SIMPSON CHIROPRACTIC GROUP, INC.
NPI 1649469578
Chiropractor in Brea, CA
About Simpson Chiropractic Group, Inc. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIMPSON CHIROPRACTIC GROUP, INC. (NPI 1649469578) is a healthcare organization registered as a chiropractor in Brea, California and active in the NPI registry since October 2007. The organization lists Todd R. Simpson, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Simpson Chiropractic Group, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Simpson Chiropractic Group, Inc., which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Simpson Chiropractic Group, Inc.'s NPI number?
The NPI number for Simpson Chiropractic Group, Inc. is 1649469578. It was assigned to this organization in the NPPES registry on October 16, 2007.
Where is Simpson Chiropractic Group, Inc. located?
Simpson Chiropractic Group, Inc. is located at 2500 E Imperial Hwy Suite: 164, Brea, CA 92821. The listed phone number is (714) 255-9494.
What is Simpson Chiropractic Group, Inc.'s specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is Simpson Chiropractic Group, Inc. enrolled in Medicare?
Yes. Simpson Chiropractic Group, Inc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Simpson Chiropractic Group, Inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Chiropractic) reassigns their Medicare billing to Simpson Chiropractic Group, Inc.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Simpson Chiropractic Group, Inc. was last updated on June 25, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Simpson Chiropractic Group, Inc. · NPI 1649469578
Chiropractor organization in Brea, California. Organization record, active in the CMS NPPES registry since October 16, 2007.
## Identity
- **NPI:** 1649469578 (Entity type: Organization)
- **Enumerated:** October 16, 2007
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **Organization subpart:** No
- **Authorized official:** Todd Simpson, OWNER
## Practice location
- **Address:** 2500 E IMPERIAL HWY, SUITE: 164, Brea, CA 92821-6122
- **Phone:** (714) 255-9494 · **Fax:** (714) 255-1019
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Chiropractic) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 25, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1649469578) · Data from the CMS NPPES public registry.