DR. GREGORY A CELAYA D.C.
NPI 1306010384
Chiropractor in Thousand Oaks, CA
About Dr. Gregory A Celaya D.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY A CELAYA D.C. (NPI 1306010384) is an individual chiropractor in Thousand Oaks, California, licensed in California (DC17612) and active in the NPI registry since April 2008.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Gregory A Celaya D.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gregory Celaya reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Thousand Oaks, CA 91362
- 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
THOUSAND OAKS, CA 91362
THOUSAND OAKS, CA 91362
THOUSAND OAKS, CA 91362
THOUSAND OAKS, CA 91362
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 Gregory Celaya's NPI number?
The NPI number for Gregory Celaya is 1306010384. It was assigned to this individual provider in the NPPES registry on April 21, 2008.
Where is Gregory Celaya located?
Gregory Celaya practices at 1325 E Thousand Oaks Blvd #104, Thousand Oaks, CA 91362. The listed phone number is (805) 371-6144.
What is Gregory Celaya's specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is Gregory Celaya enrolled in Medicare?
Yes. Gregory Celaya is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gregory Celaya's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Celaya reassigns Medicare benefits to Gregory A Celaya Chiropractic Corporation (Thousand Oaks, 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 Gregory Celaya'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 Gregory Celaya was last updated on February 23, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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. Gregory A Celaya, D.C. · NPI 1306010384
Chiropractor provider in Thousand Oaks, California. Individual provider, active in the CMS NPPES registry since April 21, 2008.
## Identity
- **NPI:** 1306010384 (Entity type: Individual)
- **Enumerated:** April 21, 2008
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **State license:** DC17612 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1325 E THOUSAND OAKS BLVD, #104, Thousand Oaks, CA 91362-2822
- **Phone:** (805) 371-6144
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** Gregory A Celaya Chiropractic Corporation (NPI 1710209317, Thousand Oaks, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 23, 2010
- **Other identifiers:** Medicare UPIN T18578 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1306010384) · Data from the CMS NPPES public registry.