DR. DIANA ARREDONDO WERNER DPM
NPI 1578884524
Podiatrist - Foot & Ankle Surgery in Palo Alto, CA
About Dr. Diana Arredondo Werner Dpm NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DIANA ARREDONDO WERNER DPM (NPI 1578884524) is an individual foot & ankle surgery provider in Palo Alto, California, licensed in California (EL 1733) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS and is a graduate of California School Of Podiatric Medicine (2008).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Diana Arredondo Werner Dpm is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Diana Werner reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Petaluma, CA 94954
- Reassigned Medicare billing, California enrollment
- 63 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PALO ALTO, CA 94304
PALO ALTO, CA 94304
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 Diana Werner's NPI number?
The NPI number for Diana Werner is 1578884524. It was assigned to this individual provider in the NPPES registry on June 14, 2010.
Where is Diana Werner located?
Diana Werner practices at 3801 Miranda Ave, Palo Alto, CA 94304. The listed phone number is (650) 493-5000.
What is Diana Werner's specialty?
The primary specialty registered for this NPI is Podiatrist, specializing in Foot & Ankle Surgery, with taxonomy code 213ES0103X.
Is Diana Werner enrolled in Medicare?
Yes. Diana Werner is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Diana Werner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diana Werner reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (Redwood City, CA) and Petaluma Health Center Inc (Petaluma, CA). Each 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 Diana Werner'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 Diana Werner 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.
# Dr. Diana Arredondo Werner, DPM · NPI 1578884524
Foot & Ankle Surgery provider in Palo Alto, California. Individual provider, active in the CMS NPPES registry since June 14, 2010.
## Identity
- **NPI:** 1578884524 (Entity type: Individual)
- **Enumerated:** June 14, 2010
- **Primary specialty:** Podiatrist - Foot & Ankle Surgery · taxonomy 213ES0103X
- **State license:** EL 1733 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3801 MIRANDA AVE, Palo Alto, CA 94304-1207
- **Phone:** (650) 493-5000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Permanente Medical Group Inc (NPI 1639252604, Redwood City, CA); Petaluma Health Center Inc (NPI 1588656268, Petaluma, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** California School Of Podiatric Medicine, class of 2008
## Record status
- **NPPES last updated:** February 11, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1578884524) · Data from the CMS NPPES public registry.