GI DIAGNOSTICS, LLC
NPI 1396500633
Internal Medicine - Gastroenterology in Boca Raton, FL
About Gi Diagnostics, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GI DIAGNOSTICS, LLC (NPI 1396500633) is a healthcare organization registered as a gastroenterology in Boca Raton, Florida and active in the NPI registry since February 2024. The organization lists Michael Harris Nathanson, Authorized Official, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gi Diagnostics, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Gi Diagnostics, LLC, which bills Medicare for the services they deliver. They are listed nearest first.
Clinicians, nearest first (3)
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 Gi Diagnostics, LLC's NPI number?
The NPI number for Gi Diagnostics, LLC is 1396500633. It was assigned to this organization in the NPPES registry on February 15, 2024.
Where is Gi Diagnostics, LLC located?
Gi Diagnostics, LLC is located at 4805 NW 2nd Ave, Boca Raton, FL 33431. The listed phone number is (203) 988-0567.
What is Gi Diagnostics, LLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Gi Diagnostics, LLC enrolled in Medicare?
Yes. Gi Diagnostics, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Gi Diagnostics, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Gi Diagnostics, LLC, in Gastroenterology and Nurse Practitioner. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Gi Diagnostics, LLC was last updated on April 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Gi Diagnostics, Llc · NPI 1396500633
Gastroenterology organization in Boca Raton, Florida. Organization record, active in the CMS NPPES registry since February 15, 2024.
## Identity
- **NPI:** 1396500633 (Entity type: Organization)
- **Enumerated:** February 15, 2024
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Organization subpart:** No
- **Authorized official:** Michael Nathanson, AUTHORIZED OFFICIAL
## Practice location
- **Address:** 4805 NW 2ND AVE, Boca Raton, FL 33431-4141
- **Phone:** (203) 988-0567
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 3 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Gastroenterology (2), Nurse Practitioner (1) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 2, 2026
- **Other identifiers:** Medicaid 127362200 (FL)
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Source: [NPI Profile](https://npiprofile.com/npi/1396500633) · Data from the CMS NPPES public registry.