ARNOLD A ASP MD
NPI 1700888922
Internal Medicine - Endocrinology, Diabetes & Metabolism in La Crosse, WI
About Arnold A Asp Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARNOLD A ASP MD (NPI 1700888922) is an individual endocrinology, diabetes & metabolism provider in La Crosse, Wisconsin, licensed in Wisconsin (27431) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Arnold A Asp Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Arnold Asp reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
La Crosse, WI 54601
- Reassigned Medicare billing, Iowa and Wisconsin enrollments
- 179 clinicians in this Medicare group
La Crosse, WI 54601
- Reassigned Medicare billing, Wisconsin enrollment
- 1,457 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 8
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LA CROSSE, WI 54601
LA CROSSE, WI 54601
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 Arnold Asp's NPI number?
The NPI number for Arnold Asp is 1700888922. It was assigned to this individual provider in the NPPES registry on June 1, 2005.
Where is Arnold Asp located?
Arnold Asp practices at 1836 South Ave, La Crosse, WI 54601. The listed phone number is (608) 782-7300.
What is Arnold Asp's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Arnold Asp enrolled in Medicare?
Yes. Arnold Asp is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Arnold Asp's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Arnold Asp reassigns Medicare benefits to 2 organizations: Gundersen Clinic Ltd (La Crosse, WI) and Gundersen Lutheran Medical Center, Inc (La Crosse, 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 Arnold Asp'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 Arnold Asp was last updated on July 17, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Arnold A Asp, MD · NPI 1700888922
Endocrinology, Diabetes & Metabolism physician in La Crosse, Wisconsin. Individual provider, active in the CMS NPPES registry since June 1, 2005.
## Identity
- **NPI:** 1700888922 (Entity type: Individual)
- **Enumerated:** June 1, 2005
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** 27431 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1836 SOUTH AVE, La Crosse, WI 54601-5429
- **Phone:** (608) 782-7300
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Gundersen Clinic Ltd (NPI 1851343115, La Crosse, WI); Gundersen Lutheran Medical Center, Inc (NPI 1619210895, La Crosse, WI) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 17, 2009
- **Other identifiers:** Medicare UPIN F17460; Medicaid 34243200 (WI); Medicare PIN 0094 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1700888922) · Data from the CMS NPPES public registry.