MARGARET RUTH LESAGE MD
NPI 1225242225
Family Medicine in Windsor, CO
About Margaret Ruth Lesage Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET RUTH LESAGE MD (NPI 1225242225) is an individual family medicine provider in Windsor, Colorado, licensed in Colorado (45145) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in Longmont, and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
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
Margaret Ruth Lesage 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
2Medicare enrollment records show Margaret Lesage reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Loveland, CO 80538
- Reassigned Medicare billing, Colorado enrollment
- 2,596 clinicians in this Medicare group
Fort Collins, CO 80524
- Reassigned Medicare billing, Colorado enrollment
- 108 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 8
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80550 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 5
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 9
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 Margaret Lesage's NPI number?
The NPI number for Margaret Lesage is 1225242225. It was assigned to this individual provider in the NPPES registry on May 9, 2007. The provider is also known as Margaret Ruth Lesage Ausema M.D..
Where is Margaret Lesage located?
Margaret Lesage practices at 1455 Main St Ste 140, Windsor, CO 80550. The listed phone number is (970) 686-3950.
What is Margaret Lesage's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Margaret Lesage enrolled in Medicare?
Yes. Margaret Lesage 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 Margaret Lesage's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Lesage reassigns Medicare benefits to 2 organizations: Poudre Valley Medical Group, LLC (Loveland, CO) and Vmd Primary Providers Colorado, Inc (Fort Collins, CO). 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 Margaret Lesage's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Margaret Lesage accept?
Health plans from Select Health list Margaret Lesage 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 Margaret Lesage was last updated on December 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.
# Margaret Ruth Lesage, MD · NPI 1225242225
Family Medicine physician in Windsor, Colorado. Individual provider, active in the CMS NPPES registry since May 9, 2007.
## Identity
- **NPI:** 1225242225 (Entity type: Individual)
- **Enumerated:** May 9, 2007
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 45145 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 1455 MAIN ST STE 140, Windsor, CO 80550-5559
- **Phone:** (970) 686-3950 · **Fax:** (970) 686-3960
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Poudre Valley Medical Group, LLC (NPI 1366763260, Loveland, CO); Vmd Primary Providers Colorado, Inc (NPI 1275646614, Fort Collins, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** December 20, 2025
- **Other identifiers:** Medicaid 25078852 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1225242225) · Data from the CMS NPPES public registry.