DR. JOSEPH ALEXANDER EISNER M.D.
NPI 1063776516
Surgery in Oxnard, CA
About Dr. Joseph Alexander Eisner M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOSEPH ALEXANDER EISNER M.D. (NPI 1063776516) is an individual surgery provider in Oxnard, California, licensed in California (A128860) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of New York University School Of Medicine (2012).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Group Practice 1
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. Joseph Alexander Eisner M.d. 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
3Medicare enrollment records show Joseph Eisner reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oxnard, CA 93030
- Reassigned Medicare billing, California enrollment
- 263 clinicians in this Medicare group
Oxnard, CA 93030
- Reassigned Medicare billing, California enrollment
- 6 clinicians in this Medicare group
Oxnard, CA 93036
- Reassigned Medicare billing, California enrollment
- 267 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.
Areas of Expertise CMS Part B claims 10
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 93030 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OXNARD, CA 93030
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 Joseph Eisner's NPI number?
The NPI number for Joseph Eisner is 1063776516. It was assigned to this individual provider in the NPPES registry on June 29, 2012.
Where is Joseph Eisner located?
Joseph Eisner practices at 1700 N Rose Ave Ste 430, Oxnard, CA 93030. The listed phone number is (805) 485-8722.
What is Joseph Eisner's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Joseph Eisner enrolled in Medicare?
Yes. Joseph Eisner 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 Joseph Eisner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Eisner reassigns Medicare benefits to 3 organizations: Pacific Central Coast Health Centers (Oxnard, CA), General Surgery Medical Group Of Ventura County (Oxnard, CA) and Community Memorial Health System (Oxnard, 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 Joseph Eisner'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 Joseph Eisner was last updated on September 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.