MAXWELL SUMKIN BUTLER MD
NPI 1326787755
Family Medicine in Sun Prairie, WI
About Maxwell Sumkin Butler Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAXWELL SUMKIN BUTLER MD (NPI 1326787755) is an individual family medicine provider in Sun Prairie, Wisconsin, licensed in Wisconsin (85401) and active in the NPI registry since June 2022. He is enrolled in Medicare PECOS, is affiliated with University Of Wi Hospitals & Clinics Authority, and is a graduate of University Of Wisconsin School Of Medicine (2022).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Maxwell Sumkin Butler Md 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Wi Hospitals & Clinics Authority
Acute Care Hospitals · Madison, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53590 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SUN PRAIRIE, WI 53590
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 Maxwell Butler's NPI number?
The NPI number for Maxwell Butler is 1326787755. It was assigned to this individual provider in the NPPES registry on June 2, 2022.
Where is Maxwell Butler located?
Maxwell Butler practices at 2651 Windsor St, Sun Prairie, WI 53590. The listed phone number is (608) 837-2206.
What is Maxwell Butler's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Maxwell Butler enrolled in Medicare?
Yes. Maxwell Butler 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.
Is Maxwell Butler affiliated with any hospitals?
According to CMS data, Maxwell Butler is affiliated with University Of Wi Hospitals & Clinics Authority.
When was this NPI record last updated?
The NPPES record for Maxwell Butler was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days 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.
# Maxwell Sumkin Butler, MD · NPI 1326787755
Family Medicine physician in Sun Prairie, Wisconsin. Individual provider, active in the CMS NPPES registry since June 2, 2022.
## Identity
- **NPI:** 1326787755 (Entity type: Individual)
- **Enumerated:** June 2, 2022
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 85401 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 2651 WINDSOR ST, Sun Prairie, WI 53590-9825
- **Phone:** (608) 837-2206
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of Wisconsin School Of Medicine, class of 2022
## Record status
- **NPPES last updated:** August 7, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1326787755) · Data from the CMS NPPES public registry.