DR. GREGORY S BLOOM MD
NPI 1316088248
Internal Medicine - Cardiovascular Disease in Trumbull, CT
About Dr. Gregory S Bloom Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY S BLOOM MD (NPI 1316088248) is an individual cardiovascular disease provider in Trumbull, Connecticut, licensed in Connecticut (045101) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of George Washington University School Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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. Gregory S Bloom 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
2Medicare enrollment records show Gregory Bloom reassigns Medicare billing to 2 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
Bridgeport, CT 06610
- Reassigned Medicare billing, Connecticut enrollment
- 219 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.
Areas of Expertise CMS Part B claims 17
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06611 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.
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 Gregory Bloom's NPI number?
The NPI number for Gregory Bloom is 1316088248. It was assigned to this individual provider in the NPPES registry on February 12, 2007.
Where is Gregory Bloom located?
Gregory Bloom practices at 112 Quarry Rd Suite 400, Trumbull, CT 06611. The listed phone number is (203) 333-8800.
What is Gregory Bloom's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Gregory Bloom enrolled in Medicare?
Yes. Gregory Bloom 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 Gregory Bloom's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Bloom reassigns Medicare benefits to 2 organizations: Northeast Medical Group, Inc. (Bridgeport, CT) and Bridgeport Hospital (Bridgeport, 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 Gregory Bloom's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Gregory Bloom was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Gregory S Bloom, MD · NPI 1316088248
Cardiovascular Disease physician in Trumbull, Connecticut. Individual provider, active in the CMS NPPES registry since February 12, 2007.
## Identity
- **NPI:** 1316088248 (Entity type: Individual)
- **Enumerated:** February 12, 2007
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** 045101 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 112 QUARRY RD, SUITE 400, Trumbull, CT 06611-4816
- **Phone:** (203) 333-8800 · **Fax:** (203) 333-6054
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Northeast Medical Group, Inc. (NPI 1043278351, Bridgeport, CT); Bridgeport Hospital (NPI 1649260845, Bridgeport, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** George Washington University School Of Medicine, class of 2001
## Record status
- **NPPES last updated:** March 7, 2023
- **Other identifiers:** Other 045101 (CT)
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Source: [NPI Profile](https://npiprofile.com/npi/1316088248) · Data from the CMS NPPES public registry.