MARY CALLIS MD
NPI 1730334020
Family Medicine in Keshena, WI
About Mary Callis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY CALLIS MD (NPI 1730334020) is an individual family medicine provider in Keshena, Wisconsin, licensed in Wisconsin (56810-020) and active in the NPI registry since December 2008. She is enrolled in Medicare PECOS, is affiliated with Uw Health, and is a graduate of University Of Utah School Of Medicine (2008).
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
Mary Callis 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.
Medicare Billing Reassignments
4Medicare enrollment records show Mary Callis reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Janesville, WI 53548
- Reassigned Medicare billing, Wisconsin enrollment
- 1,155 clinicians in this Medicare group
Belvidere, IL 61008
- Reassigned Medicare billing, Illinois enrollment
- 90 clinicians in this Medicare group
Rockford, IL 61104
- Reassigned Medicare billing, Illinois enrollment
- 106 clinicians in this Medicare group
Galena, IL 61036
- Reassigned Medicare billing, Illinois enrollment
- 71 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 4
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Uw Health
Acute Care Hospitals · Rockford, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54135 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.
KESHENA, WI 54135
KESHENA, WI 54135
KESHENA, WI 54135
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 Mary Callis's NPI number?
The NPI number for Mary Callis is 1730334020. It was assigned to this individual provider in the NPPES registry on December 1, 2008.
Where is Mary Callis located?
Mary Callis practices at W3275 Wolf River Road Menominee Tribal Clinic, Keshena, WI 54135. The listed phone number is (715) 799-3361.
What is Mary Callis's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Mary Callis enrolled in Medicare?
Yes. Mary Callis 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 Mary Callis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Callis reassigns Medicare benefits to 4 organizations: Mercy Health System Corporation (Janesville, WI), Belvidere Emergency Physicians, LLC (Belvidere, IL), Rockford Emergency Physicians, LLC (Rockford, IL) and Midwest Medical Center (Galena, IL). 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 Mary Callis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mary Callis affiliated with any hospitals?
According to CMS data, Mary Callis is affiliated with Uw Health.
When was this NPI record last updated?
The NPPES record for Mary Callis was last updated on September 28, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.