KRYSTAL ANN BUI DO
NPI 1790427359
Emergency Medicine in San Antonio, TX
About Krystal Ann Bui Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KRYSTAL ANN BUI DO (NPI 1790427359) is an individual emergency medicine provider in San Antonio, Texas, licensed in Washington (OP61628818) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS, is affiliated with Harrison Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
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 and accepts Medicare assignment
Krystal Ann 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
7Medicare enrollment records show Krystal Bui reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Gonzales, TX 78629
- Reassigned Medicare billing, Texas enrollment
- 18 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Texas enrollment
- 1,338 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Texas enrollment
- 1,439 clinicians in this Medicare group
Parkland, WA 98444
- Reassigned Medicare billing, Washington enrollment
- 105 clinicians in this Medicare group
Federal Way, WA 98003
- Reassigned Medicare billing, Washington enrollment
- 190 clinicians in this Medicare group
Tacoma, WA 98405
- Reassigned Medicare billing, Washington enrollment
- 1,526 clinicians in this Medicare group
Arlington, WA 98223
- Reassigned Medicare billing, Washington enrollment
- 519 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Harrison Medical Center
Acute Care Hospitals · Bremerton, WASt Anthony Hospital
Acute Care Hospitals · Gig Harbor, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78229 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.
SAN ANTONIO, TX 78229
SAN ANTONIO, TX 78229
SAN ANTONIO, TX 78229
SAN ANTONIO, TX 78229
SAN ANTONIO, TX 78229
SAN ANTONIO, TX 78229
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 Krystal Bui's NPI number?
The NPI number for Krystal Bui is 1790427359. It was assigned to this individual provider in the NPPES registry on April 12, 2022.
Where is Krystal Bui located?
Krystal Bui practices at 7703 Floyd Curl Dr, San Antonio, TX 78229. The listed phone number is (210) 567-4292.
What is Krystal Bui's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Krystal Bui enrolled in Medicare?
Yes. Krystal 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 Krystal Bui's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Krystal Bui reassigns Medicare benefits to 7 organizations: Gonzales Emergency Partners, PLLC (Gonzales, TX), Concord Medical Group PLLC (Lubbock, TX), Concord Medical Group Of Texas PLLC (Lubbock, TX), Western Washington Emergency Physicians PLLC (Parkland, WA), Northwest Observation Associates PC (Federal Way, WA) and 2 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 Krystal Bui's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Krystal Bui accept?
Health plans from Ambetter Health, Blue Cross and Blue Shield of Texas and Premera Blue Cross Blue Shield of Alaska list Krystal 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 Krystal Bui affiliated with any hospitals?
According to CMS data, Krystal Bui is affiliated with Harrison Medical Center and St Anthony Hospital.
When was this NPI record last updated?
The NPPES record for Krystal Bui was last updated on April 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Krystal Ann Bui, DO · NPI 1790427359
Emergency Medicine physician in San Antonio, Texas. Individual provider, active in the CMS NPPES registry since April 12, 2022.
## Identity
- **NPI:** 1790427359 (Entity type: Individual)
- **Enumerated:** April 12, 2022
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** OP61628818 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 7703 FLOYD CURL DR, San Antonio, TX 78229-3901
- **Phone:** (210) 567-4292
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Gonzales Emergency Partners, PLLC (NPI 1346924008, Gonzales, TX); Concord Medical Group PLLC (NPI 1083630610, Lubbock, TX); Concord Medical Group Of Texas PLLC (NPI 1750790762, Lubbock, TX); Western Washington Emergency Physicians PLLC (NPI 1801352505, Parkland, WA); Northwest Observation Associates PC (NPI 1023539376, Federal Way, WA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** April 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1790427359) · Data from the CMS NPPES public registry.