CONNECTICUT GI PLLC
NPI 1023124625
Internal Medicine - Gastroenterology in Hartford, CT
About Connecticut Gi Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CONNECTICUT GI PLLC (NPI 1023124625), doing business as Gi & Internal Medicine Assoc And Connecticut Gastroenterology Medical, is a healthcare organization registered as a gastroenterology in Hartford, Connecticut and active in the NPI registry since August 2006. The organization lists Jeffrey L Nestler, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 6
Other Names 1
Other Identifiers 1
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)
Connecticut Gi Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
415Medicare enrollment records show 415 clinicians reassign Medicare billing to Connecticut Gi PLLC, which bills Medicare for the services they deliver. Of these, 14 practice at this address and 148 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 8
Nearest to this location (20)
See all 415Hartford, CT 06102
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Gi PLLC's NPI number?
The NPI number for Connecticut Gi PLLC is 1023124625. It was assigned to this organization in the NPPES registry on August 23, 2006. The provider was formerly known as GI & Internal Medicine Assoc And Connecticut Gastroenterology Medical.
Where is Connecticut Gi PLLC located?
Connecticut Gi PLLC is located at 85 Seymour St 1000, Hartford, CT 06106. The listed phone number is (860) 246-2571.
What is Connecticut Gi PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Connecticut Gi PLLC enrolled in Medicare?
Yes. Connecticut Gi PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Connecticut Gi PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 415 clinicians in 8 Medicare specialties reassign their Medicare billing to Connecticut Gi PLLC. 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 Certified Registered Nurse Anesthetist (CRNA) (140), Gastroenterology (106) and Anesthesiology (83). Of these, 14 practice at this address and 148 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Connecticut Gi PLLC accept?
Health plans from Anthem Blue Cross and Blue Shield list Connecticut Gi PLLC 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 Gi PLLC was last updated on November 25, 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.
# Connecticut Gi Pllc · NPI 1023124625
Gastroenterology organization in Hartford, Connecticut. Organization record, active in the CMS NPPES registry since August 23, 2006.
## Identity
- **NPI:** 1023124625 (Entity type: Organization)
- **Enumerated:** August 23, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Also known as:** GI & Internal Medicine Assoc And Connecticut Gastroenterology Medical (Former Legal Business Name)
- **Organization subpart:** No
- **Authorized official:** Jeffrey Nestler, PRESIDENT
## Practice location
- **Address:** 85 SEYMOUR ST, 1000, Hartford, CT 06106-5501
- **Phone:** (860) 246-2571 · **Fax:** (860) 246-3691
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 415 clinicians in 8 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Certified Registered Nurse Anesthetist (CRNA) (140), Gastroenterology (106), Anesthesiology (83); 14 practice at this address and 148 within 10 miles; [full list](https://npiprofile.com/npi/1023124625/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 25, 2025
- **Other identifiers:** Medicaid P004137677 (CT)
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Source: [NPI Profile](https://npiprofile.com/npi/1023124625) · Data from the CMS NPPES public registry.