G3A GASTROENTEROLOGY LLC
NPI 1184321200
Internal Medicine - Gastroenterology in San Juan, PR
About G3a Gastroenterology Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
G3A GASTROENTEROLOGY LLC (NPI 1184321200) is a healthcare organization registered as a gastroenterology in San Juan, Puerto Rico and active in the NPI registry since February 2023. The organization lists Artemio Santiago Molina, President / Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
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)
G3a Gastroenterology Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to G3a Gastroenterology LLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 G3a Gastroenterology LLC's NPI number?
The NPI number for G3a Gastroenterology LLC is 1184321200. It was assigned to this organization in the NPPES registry on February 9, 2023.
Where is G3a Gastroenterology LLC located?
G3a Gastroenterology LLC is located at 150 Ave Americo Miranda Bo Monacillos Hospital Oncologico, San Juan, PR 00935. The listed phone number is (787) 413-9923.
What is G3a Gastroenterology LLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is G3a Gastroenterology LLC enrolled in Medicare?
Yes. G3a Gastroenterology LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through G3a Gastroenterology LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Gastroenterology) reassigns their Medicare billing to G3a Gastroenterology LLC. 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 G3a Gastroenterology LLC was last updated on February 9, 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.
# G3a Gastroenterology Llc · NPI 1184321200
Gastroenterology organization in San Juan, Puerto Rico. Organization record, active in the CMS NPPES registry since February 9, 2023.
## Identity
- **NPI:** 1184321200 (Entity type: Organization)
- **Enumerated:** February 9, 2023
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Organization subpart:** No
- **Authorized official:** Artemio Santiago Molina, PRESIDENT / OWNER
## Practice location
- **Address:** 150 AVE AMERICO MIRANDA BO MONACILLOS, HOSPITAL ONCOLOGICO, San Juan, PR 00935
- **Phone:** (787) 413-9923
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Gastroenterology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 9, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1184321200) · Data from the CMS NPPES public registry.