AARON SPENCER PEREZ DO
NPI 1710621990
Emergency Medicine in Medford, OR
About Aaron Spencer Perez Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AARON SPENCER PEREZ DO (NPI 1710621990) is an individual emergency medicine provider in Medford, Oregon, licensed in Oregon (DO224480) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS and maintains a secondary practice location in Austin.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Aaron Spencer Perez Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Aaron Perez reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Medford, OR 97504
- Reassigned Medicare billing, Oregon enrollment
- 267 clinicians in this Medicare group
Grants Pass, OR 97527
- Reassigned Medicare billing, Oregon enrollment
- 207 clinicians in this Medicare group
Lakeway, TX 78734
- Reassigned Medicare billing, Texas enrollment
- 77 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 97504 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MEDFORD, OR 97504
MEDFORD, OR 97504
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 Aaron Perez's NPI number?
The NPI number for Aaron Perez is 1710621990. It was assigned to this individual provider in the NPPES registry on April 25, 2022.
Where is Aaron Perez located?
Aaron Perez practices at 2825 E Barnett Rd, Medford, OR 97504. The listed phone number is (541) 789-7000.
What is Aaron Perez's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Aaron Perez enrolled in Medicare?
Yes. Aaron Perez is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Aaron Perez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Perez reassigns Medicare benefits to 3 organizations: Asante (Medford, OR), Asante Three Rivers Medical Center, LLC (Grants Pass, OR) and Cec Lakeway Urgent Care Physicians PLLC (Lakeway, TX). 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 Aaron Perez'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 Aaron Perez was last updated on June 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.