ALISON REILAND EWEN M.D.
NPI 1265694038
Emergency Medicine in Austin, TX
About Alison Reiland Ewen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALISON REILAND EWEN M.D. (NPI 1265694038) is an individual emergency medicine provider in Austin, Texas, licensed in Texas (N9770) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS, is affiliated with St David's Medical Center, and is a graduate of University Of Alabama School Of Medicine (2008).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Alison Reiland Ewen 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 Reassignment
Medicare enrollment records show Alison Ewen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 547 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St David's Medical Center
Acute Care Hospitals · Austin, TXSt David's South Austin Medical Center
Acute Care Hospitals · Austin, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78704 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.
AUSTIN, TX 78704
AUSTIN, TX 78704
AUSTIN, TX 78704
AUSTIN, TX 78704
AUSTIN, TX 78704
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 Alison Ewen's NPI number?
The NPI number for Alison Ewen is 1265694038. It was assigned to this individual provider in the NPPES registry on July 1, 2008. The provider is also known as Alison Marie Reiland M.D..
Where is Alison Ewen located?
Alison Ewen practices at 901 W Ben White Blvd, Austin, TX 78704. The listed phone number is (512) 816-6170.
What is Alison Ewen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Alison Ewen enrolled in Medicare?
Yes. Alison Ewen 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 organization bills Medicare for Alison Ewen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alison Ewen reassigns Medicare benefits to Longhorn Emergency Medical Associates PA (Austin, TX). 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 Alison Ewen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alison Ewen accept?
Health plans from Blue Cross and Blue Shield of Texas list Alison Ewen 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 Alison Ewen affiliated with any hospitals?
According to CMS data, Alison Ewen is affiliated with St David's Medical Center and St David's South Austin Medical Center.
When was this NPI record last updated?
The NPPES record for Alison Ewen was last updated on August 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Alison Reiland Ewen, M.D. · NPI 1265694038
Emergency Medicine physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since July 1, 2008.
## Identity
- **NPI:** 1265694038 (Entity type: Individual)
- **Enumerated:** July 1, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** N9770 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 901 W BEN WHITE BLVD, Austin, TX 78704-6903
- **Phone:** (512) 816-6170
## 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:** Longhorn Emergency Medical Associates PA (NPI 1649669672, Austin, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Alabama School Of Medicine, class of 2008
## Record status
- **NPPES last updated:** August 4, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1265694038) · Data from the CMS NPPES public registry.