DR. ROGER OSCAR GUNDLACH D.C,
NPI 1003964248
Chiropractor in Ripon, WI
About Dr. Roger Oscar Gundlach D.c, NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROGER OSCAR GUNDLACH D.C, (NPI 1003964248) is an individual chiropractor in Ripon, Wisconsin, licensed in Wisconsin (2307-012) and active in the NPI registry since January 2007. He is a graduate of Northwestern College Of Chiropractic (1987).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Roger Oscar Gundlach D.c, is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Roger Gundlach reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ripon, WI 54971
- Reassigned Medicare billing, Wisconsin enrollment
Appleton, WI 54914
- Reassigned Medicare billing, Wisconsin 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.
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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Roger Gundlach's NPI number?
The NPI number for Roger Gundlach is 1003964248. It was assigned to this individual provider in the NPPES registry on January 6, 2007.
Where is Roger Gundlach located?
Roger Gundlach practices at 315 Mount Zion Dr, Ripon, WI 54971. The listed phone number is (920) 745-3020.
What is Roger Gundlach's specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is Roger Gundlach enrolled in Medicare?
Yes. Roger Gundlach is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Roger Gundlach's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Roger Gundlach reassigns Medicare benefits to 2 organizations: Gundlach Chiropractic, Sc (Ripon, WI) and Tri Corner Chiropractic LLC (Appleton, WI). Each 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 Roger Gundlach's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Roger Gundlach accept?
Health plans from Dean Health Plan and Network Health list Roger Gundlach as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Roger Gundlach was last updated on July 8, 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.
# Dr. Roger Oscar Gundlach, D.C, · NPI 1003964248
Chiropractor provider in Ripon, Wisconsin. Individual provider, active in the CMS NPPES registry since January 6, 2007.
## Identity
- **NPI:** 1003964248 (Entity type: Individual)
- **Enumerated:** January 6, 2007
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **State license:** 2307-012 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 315 MOUNT ZION DR, Ripon, WI 54971-1713
- **Phone:** (920) 745-3020
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Gundlach Chiropractic, Sc (NPI 1225313422, Ripon, WI); Tri Corner Chiropractic LLC (NPI 1164589271, Appleton, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northwestern College Of Chiropractic, class of 1987
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN T62082 (WI); Medicare ID-Type Unspecified 75952 (WI); Medicaid 38842600 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1003964248) · Data from the CMS NPPES public registry.