GEOFFREY S. GLADSTEIN M.D.
NPI 1427060938
Internal Medicine - Rheumatology in Trumbull, CT
About Geoffrey S. Gladstein M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GEOFFREY S. GLADSTEIN M.D. (NPI 1427060938) is an individual rheumatology provider in Trumbull, Connecticut, licensed in Connecticut (020015) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Geoffrey S. Gladstein M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Geoffrey Gladstein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bridgeport, CT 06610
- Reassigned Medicare billing, Connecticut enrollment
- 1,824 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 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 Geoffrey Gladstein's NPI number?
The NPI number for Geoffrey Gladstein is 1427060938. It was assigned to this individual provider in the NPPES registry on August 13, 2006.
Where is Geoffrey Gladstein located?
Geoffrey Gladstein practices at 5520 Park Ave, Trumbull, CT 06611. The listed phone number is (203) 371-5873.
What is Geoffrey Gladstein's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Geoffrey Gladstein enrolled in Medicare?
Yes. Geoffrey Gladstein is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Geoffrey Gladstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Geoffrey Gladstein reassigns Medicare benefits to Northeast Medical Group, Inc. (Bridgeport, CT). The 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 Geoffrey Gladstein'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 Geoffrey Gladstein was last updated on May 31, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Geoffrey S. Gladstein, M.D. · NPI 1427060938
Rheumatology physician in Trumbull, Connecticut. Individual provider, active in the CMS NPPES registry since August 13, 2006.
## Identity
- **NPI:** 1427060938 (Entity type: Individual)
- **Enumerated:** August 13, 2006
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 020015 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 5520 PARK AVE, Trumbull, CT 06611-3463
- **Phone:** (203) 371-5873 · **Fax:** (203) 371-5874
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Northeast Medical Group, Inc. (NPI 1043278351, Bridgeport, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 31, 2013
- **Other identifiers:** Medicare PIN 110008829 (CT); Medicaid 001200153 (CT); Medicare UPIN D33544 (CT)
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Source: [NPI Profile](https://npiprofile.com/npi/1427060938) · Data from the CMS NPPES public registry.