ANN MARIE BUCHANAN MD
NPI 1639119795
Emergency Medicine - Emergency Medical Services in Austin, TX
About Ann Marie Buchanan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANN MARIE BUCHANAN MD (NPI 1639119795) is an individual emergency medical services provider in Austin, Texas, licensed in Texas (M0364) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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 (PECOS)
Ann Marie Buchanan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Ann Marie Buchanan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 547 clinicians in this Medicare group
Killeen, TX 76549
- Reassigned Medicare billing, Texas enrollment
- 214 clinicians in this Medicare group
Gainesville, TX 76240
- Reassigned Medicare billing, Texas enrollment
- 1,193 clinicians in this Medicare group
Orange, TX 77630
- Reassigned Medicare billing, Texas enrollment
- 205 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 4
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 78705 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.
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 Ann Marie Buchanan's NPI number?
The NPI number for Ann Marie Buchanan is 1639119795. It was assigned to this individual provider in the NPPES registry on June 7, 2006.
Where is Ann Marie Buchanan located?
Ann Marie Buchanan practices at 919 E 32nd St, Austin, TX 78705. The listed phone number is (512) 476-7111.
What is Ann Marie Buchanan's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
Is Ann Marie Buchanan enrolled in Medicare?
Yes. Ann Marie Buchanan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ann Marie Buchanan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Marie Buchanan reassigns Medicare benefits to 4 organizations: Longhorn Emergency Medical Associates PA (Austin, TX), Emergency Associates Of Central Texas PA (Killeen, TX), Acs Primary Care Physicians Southwest, PA (Gainesville, TX) and Emergency Services Of Texas PA (Orange, TX). 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 Ann Marie Buchanan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ann Marie Buchanan accept?
Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Ann Marie Buchanan 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 Ann Marie Buchanan was last updated on May 12, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Ann Marie Buchanan, MD · NPI 1639119795
Emergency Medical Services physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since June 7, 2006.
## Identity
- **NPI:** 1639119795 (Entity type: Individual)
- **Enumerated:** June 7, 2006
- **Primary specialty:** Emergency Medicine - Emergency Medical Services · taxonomy 207PE0004X
- **State license:** M0364 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 919 E 32ND ST, Austin, TX 78705-2703
- **Phone:** (512) 476-7111
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Longhorn Emergency Medical Associates PA (NPI 1649669672, Austin, TX); Emergency Associates Of Central Texas PA (NPI 1215418280, Killeen, TX); Acs Primary Care Physicians Southwest, PA (NPI 1538101019, Gainesville, TX); Emergency Services Of Texas PA (NPI 1174932131, Orange, TX) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 12, 2010
- **Other identifiers:** Medicare ID-Type Unspecified 8D5094 (TX); Medicaid 173337002 (TX); Medicare UPIN I28930 (TX); and 2 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1639119795) · Data from the CMS NPPES public registry.