STEPHEN F. LAGA M.D.
NPI 1952361818
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Pleasant Prairie, WI
About Stephen F. Laga M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN F. LAGA M.D. (NPI 1952361818) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Pleasant Prairie, Wisconsin, licensed in Wisconsin (517) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Froedtert South Inc., and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Other Identifiers 3
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
Stephen F. Laga 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 Reassignments
3Medicare enrollment records show Stephen Laga reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Kenosha, WI 53143
- Reassigned Medicare billing, Wisconsin enrollment
- 212 clinicians in this Medicare group
Mountain Home, AR 72653
- Reassigned Medicare billing, Arkansas enrollment
- 17 clinicians in this Medicare group
Irving, TX 75038
- Reassigned Medicare billing, Texas enrollment
- 179 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
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.
Froedtert South Inc.
Acute Care Hospitals · Pleasant Prairie, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53158 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PLEASANT PRAIRIE, WI 53158
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 Stephen Laga's NPI number?
The NPI number for Stephen Laga is 1952361818. It was assigned to this individual provider in the NPPES registry on March 24, 2006.
Where is Stephen Laga located?
Stephen Laga practices at 9555 76th St Ste 3880, Pleasant Prairie, WI 53158. The listed phone number is (263) 653-5483.
What is Stephen Laga's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is Stephen Laga enrolled in Medicare?
Yes. Stephen Laga 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 Stephen Laga's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Laga reassigns Medicare benefits to 3 organizations: Froedtert South, Inc. (Kenosha, WI), Baxter County Regional Hospital Inc (Mountain Home, AR) and C H Wilkinson Physician Network (Irving, TX). 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 Stephen Laga's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephen Laga accept?
Health plans from Anthem Blue Cross and Blue Shield, Arkansas Blue Cross and Blue Shield, Health Advantage and Octave list Stephen Laga 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 Stephen Laga affiliated with any hospitals?
According to CMS data, Stephen Laga is affiliated with Froedtert South Inc..
When was this NPI record last updated?
The NPPES record for Stephen Laga was last updated on June 28, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Stephen F. Laga, M.D. · NPI 1952361818
Thoracic Surgery (Cardiothoracic Vascular Surgery) physician in Pleasant Prairie, Wisconsin. Individual provider, active in the CMS NPPES registry since March 24, 2006.
## Identity
- **NPI:** 1952361818 (Entity type: Individual)
- **Enumerated:** March 24, 2006
- **Primary specialty:** Thoracic Surgery (Cardiothoracic Vascular Surgery) · taxonomy 208G00000X
- **State license:** 517 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 9555 76TH ST STE 3880, Pleasant Prairie, WI 53158-1984
- **Phone:** (263) 653-5483
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Froedtert South, Inc. (NPI 1558305284, Kenosha, WI); Baxter County Regional Hospital Inc (NPI 1841437175, Mountain Home, AR); C H Wilkinson Physician Network (NPI 1457382947, Irving, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Saint Louis University School Of Medicine, class of 1979
## Record status
- **NPPES last updated:** June 28, 2024
- **Other identifiers:** Medicaid 7100547550 (KY); Medicaid 300004274 (IN); Medicaid 036060826 (IL)
---
Source: [NPI Profile](https://npiprofile.com/npi/1952361818) · Data from the CMS NPPES public registry.