GUAM HEMATOLOGY ONCOLOGY ASSOCIATES, INC.
NPI 1871467464
Internal Medicine - Medical Oncology in Tamuning, GU
About Guam Hematology Oncology Associates, Inc. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GUAM HEMATOLOGY ONCOLOGY ASSOCIATES, INC. (NPI 1871467464) is a healthcare organization registered as a medical oncology in Tamuning, Guam and active in the NPI registry since October 2025. The organization lists Kelley Barnhart, Manager, 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)
Guam Hematology Oncology Associates, Inc. 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 Guam Hematology Oncology Associates, Inc., 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 Guam Hematology Oncology Associates, Inc.'s NPI number?
The NPI number for Guam Hematology Oncology Associates, Inc. is 1871467464. It was assigned to this organization in the NPPES registry on October 6, 2025.
Where is Guam Hematology Oncology Associates, Inc. located?
Guam Hematology Oncology Associates, Inc. is located at 1082 Pale San Vitores Rd Ste 22, Tamuning, GU 96913. The listed phone number is (671) 777-7017.
What is Guam Hematology Oncology Associates, Inc.'s specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Guam Hematology Oncology Associates, Inc. enrolled in Medicare?
Yes. Guam Hematology Oncology Associates, Inc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Guam Hematology Oncology Associates, Inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Hematology/Oncology) reassigns their Medicare billing to Guam Hematology Oncology Associates, Inc.. 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 Guam Hematology Oncology Associates, Inc. was last updated on April 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Guam Hematology Oncology Associates, Inc. · NPI 1871467464
Medical Oncology organization in Tamuning, GU. Organization record, active in the CMS NPPES registry since October 6, 2025.
## Identity
- **NPI:** 1871467464 (Entity type: Organization)
- **Enumerated:** October 6, 2025
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **Organization subpart:** No
- **Authorized official:** Kelley Barnhart, MANAGER
## Practice location
- **Address:** 1082 PALE SAN VITORES RD STE 22, Tamuning, GU 96913-4068
- **Phone:** (671) 777-7017
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Hematology/Oncology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 22, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1871467464) · Data from the CMS NPPES public registry.