WILLIAM A. BUCHHOLZ M.D.
NPI 1356300107
Anesthesiology in Austin, TX
About William A. Buchholz M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM A. BUCHHOLZ M.D. (NPI 1356300107) is an individual anesthesiology provider in Austin, Texas, licensed in Texas (K7254) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with St David's Medical Center, and is a graduate of University Of Texas Medical School At San Antonio (1994).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
William A. Buchholz 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 William Buchholz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Austin, TX 78759
- Reassigned Medicare billing, Texas enrollment
- 840 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 8
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.
St David's Medical Center
Acute Care Hospitals · Austin, TXSt David's South Austin Medical Center
Acute Care Hospitals · Austin, TXRound Rock Medical Center
Acute Care Hospitals · Round Rock, TXNorth Austin Medical Center
Acute Care Hospitals · Austin, TXOther 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 78759
AUSTIN, TX 78759
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 William Buchholz's NPI number?
The NPI number for William Buchholz is 1356300107. It was assigned to this individual provider in the NPPES registry on March 21, 2006.
Where is William Buchholz located?
William Buchholz practices at 8140 N Mopac Expy Suite 3-210, Austin, TX 78759. The listed phone number is (512) 343-2292.
What is William Buchholz's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is William Buchholz enrolled in Medicare?
Yes. William Buchholz 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 William Buchholz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Buchholz reassigns Medicare benefits to Austin Anesthesiology Group, PLLC (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 William Buchholz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Buchholz accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Harbor Health and Sendero Health Plans, Local Nonprofit list William Buchholz 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 William Buchholz affiliated with any hospitals?
According to CMS data, William Buchholz is affiliated with St David's Medical Center, St David's South Austin Medical Center, Round Rock Medical Center and North Austin Medical Center.
When was this NPI record last updated?
The NPPES record for William Buchholz was last updated on February 12, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# William A. Buchholz, M.D. · NPI 1356300107
Anesthesiology physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since March 21, 2006.
## Identity
- **NPI:** 1356300107 (Entity type: Individual)
- **Enumerated:** March 21, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** K7254 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 8140 N MOPAC EXPY, SUITE 3-210, Austin, TX 78759-8837
- **Phone:** (512) 343-2292 · **Fax:** (512) 343-4725
## 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:** Austin Anesthesiology Group, PLLC (NPI 1598724304, Austin, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical School At San Antonio, class of 1994
## Record status
- **NPPES last updated:** February 12, 2009
- **Other identifiers:** Medicaid 1051138-02 (TX); Medicare PIN 86851K (TX); Medicare UPIN G71286 (TX)
---
Source: [NPI Profile](https://npiprofile.com/npi/1356300107) · Data from the CMS NPPES public registry.