VALLEY NEPHROLOGY ASSOCIATES
NPI 1003948340
Specialist in Modesto, CA
About Valley Nephrology Associates NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
VALLEY NEPHROLOGY ASSOCIATES (NPI 1003948340) is a healthcare organization registered as a specialist in Modesto, California and active in the NPI registry since March 2007. The organization lists Jose M.r. Santos, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Valley Nephrology Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by February 28, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
5Medicare enrollment records show 5 clinicians reassign Medicare billing to Valley Nephrology Associates, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.
Clinicians, nearest first (5)
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 Valley Nephrology Associates's NPI number?
The NPI number for Valley Nephrology Associates is 1003948340. It was assigned to this organization in the NPPES registry on March 12, 2007.
Where is Valley Nephrology Associates located?
Valley Nephrology Associates is located at 608 E Orangeburg Ave, Modesto, CA 95350. The listed phone number is (209) 529-2645.
What is Valley Nephrology Associates's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Valley Nephrology Associates enrolled in Medicare?
Yes. Valley Nephrology Associates is registered in the Medicare PECOS enrollment system.
When is Valley Nephrology Associates's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Valley Nephrology Associates?
According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 2 Medicare specialties reassign their Medicare billing to Valley Nephrology Associates. 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 Nephrology (4) and Internal Medicine (1). Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Valley Nephrology Associates was last updated on March 3, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Valley Nephrology Associates · NPI 1003948340
Specialist organization in Modesto, California. Organization record, active in the CMS NPPES registry since March 12, 2007.
## Identity
- **NPI:** 1003948340 (Entity type: Organization)
- **Enumerated:** March 12, 2007
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Jose Santos, PRESIDENT
## Practice location
- **Address:** 608 E ORANGEBURG AVE, Modesto, CA 95350-5513
- **Phone:** (209) 529-2645 · **Fax:** (209) 529-3024
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** February 28, 2027 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 5 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nephrology (4), Internal Medicine (1); 3 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 3, 2010
- **Other identifiers:** Medicare ID-Type Unspecified ZZZ26656Z (CA); Medicaid GR0099870 (CA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1003948340) · Data from the CMS NPPES public registry.