ALEXA RAYNE SERS
NPI 1962321091
Chiropractor in Upland, CA
About Alexa Rayne Sers NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXA RAYNE SERS (NPI 1962321091) is an individual chiropractor in Upland, California, licensed in California (37685) and active in the NPI registry since July 2026. She is a graduate of Other (2026).
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 (PECOS)
Alexa Rayne Sers is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Alexa Sers reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Upland, CA 91786
- Reassigned Medicare billing, California enrollment
- 2 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
UPLAND, CA 91786
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 Sers's NPI number?
The NPI number for Alexa Sers is 1962321091. It was assigned to this individual provider in the NPPES registry on July 13, 2026.
Where is Alexa Sers located?
Alexa Sers practices at 659 E 15th St Ste H, Upland, CA 91786. The listed phone number is (909) 694-4200.
What is Alexa Sers's specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is Alexa Sers enrolled in Medicare?
Yes. Alexa Sers is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Alexa Sers's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexa Sers reassigns Medicare benefits to Castle Health & Wellness Chiropractic By Castillo Inc. (Upland, 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 Sers'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 Sers was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 Rayne Sers · NPI 1962321091
Chiropractor provider in Upland, California. Individual provider, active in the CMS NPPES registry since July 13, 2026.
## Identity
- **NPI:** 1962321091 (Entity type: Individual)
- **Enumerated:** July 13, 2026
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **State license:** 37685 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 659 E 15TH ST STE H, Upland, CA 91786-2333
- **Phone:** (909) 694-4200
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** Castle Health & Wellness Chiropractic By Castillo Inc. (NPI 1154035319, Upland, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2026
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1962321091) · Data from the CMS NPPES public registry.