MARK LEKAS DO
NPI 1700827474
Emergency Medicine in Winnsboro, TX
About Mark Lekas Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK LEKAS DO (NPI 1700827474) is an individual emergency medicine provider in Winnsboro, Texas, licensed in Texas (K6090) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Baylor Medical Center At Trophy Club, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Other Identifiers 4
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
Mark Lekas Do 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
20Medicare enrollment records show Mark Lekas reassigns Medicare billing to 20 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tyler, TX 75702
- Reassigned Medicare billing, Texas enrollment
- 2,745 clinicians in this Medicare group
Tyler, TX 75701
- Reassigned Medicare billing, Texas enrollment
- 547 clinicians in this Medicare group
Bonham, TX 75418
- Reassigned Medicare billing, Texas enrollment
- 48 clinicians in this Medicare group
Jacksonville, TX 75766
- Reassigned Medicare billing, Texas enrollment
- 409 clinicians in this Medicare group
Texarkana, TX 75503
- Reassigned Medicare billing, Texas enrollment
- 128 clinicians in this Medicare group
Dallas, TX 75246
- Reassigned Medicare billing, Texas enrollment
- 1,044 clinicians in this Medicare group
Denison, TX 75020
- Reassigned Medicare billing, Texas enrollment
- 67 clinicians in this Medicare group
Fairfield, TX 75840
- Reassigned Medicare billing, Texas enrollment
- 76 clinicians in this Medicare group
Fairfield, TX 75840
- Reassigned Medicare billing, Texas enrollment
- 68 clinicians in this Medicare group
Trophy Club, TX 76262
- Reassigned Medicare billing, Texas enrollment
- 50 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 2
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baylor Medical Center At Trophy Club
Acute Care Hospitals · Trophy Club, TXMethodist Mckinney Hospital
Acute Care Hospitals · Mckinney, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75494 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.
WINNSBORO, TX 75494
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 Mark Lekas's NPI number?
The NPI number for Mark Lekas is 1700827474. It was assigned to this individual provider in the NPPES registry on June 10, 2006.
Where is Mark Lekas located?
Mark Lekas practices at 719 W Coke Rd, Winnsboro, TX 75494. The listed phone number is (903) 342-5227.
What is Mark Lekas's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Lekas enrolled in Medicare?
Yes. Mark Lekas 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 Mark Lekas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Lekas reassigns Medicare benefits to 20 organizations: Christus Trinity Clinic Texas (Tyler, TX), Mother Frances Hospital Regional Health Care Center (Tyler, TX), Hospitalist Medicine Physicians Of Texas - Cypress PLLC (Bonham, TX), Mother Frances Hospital Jacksonville (Jacksonville, TX), Union Emergency Physicians, PLLC (Texarkana, TX) and 15 more organizations, listed in the Medicare section above. 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 Mark Lekas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Lekas accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Molina Healthcare and Oscar Insurance Company and 1 other insurer list Mark Lekas 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 Mark Lekas affiliated with any hospitals?
According to CMS data, Mark Lekas is affiliated with Baylor Medical Center At Trophy Club and Methodist Mckinney Hospital.
When was this NPI record last updated?
The NPPES record for Mark Lekas was last updated on May 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Mark Lekas, DO · NPI 1700827474
Emergency Medicine physician in Winnsboro, Texas. Individual provider, active in the CMS NPPES registry since June 10, 2006.
## Identity
- **NPI:** 1700827474 (Entity type: Individual)
- **Enumerated:** June 10, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** K6090 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 719 W COKE RD, Winnsboro, TX 75494-3011
- **Phone:** (903) 342-5227
## 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:** 20 organizations under Medicare reassignment (form CMS-855R): Christus Trinity Clinic Texas (NPI 1285684225, Tyler, TX); Mother Frances Hospital Regional Health Care Center (NPI 1679578439, Tyler, TX); Hospitalist Medicine Physicians Of Texas - Cypress PLLC (NPI 1184458838, Bonham, TX); Mother Frances Hospital Jacksonville (NPI 1952306672, Jacksonville, TX); Union Emergency Physicians, PLLC (NPI 1023798501, Texarkana, TX); and 15 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** May 16, 2023
- **Other identifiers:** Medicaid 136538918 (TX); Other 0056MP (TX); Medicaid 136538922 (TX); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1700827474) · Data from the CMS NPPES public registry.