ALAMEDA COUNTY
NPI 1710252978
Community/Behavioral Health in Hayward, CA
About Alameda County NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALAMEDA COUNTY (NPI 1710252978), doing business as Geriatric Assessment Response Team (gart), is a healthcare organization registered as a community/behavioral health in Hayward, California and active in the NPI registry since March 2012. The organization lists Karyn L Tribble, Director, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 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)
Alameda County is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
49Medicare enrollment records show 49 clinicians reassign Medicare billing to Alameda County, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 19 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 4
Nearest to this location (20)
See all 49Source: 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 Alameda County's NPI number?
The NPI number for Alameda County is 1710252978. It was assigned to this organization in the NPPES registry on March 20, 2012. The provider is doing business as Geriatric Assessment Response Team (gart).
Where is Alameda County located?
Alameda County is located at 409 Jackson St, Hayward, CA 94544. The listed phone number is (510) 891-5600.
What is Alameda County's specialty?
The primary specialty registered for this NPI is Community/Behavioral Health with taxonomy code 251S00000X.
Is Alameda County enrolled in Medicare?
Yes. Alameda County is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Alameda County?
According to the CMS Revalidation Reassignment List (October 2026 release), 49 clinicians in 4 Medicare specialties reassign their Medicare billing to Alameda County. 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. The largest specialties are Psychiatry (26), Clinical Social Worker (17) and Nurse Practitioner (4). Of these, 2 practice at this address and 19 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Alameda County was last updated on February 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Alameda County · NPI 1710252978
Community/Behavioral Health organization in Hayward, California. Organization record, active in the CMS NPPES registry since March 20, 2012.
## Identity
- **NPI:** 1710252978 (Entity type: Organization)
- **Enumerated:** March 20, 2012
- **Primary specialty:** Community/Behavioral Health · taxonomy 251S00000X
- **Also known as:** GERIATRIC ASSESSMENT RESPONSE TEAM (GART) (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Karyn Tribble, DIRECTOR
## Practice location
- **Address:** 409 JACKSON ST, Hayward, CA 94544-1530
- **Phone:** (510) 891-5600
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 49 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Psychiatry (26), Clinical Social Worker (17), Nurse Practitioner (4); 2 practice at this address and 19 within 10 miles; [full list](https://npiprofile.com/npi/1710252978/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 26, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1710252978) · Data from the CMS NPPES public registry.