ALEXA HARRIS
NPI 1033004585
Nurse Practitioner - Family in Mill Valley, CA
About Alexa Harris NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXA HARRIS (NPI 1033004585) is an individual family provider in Mill Valley, California, licensed in California (95037939) and active in the NPI registry since June 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2025).
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)
Alexa Harris is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Alexa Harris reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mill Valley, CA 94941
- Reassigned Medicare billing, California enrollment
- 5 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94941 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MILL VALLEY, CA 94941
MILL VALLEY, CA 94941
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 Alexa Harris's NPI number?
The NPI number for Alexa Harris is 1033004585. It was assigned to this individual provider in the NPPES registry on June 12, 2025.
Where is Alexa Harris located?
Alexa Harris practices at 655 Redwood Hwy Frontage Rd Ste 246, Mill Valley, CA 94941. The listed phone number is (415) 301-5000.
What is Alexa Harris's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Alexa Harris enrolled in Medicare?
Yes. Alexa Harris is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Alexa Harris's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexa Harris reassigns Medicare benefits to Zand Dermatology Inc (Mill Valley, 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 Alexa Harris'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 Alexa Harris was last updated on April 8, 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.
# Alexa Harris · NPI 1033004585
Family physician in Mill Valley, California. Individual provider, active in the CMS NPPES registry since June 12, 2025.
## Identity
- **NPI:** 1033004585 (Entity type: Individual)
- **Enumerated:** June 12, 2025
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95037939 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 655 REDWOOD HWY FRONTAGE RD STE 246, Mill Valley, CA 94941-3055
- **Phone:** (415) 301-5000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Zand Dermatology Inc (NPI 1548773286, Mill Valley, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** April 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1033004585) · Data from the CMS NPPES public registry.