DR. JEFF WILLIAMS D.C.
NPI 1740508258
Chiropractor in Lancaster, CA
About Dr. Jeff Williams D.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JEFF WILLIAMS D.C. (NPI 1740508258) is an individual chiropractor in Lancaster, California, licensed in California (31525) and active in the NPI registry since May 2010. He is a graduate of Los Angeles College Of Chiropractic (2009).
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 and accepts Medicare assignment
Dr. Jeff Williams D.c. 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 Reassignment
Medicare enrollment records show Jeff Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Lancaster, CA 93534
- Reassigned Medicare billing, California enrollment
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
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.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LANCASTER, CA 93534
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 Jeff Williams's NPI number?
The NPI number for Jeff Williams is 1740508258. It was assigned to this individual provider in the NPPES registry on May 7, 2010.
Where is Jeff Williams located?
Jeff Williams practices at 44820 10th St W, Lancaster, CA 93534. The listed phone number is (661) 940-6302.
What is Jeff Williams's specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is Jeff Williams enrolled in Medicare?
Yes. Jeff Williams 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 organization bills Medicare for Jeff Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeff Williams reassigns Medicare benefits to Williams Chiropractic Health And Wellness Center Inc (Lancaster, 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 Jeff Williams'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 Jeff Williams was last updated on May 17, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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. Jeff Williams, D.C. · NPI 1740508258
Chiropractor provider in Lancaster, California. Individual provider, active in the CMS NPPES registry since May 7, 2010.
## Identity
- **NPI:** 1740508258 (Entity type: Individual)
- **Enumerated:** May 7, 2010
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **State license:** 31525 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 44820 10TH ST W, Lancaster, CA 93534-2312
- **Phone:** (661) 940-6302 · **Fax:** (661) 940-6083
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Williams Chiropractic Health And Wellness Center Inc (NPI 1578843579, Lancaster, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Los Angeles College Of Chiropractic, class of 2009
## Record status
- **NPPES last updated:** May 17, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1740508258) · Data from the CMS NPPES public registry.