HALEY SAPPENFIELD
NPI 1003739111
Nurse Practitioner - Critical Care Medicine in Madison, WI
About Haley Sappenfield NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HALEY SAPPENFIELD (NPI 1003739111) is an individual critical care medicine provider in Madison, Wisconsin, licensed in Wisconsin (1874533) and active in the NPI registry since August 2026. She is enrolled in Medicare PECOS and is a graduate of Rush Medical College Of Rush University (2026).
NPPES Registry Identity
Specialties & Licenses
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
Haley Sappenfield 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 Reassignment
Medicare enrollment records show Haley Sappenfield reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Middleton, WI 53562
- Reassigned Medicare billing, Wisconsin enrollment
- 2,832 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 53792 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
MADISON, WI 53792
MADISON, WI 53792
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 Haley Sappenfield's NPI number?
The NPI number for Haley Sappenfield is 1003739111. It was assigned to this individual provider in the NPPES registry on August 4, 2026.
Where is Haley Sappenfield located?
Haley Sappenfield practices at 600 Highland Ave, Madison, WI 53792. The listed phone number is (608) 263-6400.
What is Haley Sappenfield's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Critical Care Medicine, with taxonomy code 363LC0200X.
Is Haley Sappenfield enrolled in Medicare?
Yes. Haley Sappenfield 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 Haley Sappenfield's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Haley Sappenfield reassigns Medicare benefits to University Of Wisconsin Medical Foundation, Inc (Middleton, WI). 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 Haley Sappenfield'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 Haley Sappenfield was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.
# Haley Sappenfield · NPI 1003739111
Critical Care Medicine physician in Madison, Wisconsin. Individual provider, active in the CMS NPPES registry since August 4, 2026.
## Identity
- **NPI:** 1003739111 (Entity type: Individual)
- **Enumerated:** August 4, 2026
- **Primary specialty:** Nurse Practitioner - Critical Care Medicine · taxonomy 363LC0200X
- **State license:** 1874533 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 HIGHLAND AVE, Madison, WI 53792-0001
- **Phone:** (608) 263-6400
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** University Of Wisconsin Medical Foundation, Inc (NPI 1598784555, Middleton, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rush Medical College Of Rush University, class of 2026
## Record status
- **NPPES last updated:** September 2, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1003739111) · Data from the CMS NPPES public registry.