GROOTENDORST CHIROPRACTIC PROFESSIONAL CORPORATION
NPI 1972512184
Chiropractor in Madera, CA
About Grootendorst Chiropractic Professional Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GROOTENDORST CHIROPRACTIC PROFESSIONAL CORPORATION (NPI 1972512184) is a healthcare organization registered as a chiropractor in Madera, California and active in the NPI registry since August 2006. The organization lists David Grootendorst, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Grootendorst Chiropractic Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by October 31, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Grootendorst Chiropractic Professional Corporation, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.
Clinicians, nearest first (2)
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 Grootendorst Chiropractic Professional Corporation's NPI number?
The NPI number for Grootendorst Chiropractic Professional Corporation is 1972512184. It was assigned to this organization in the NPPES registry on August 5, 2006.
Where is Grootendorst Chiropractic Professional Corporation located?
Grootendorst Chiropractic Professional Corporation is located at 900 W Yosemite Ave, Madera, CA 93637. The listed phone number is (559) 674-8892.
What is Grootendorst Chiropractic Professional Corporation's specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is Grootendorst Chiropractic Professional Corporation enrolled in Medicare?
Yes. Grootendorst Chiropractic Professional Corporation is registered in the Medicare PECOS enrollment system.
When is Grootendorst Chiropractic Professional Corporation's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by October 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Grootendorst Chiropractic Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Chiropractic, reassign their Medicare billing to Grootendorst Chiropractic Professional Corporation. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Grootendorst Chiropractic Professional Corporation was last updated on April 16, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Grootendorst Chiropractic Professional Corporation · NPI 1972512184
Chiropractor organization in Madera, California. Organization record, active in the CMS NPPES registry since August 5, 2006.
## Identity
- **NPI:** 1972512184 (Entity type: Organization)
- **Enumerated:** August 5, 2006
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **Organization subpart:** No
- **Authorized official:** David Grootendorst, OWNER
## Practice location
- **Address:** 900 W YOSEMITE AVE, Madera, CA 93637
- **Phone:** (559) 674-8892 · **Fax:** (559) 674-1389
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** October 31, 2026 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 2 clinicians (Chiropractic) reassign Medicare billing to this organization (form CMS-855R); 2 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 16, 2020
- **Other identifiers:** Other GDC000470 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1972512184) · Data from the CMS NPPES public registry.