NANCY D WARREN AUD
NPI 1265734404
Audiologist in Santa Rosa, CA
About Nancy D Warren Aud NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NANCY D WARREN AUD (NPI 1265734404) is an individual audiologist in Santa Rosa, California, licensed in California (AU3129) and active in the NPI registry since November 2010.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Nancy D Warren Aud is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Nancy Warren reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Vallejo, CA 94589
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SANTA ROSA, CA 95403
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 Nancy Warren's NPI number?
The NPI number for Nancy Warren is 1265734404. It was assigned to this individual provider in the NPPES registry on November 19, 2010.
Where is Nancy Warren located?
Nancy Warren practices at 3333 Mendocino Ave Suite 240, Santa Rosa, CA 95403. The listed phone number is (707) 566-5201.
What is Nancy Warren's specialty?
The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.
Is Nancy Warren enrolled in Medicare?
Yes. Nancy Warren is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Nancy Warren's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Warren reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, CA). The 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 Nancy Warren's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Nancy Warren was last updated on February 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Nancy D Warren, AUD · NPI 1265734404
Audiologist provider in Santa Rosa, California. Individual provider, active in the CMS NPPES registry since November 19, 2010.
## Identity
- **NPI:** 1265734404 (Entity type: Individual)
- **Enumerated:** November 19, 2010
- **Primary specialty:** Audiologist · taxonomy 231H00000X
- **State license:** AU3129 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3333 MENDOCINO AVE, SUITE 240, Santa Rosa, CA 95403-2261
- **Phone:** (707) 566-5201
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1336222397, Vallejo, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 11, 2022
---
Source: [NPI Profile](https://npiprofile.com/npi/1265734404) · Data from the CMS NPPES public registry.