STEPHEN LO MD
NPI 1407875206
Pediatrics in Fitchburg, WI
About Stephen Lo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN LO MD (NPI 1407875206) is an individual pediatrics provider in Fitchburg, Wisconsin, licensed in Wisconsin (36986) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Stephen Lo Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Stephen Lo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Madison, WI 53717
- Reassigned Medicare billing, Wisconsin enrollment
- 422 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 53711 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.
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 Lo's NPI number?
The NPI number for Stephen Lo is 1407875206. It was assigned to this individual provider in the NPPES registry on July 19, 2006.
Where is Stephen Lo located?
Stephen Lo practices at 3051 Cahill Main, Fitchburg, WI 53711. The listed phone number is (608) 661-7200.
What is Stephen Lo's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Stephen Lo enrolled in Medicare?
Yes. Stephen Lo is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Stephen Lo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Lo reassigns Medicare benefits to Group Health Cooperative Of South Central Wisconsin (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 Stephen Lo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephen Lo accept?
Health plans from Group Health Cooperative-SCW, MercyCare and MercyCare Health Plans list Stephen Lo 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.
When was this NPI record last updated?
The NPPES record for Stephen Lo was last updated on January 18, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 Lo, MD · NPI 1407875206
Pediatrics physician in Fitchburg, Wisconsin. Individual provider, active in the CMS NPPES registry since July 19, 2006.
## Identity
- **NPI:** 1407875206 (Entity type: Individual)
- **Enumerated:** July 19, 2006
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 36986 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 3051 CAHILL MAIN, Fitchburg, WI 53711-7109
- **Phone:** (608) 661-7200
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Group Health Cooperative Of South Central Wisconsin (NPI 1245260165, Madison, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 18, 2017
- **Other identifiers:** Medicare UPIN G63185 (WI); Medicaid 32381300 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1407875206) · Data from the CMS NPPES public registry.