DR. MARK A. ANTONACCI MD
NPI 1083673016
Emergency Medicine in Fort Sam Houston, TX
About Dr. Mark A. Antonacci Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK A. ANTONACCI MD (NPI 1083673016) is an individual emergency medicine provider in Fort Sam Houston, Texas, licensed in Texas (P4138) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Uniformed Services Uhs Fe Hebert School Of Med (1997).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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)
Dr. Mark A. Antonacci Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mark Antonacci reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Woodway, TX 76712
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Premier Physicians - Ii PA
- 92 clinicians in this Medicare group
Frisco, TX 75033
- Reassigned Medicare billing, Texas enrollment
- 279 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78234 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.
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
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 Mark Antonacci's NPI number?
The NPI number for Mark Antonacci is 1083673016. It was assigned to this individual provider in the NPPES registry on March 20, 2006.
Where is Mark Antonacci located?
Mark Antonacci practices at 3551 Roger Brooke Dr, Fort Sam Houston, TX 78234. The listed phone number is (850) 687-0316.
What is Mark Antonacci's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Antonacci enrolled in Medicare?
Yes. Mark Antonacci is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mark Antonacci's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Antonacci reassigns Medicare benefits to 2 organizations: Premier Physicians-Ii, P.A. (Woodway, TX) and Legacy Urgent Care, PA (Frisco, 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 Mark Antonacci's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Antonacci accept?
Health plans from Blue Cross and Blue Shield of Texas and Harbor Health list Mark Antonacci 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 Mark Antonacci was last updated on December 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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. Mark A. Antonacci, MD · NPI 1083673016
Emergency Medicine physician in Fort Sam Houston, Texas. Individual provider, active in the CMS NPPES registry since March 20, 2006.
## Identity
- **NPI:** 1083673016 (Entity type: Individual)
- **Enumerated:** March 20, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** P4138 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 3551 ROGER BROOKE DR, Fort Sam Houston, TX 78234-4504
- **Phone:** (850) 687-0316
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Premier Physicians-Ii, P.A. (NPI 1801204656, Woodway, TX); Legacy Urgent Care, PA (NPI 1568622272, Frisco, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Uniformed Services Uhs Fe Hebert School Of Med, class of 1997
## Record status
- **NPPES last updated:** December 5, 2024
- **Other identifiers:** Other 01791 (FL); Other 059191709 (AL); Other 059191697 (AL); and 1 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1083673016) · Data from the CMS NPPES public registry.