DR. SHEA C GREGG MD
NPI 1255535670
Surgery in Bridgeport, CT
About Dr. Shea C Gregg Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SHEA C GREGG MD (NPI 1255535670) is an individual surgery provider in Bridgeport, Connecticut, licensed in Connecticut (46015) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS and is a graduate of Geisel School Of Medicine At Dartmouth (2002).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Shea C Gregg Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Shea Gregg reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bridgeport, CT 06610
- Reassigned Medicare billing, Connecticut enrollment
- 1,824 clinicians in this Medicare group
New Britain, CT 06052
- Reassigned Medicare billing, Connecticut enrollment
- 745 clinicians in this Medicare group
Hartford, CT 06106
- Reassigned Medicare billing, Connecticut enrollment
- 1,921 clinicians in this Medicare group
Hartford, CT 06102
- Reassigned Medicare billing, Connecticut enrollment
- Also billed through NPI 1770696643 (Connecticut)
- 1,333 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06606 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BRIDGEPORT, CT 06606
BRIDGEPORT, CT 06606
BRIDGEPORT, CT 06606
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 Shea Gregg's NPI number?
The NPI number for Shea Gregg is 1255535670. It was assigned to this individual provider in the NPPES registry on June 11, 2007.
Where is Shea Gregg located?
Shea Gregg practices at 2800 Main St, Bridgeport, CT 06606. The listed phone number is (401) 272-1800.
What is Shea Gregg's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Shea Gregg enrolled in Medicare?
Yes. Shea Gregg is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Shea Gregg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Shea Gregg reassigns Medicare benefits to 4 organizations: Northeast Medical Group, Inc. (Bridgeport, CT), The Hospital Of Central Connecticut At New Britain General And Bradley (New Britain, CT), Hartford Healthcare Medical Group Specialists, PLLC (Hartford, CT) and Hartford Hospital (Hartford, CT). Each 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 Shea Gregg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Shea Gregg accept?
Health plans from Anthem Blue Cross and Blue Shield list Shea Gregg 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 Shea Gregg was last updated on September 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. Shea C Gregg, MD · NPI 1255535670
Surgery physician in Bridgeport, Connecticut. Individual provider, active in the CMS NPPES registry since June 11, 2007.
## Identity
- **NPI:** 1255535670 (Entity type: Individual)
- **Enumerated:** June 11, 2007
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 46015 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 2800 MAIN ST, Bridgeport, CT 06606-4201
- **Phone:** (401) 272-1800
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Northeast Medical Group, Inc. (NPI 1043278351, Bridgeport, CT); The Hospital Of Central Connecticut At New Britain General And Bradley (NPI 1053477075, New Britain, CT); Hartford Healthcare Medical Group Specialists, PLLC (NPI 1023584216, Hartford, CT); Hartford Hospital (NPI 1407806391, Hartford, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Geisel School Of Medicine At Dartmouth, class of 2002
## Record status
- **NPPES last updated:** September 29, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1255535670) · Data from the CMS NPPES public registry.