DR. ALYXANDRA LIEN BUI DO
NPI 1508354440
Psychiatry & Neurology - Psychiatry in Richardson, TX
About Dr. Alyxandra Lien Bui Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALYXANDRA LIEN BUI DO (NPI 1508354440) is an individual psychiatry provider in Richardson, Texas, licensed in Texas (T6845) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Houston Methodist Baytown Hospital, and maintains 5 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 5
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
Dr. Alyxandra Lien Bui 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
9Medicare enrollment records show Alyxandra Bui reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oklahoma City, OK 73134
- Reassigned Medicare billing, Oklahoma enrollment
- 1,058 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,407 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 1,579 clinicians in this Medicare group
Peoria, IL 61606
- Reassigned Medicare billing, Illinois enrollment
- 157 clinicians in this Medicare group
Peoria, IL 61615
- Reassigned Medicare billing, Illinois and Texas enrollments
- 2,944 clinicians in this Medicare group
Sioux Falls, SD 57104
- Reassigned Medicare billing, Kansas enrollment
- 12 clinicians in this Medicare group
Indianapolis, IN 46237
- Reassigned Medicare billing, Indiana enrollment
- 1,396 clinicians in this Medicare group
Plainfield, IL 60544
- Reassigned Medicare billing, Illinois enrollment
- 381 clinicians in this Medicare group
Ionia, MI 48846
- Reassigned Medicare billing, Michigan enrollment
- 916 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
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Houston Methodist Baytown Hospital
Acute Care Hospitals · Baytown, TXHouston Methodist Sugarland Hospital
Acute Care Hospitals · Sugar Land, TXHouston Methodist Willowbrook Hospital
Acute Care Hospitals · Houston, TXHouston Methodist The Woodlands Hospital
Acute Care Hospitals · The Woodlands, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75080 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Alyxandra Bui's NPI number?
The NPI number for Alyxandra Bui is 1508354440. It was assigned to this individual provider in the NPPES registry on April 26, 2018.
Where is Alyxandra Bui located?
Alyxandra Bui practices at 1920 N Coit Rd Ste 200-178, Richardson, TX 75080. The listed phone number is (469) 835-0246.
What is Alyxandra Bui's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Alyxandra Bui enrolled in Medicare?
Yes. Alyxandra Bui 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 Alyxandra Bui's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alyxandra Bui reassigns Medicare benefits to 9 organizations: Integris Ambulatory Care Corporation (Oklahoma City, OK), Tmh Physician Associates PLLC (Houston, TX), Houston Methodist Specialty Physicians (Houston, TX), Saint Francis Medical Center (Peoria, IL), Osf Multi-Specialty Group (Peoria, IL) 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 Alyxandra Bui's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alyxandra Bui accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 3 other insurers list Alyxandra Bui 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 Alyxandra Bui affiliated with any hospitals?
According to CMS data, Alyxandra Bui is affiliated with Houston Methodist Baytown Hospital, Houston Methodist Sugarland Hospital, Houston Methodist Willowbrook Hospital and Houston Methodist The Woodlands Hospital.
When was this NPI record last updated?
The NPPES record for Alyxandra Bui was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Alyxandra Lien Bui, DO · NPI 1508354440
Psychiatry physician in Richardson, Texas. Individual provider, active in the CMS NPPES registry since April 26, 2018.
## Identity
- **NPI:** 1508354440 (Entity type: Individual)
- **Enumerated:** April 26, 2018
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** T6845 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1920 N COIT RD STE 200-178, Richardson, TX 75080-2832
- **Phone:** (469) 835-0246 · **Fax:** (469) 899-2036
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Integris Ambulatory Care Corporation (NPI 1750333936, Oklahoma City, OK); Tmh Physician Associates PLLC (NPI 1275779225, Houston, TX); Houston Methodist Specialty Physicians (NPI 1902614332, Houston, TX); Saint Francis Medical Center (NPI 1023062312, Peoria, IL); Osf Multi-Specialty Group (NPI 1922445527, Peoria, IL); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** August 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1508354440) · Data from the CMS NPPES public registry.