171
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1922035617
1000 ASYLUM AVE SUITE 3212
Hartford, CT 06105
(860) 522-1171
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1447570494
1000 ASYLUM AVE STE 3212
Hartford, CT 06105
(860) 522-1171
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1275653933
1000 ASYLUM AVE SUITE 3212
Hartford, CT 06105
(860) 522-1171
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1710397740
1000 ASYLUM AVE STE 3212
Hartford, CT 06105
(860) 522-1171
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1962438143
150 MANSFIELD AVE
Willimantic, CT 06226
(860) 423-3299
✔ PECOS✔ Accepts Medicare1.1 mi
Nurse Practitioner
NPI 1447925128
893 MAIN ST STE 202
East Hartford, CT 06108
(860) 528-4124
✔ PECOS✔ Accepts Medicare2.9 mi
Nurse Practitioner
NPI 1942619853
515 MIDDLE TPKE W STE 120
Manchester, CT 06040
(860) 533-0008
✔ PECOS7.8 mi
Nurse Practitioner
NPI 1902553076
44 DALE RD STE 204
Avon, CT 06001
(860) 674-8830
✔ PECOS✔ Accepts Medicare9.0 mi
Nurse Practitioner
NPI 1528554094
22 WESTFIELD AVE
Ansonia, CT 06401
(203) 736-9919
✔ PECOS✔ Accepts Medicare36 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 Waiver 07D0959296

Connecticut Gastroenterology Associates, PC · Enfield, CT
Active · expires Apr 7, 2027
CLIA Number07D0959296
Laboratory TypePhysician Office
Certificate Effective DateApril 8, 2025
Certificate Expiration DateApril 7, 2027
Laboratory DirectorJoseph L. Ianello, MD
Laboratory Phone(860) 522-1171
Laboratory LocationConnecticut Gastroenterology Associates, PC113 Elm Street, Suite 301, Enfield, CT 06082
CLIA data matches this NPI record on: Name Phone
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 Connecticut Gastroenterology Assoc PC's NPI number?

The NPI number for Connecticut Gastroenterology Assoc PC is 1700917523. It was assigned to this organization in the NPPES registry on March 7, 2007. The provider is doing business as Connecticut Gastroenterology Associates PC.

Where is Connecticut Gastroenterology Assoc PC located?

Connecticut Gastroenterology Assoc PC is located at 1000 Asylum Ave Suite 3212, Hartford, CT 06105. The listed phone number is (860) 522-1171.

What is Connecticut Gastroenterology Assoc PC's specialty?

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

Is Connecticut Gastroenterology Assoc PC enrolled in Medicare?

Yes. Connecticut Gastroenterology Assoc PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Connecticut Gastroenterology Assoc PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians in 2 Medicare specialties reassign their Medicare billing to Connecticut Gastroenterology Assoc PC. 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 (6) and Nurse Practitioner (4). Of these, 5 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Connecticut Gastroenterology Assoc PC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 07D0959296) is associated with this NPI, valid through April 7, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Connecticut Gastroenterology Assoc PC accept?

Health plans from Anthem Blue Cross and Blue Shield list Connecticut Gastroenterology Assoc PC 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 Connecticut Gastroenterology Assoc PC was last updated on June 18, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.