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DR. JAN WESDORF DC
NPI 1629102009
Chiropractor in Pleasant Hill, CA

Active since March 15, 2007Accepts Medicare Assignment
1100 PLEASANT VALLEY DR STE A, PLEASANT HILL, CA 94523(925) 274-9900(925) 274-1146 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Jan Wesdorf Dc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JAN WESDORF DC (NPI 1629102009) is an individual chiropractor in Pleasant Hill, California, licensed in California (DC 25395) and active in the NPI registry since March 2007. She is a graduate of Life Chiropractic College - West (1997).

NPPES Registry Identity

NPI1629102009
Entity TypeIndividualFemale
Primary Taxonomy111N00000X
Provider Legal NameDR. JAN WESDORFCredential: DC
Location Address1100 PLEASANT VALLEY DR STE APleasant Hill, CA 94523-4362
Mailing Address1100 Pleasant Valley Dr Ste APleasant Hill, CA 94523-4362 · (925) 274-9900 · Fax (925) 274-1146
Phone(925) 274-9900
Fax(925) 274-1146
Sole ProprietorYes
Medical School CMSLife Chiropractic College - WestGraduated 1997
Enumeration DateMarch 15, 2007
Last NPPES UpdateJuly 9, 2007
✔ NPI 1629102009 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in CA · DC 25395
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
1100 PLEASANT VALLEY DR STE A, Pleasant Hill, CA 94523
Open in Google Maps ↗

Other Identifiers 1

Medicare PINDC0253950CA

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. Jan Wesdorf Dc 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.

PECOS PAC ID6800878349
PECOS Enrollment IDI20040607001042

Medicare Billing Reassignment

Medicare enrollment records show Jan Wesdorf reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Life Chiropractic College West
21 mi
Chiropractor
25001 INDUSTRIAL BLVD
Hayward, CA 94545
  • Reassigned Medicare billing, California enrollment
  • 8 clinicians in this Medicare group
NPI 1376615807 (510) 780-4567

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.

Chiropractic manipulative treatment, 1-2 spinal regions 98940
Chiropractic manipulative treatment focuses on adjusting your spine to improve your body's physical function. In this service, a chiropractor applies controlled force to 1-2 spinal regions. This helps to restore mobility and alleviate discomfort in those areas.
74 services11 patients

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. GERALDINE A MULHALL DC
Chiropractor
1100 PLEASANT VALLEY DR STE A
PLEASANT HILL, CA 94523
Contra Costa County (925) 287-9517
STELLA YOUNG DC
Chiropractor
1100 PLEASANT VALLEY DR STE A
PLEASANT HILL, CA 94523
Contra Costa County (925) 274-9900

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 Jan Wesdorf's NPI number?

The NPI number for Jan Wesdorf is 1629102009. It was assigned to this individual provider in the NPPES registry on March 15, 2007.

Where is Jan Wesdorf located?

Jan Wesdorf practices at 1100 Pleasant Valley Dr Ste A, Pleasant Hill, CA 94523. The listed phone number is (925) 274-9900.

What is Jan Wesdorf's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Jan Wesdorf enrolled in Medicare?

Yes. Jan Wesdorf 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 Jan Wesdorf's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jan Wesdorf reassigns Medicare benefits to Life Chiropractic College West (Hayward, 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 Jan Wesdorf'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 Jan Wesdorf was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.