DR. DAVID JOHN PORTMANN D.C.
NPI 1073534616
Chiropractor in Howards Grove, WI
About Dr. David John Portmann D.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID JOHN PORTMANN D.C. (NPI 1073534616) is an individual chiropractor in Howards Grove, Wisconsin, licensed in Wisconsin (3724) and active in the NPI registry since July 2006. He is a graduate of Northwestern College Of Chiropractic (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
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. David John Portmann 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 Reassignments
2Medicare enrollment records show David Portmann reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Howards Grove, WI 53083
- Reassigned Medicare billing, Wisconsin enrollment
- 6 clinicians in this Medicare group
Manitowoc, WI 54220
- Reassigned Medicare billing, Wisconsin 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 8
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 David Portmann's NPI number?
The NPI number for David Portmann is 1073534616. It was assigned to this individual provider in the NPPES registry on July 21, 2006.
Where is David Portmann located?
David Portmann practices at 516 S Wisconsin Dr, Howards Grove, WI 53083. The listed phone number is (920) 565-3922.
What is David Portmann's specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is David Portmann enrolled in Medicare?
Yes. David Portmann 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 organizations bill Medicare for David Portmann's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Portmann reassigns Medicare benefits to 2 organizations: Varish Chiropractic Clinics, LLC (Howards Grove, WI) and Manitowoc Chiropractic LLC (Manitowoc, 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 David Portmann's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Portmann accept?
Health plans from Dean Health Plan and UnitedHealthcare list David Portmann 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 David Portmann 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. David John Portmann, D.C. · NPI 1073534616
Chiropractor provider in Howards Grove, Wisconsin. Individual provider, active in the CMS NPPES registry since July 21, 2006.
## Identity
- **NPI:** 1073534616 (Entity type: Individual)
- **Enumerated:** July 21, 2006
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **State license:** 3724 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 516 S WISCONSIN DR, Howards Grove, WI 53083-1261
- **Phone:** (920) 565-3922
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Varish Chiropractic Clinics, LLC (NPI 1316008055, Howards Grove, WI); Manitowoc Chiropractic LLC (NPI 1962284059, Manitowoc, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northwestern College Of Chiropractic, class of 2000
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare ID-Type Unspecified 70835 (WI); Medicare UPIN U83039 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1073534616) · Data from the CMS NPPES public registry.