MARIE K. THOMAS M.D.
NPI 1720024920
Colon & Rectal Surgery in Madison, WI
About Marie K. Thomas M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIE K. THOMAS M.D. (NPI 1720024920) is an individual colon & rectal surgery provider in Madison, Wisconsin, licensed in Wisconsin (51099-020) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Ssm Health St Mary's Hospital - Madison, and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Marie K. Thomas M.d. 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 Marie Thomas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Madison, WI 53715
- Reassigned Medicare billing, Wisconsin enrollment
- 1,377 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 3
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.
Ssm Health St Mary's Hospital - Madison
Acute Care Hospitals · Madison, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53715 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 11
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.
MADISON, WI 53715
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 Marie Thomas's NPI number?
The NPI number for Marie Thomas is 1720024920. It was assigned to this individual provider in the NPPES registry on June 22, 2006.
Where is Marie Thomas located?
Marie Thomas practices at 700 S Park St Ste A, Madison, WI 53715. The listed phone number is (608) 260-2900.
What is Marie Thomas's specialty?
The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.
Is Marie Thomas enrolled in Medicare?
Yes. Marie Thomas 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 Marie Thomas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marie Thomas reassigns Medicare benefits to Dean Health Systems, Inc (Madison, 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 Marie Thomas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marie Thomas accept?
Health plans from Anthem Blue Cross and Blue Shield and Dean Health Plan list Marie Thomas 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.
Is Marie Thomas affiliated with any hospitals?
According to CMS data, Marie Thomas is affiliated with Ssm Health St Mary's Hospital - Madison.
When was this NPI record last updated?
The NPPES record for Marie Thomas was last updated on December 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.