MARY ELLEN BILLINGTON M.D.
NPI 1982083291
Emergency Medicine in Houston, TX
About Mary Ellen Billington M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY ELLEN BILLINGTON M.D. (NPI 1982083291) is an individual emergency medicine provider in Houston, Texas, licensed in Texas (R3639) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 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)
Mary Ellen Billington M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
9Medicare enrollment records show Mary Ellen Billington reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Navasota, TX 77868
- Reassigned Medicare billing, Texas enrollment
- 132 clinicians in this Medicare group
Austin, TX 78723
- Reassigned Medicare billing, Texas enrollment
- 5,299 clinicians in this Medicare group
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 1,511 clinicians in this Medicare group
Dallas, TX 75246
- Reassigned Medicare billing, Texas enrollment
- 1,044 clinicians in this Medicare group
Gainesville, TX 76240
- Reassigned Medicare billing, Texas enrollment
- 1,193 clinicians in this Medicare group
Fort Walton Beach, FL 32547
- Reassigned Medicare billing, Florida enrollment
- 113 clinicians in this Medicare group
Winter Park, FL 32789
- Reassigned Medicare billing, Florida enrollment
- 74 clinicians in this Medicare group
Delray Beach, FL 33484
- Reassigned Medicare billing, Florida enrollment
- 527 clinicians in this Medicare group
- Reassigned Medicare billing, Texas enrollment
- 145 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 5
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 77030 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.
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.
HOUSTON, TX 77030
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 Mary Ellen Billington's NPI number?
The NPI number for Mary Ellen Billington is 1982083291. It was assigned to this individual provider in the NPPES registry on May 20, 2015.
Where is Mary Ellen Billington located?
Mary Ellen Billington practices at 6411 Fannin St, Houston, TX 77030. The listed phone number is (713) 500-7863.
What is Mary Ellen Billington's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mary Ellen Billington enrolled in Medicare?
Yes. Mary Ellen Billington is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mary Ellen Billington's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Ellen Billington reassigns Medicare benefits to 9 organizations: Brazos Valley Emergency Physicians PA (Navasota, TX), University Of Texas Southwestern Medical Center At Dallas (Austin, TX), Travis County Emergency Physicians PA (Austin, TX), Century Integrated Partners, Inc (Dallas, TX), Acs Primary Care Physicians Southwest, PA (Gainesville, TX) and 4 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 Mary Ellen Billington's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Ellen Billington accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Oscar Health Maintenance Organization of Florida and Oscar Insurance Company list Mary Ellen Billington 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 Mary Ellen Billington was last updated on May 10, 2021. 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.
# Mary Ellen Billington, M.D. · NPI 1982083291
Emergency Medicine physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since May 20, 2015.
## Identity
- **NPI:** 1982083291 (Entity type: Individual)
- **Enumerated:** May 20, 2015
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** R3639 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 6411 FANNIN ST, Houston, TX 77030-1501
- **Phone:** (713) 500-7863
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Brazos Valley Emergency Physicians PA (NPI 1982642955, Navasota, TX); University Of Texas Southwestern Medical Center At Dallas (NPI 1871729376, Austin, TX); Travis County Emergency Physicians PA (NPI 1962440933, Austin, TX); Century Integrated Partners, Inc (NPI 1447615711, Dallas, TX); Acs Primary Care Physicians Southwest, PA (NPI 1538101019, Gainesville, TX); and 4 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 10, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1982083291) · Data from the CMS NPPES public registry.