Specialty Directory
Emergency Medicine in Fort Sam Houston, TX
Federal CMS data for 58 emergency medicine providers practicing in Fort Sam Houston, TX. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.
58
Providers
Median industry payments
$0
58
Emergency Medicine Providers
in Fort Sam Houston, TX
$0
Median Industry Payments
per provider (2018–2024)
0
Median Medicare Services
fee-for-service claims
How to read this directory: Providers are listed by Medicare service volume, which reflects only
Medicare fee-for-service patients (typically 65+). This does not represent total practice volume.
Industry payments span multiple years and payment types — they are legal and do not indicate wrongdoing.
Emergency Medicine includes multiple subspecialties with different practice patterns.
Learn more →
Showing top 50 of 58 providers, ranked by Medicare service volume.
Emergency Medicine Providers
NPPES · Open Payments · Medicare| Provider | Medicare Volume | Beneficiaries* | Top Procedure | Industry Payments | Payment Type | Coverage |
|---|---|---|---|---|---|---|
| WILLIAMS, JUSTIN M.D. | 556 | 553 | Emergency department visit, moderate complexity | $187 (2019-2024) | Food & Beverage (100%) | Very High |
| THAI, ALEXANDER M.D. | 552 | 543 | Emergency department visit, high complexity | $455 (2023-2024) | Food & Beverage (100%) | Very High |
| POWELL, JACOB D.O. | 540 | 535 | Emergency department visit, high complexity | $337 (2022-2024) | Food & Beverage (100%) | Very High |
| BURGON, RICHARD M.D. | 460 | 451 | Emergency department visit, high complexity | $0 | — | High |
| FLEMING, MARY D.O. | 445 | 426 | Emergency department visit, high complexity | $0 | — | High |
| BALL, ERIC MD | 400 | 357 | Emergency department visit, moderate complexity | $16 (2021-2021) | Food & Beverage (100%) | Very High |
| MEADOWS, SEAN M.D. | 362 | 347 | Emergency department visit, high complexity | $0 | — | High |
| FABER, SHANNON M.D. | 325 | 323 | Emergency department visit, high complexity | $0 | — | High |
| BELCHER, CHRISTOPHER | 291 | 267 | Emergency department visit, high complexity | $25 (2023-2023) | Food & Beverage (100%) | Very High |
| BIRDSONG, SARA M.D. | 240 | 238 | Emergency department visit, high complexity | $0 | — | High |
| EVANS, JACQUELINE MD | 229 | 226 | Emergency department visit, high complexity | $0 | — | High |
| DUFRESNE, GARY DO | 212 | 207 | Emergency department visit, moderate complexity | $0 | — | High |
| ZIEHL, DANIELLE M.D. | 173 | 169 | Emergency department visit, high complexity | $0 | — | High |
| SARCHI, ANDREA D.O. | 154 | 154 | Emergency department visit, high complexity | $0 | — | High |
| GEMMILL, JENNIFER M.D. | 147 | 146 | Emergency department visit, high complexity | $0 | — | High |
| GRUBB, SETH M.D. | 138 | 136 | Emergency department visit, high complexity | $0 | — | Moderate |
| SCHAFFRINNA, ANDREW M.D. | 113 | 111 | Emergency department visit, high complexity | $0 | — | High |
| COLLIER, WILLIAM D.O. | 111 | 108 | Emergency department visit, high complexity | $141 (2018-2018) | Food & Beverage (100%) | Very High |
| NOWADLY, CRAIG M.D. | 104 | 99 | Emergency department visit, high complexity | $0 | — | Moderate |
| FRAWLEY, THOMAS | 83 | 83 | Emergency department visit, high complexity | $0 | — | Moderate |
| POLLEY, CATHERINE MD, MPH | 74 | 72 | Emergency department visit, high complexity | $22 (2018-2018) | Food & Beverage (100%) | Very High |
| ANTONACCI, MARK MD | 66 | 66 | New patient office visit (30-44 min) | $0 | — | High |
| DE LORENZO, ROBERT MD | 56 | 56 | Emergency department visit, high complexity | $1,289 (2018-2024) | Travel (63%) | Very High |
| BAINES, EVAN M.D. | 27 | 27 | Emergency department visit, high complexity | $0 | — | Moderate |
| LOWE, JOSHUA MD | 26 | 26 | Emergency department visit, high complexity | $150 (2024-2024) | Food & Beverage (100%) | High |
| CRAWFORD, DAVID M.D. | 20 | 20 | Emergency department visit, high complexity | $92 (2018-2021) | Food & Beverage (100%) | Very High |
| HUDSON, IAN D.O., M.P.H. | 11 | 11 | Emergency department visit, high complexity | $0 | — | Moderate |
| CHIN, ERIC M.D. | — | — | — | $0 | — | Low |
| HENNESSY, ROBERTO M.D. | — | — | — | $132 (2021-2021) | Food & Beverage (100%) | Moderate |
| DAYMUDE, MARC M.D. | — | — | — | $0 | — | Low |
| HILL, GUYON M.D. | — | — | — | $0 | — | Low |
| HILLIARD, MICHAEL MD | — | — | — | $24 (2018-2021) | Food & Beverage (100%) | Moderate |
| DALTON, WARREN MD | — | — | — | $29 (2024-2024) | Food & Beverage (100%) | Moderate |
| SAMSEY, KATHLEEN MD | — | — | — | $0 | — | Low |
| CRAWFORD, DONALD D.O. | — | — | — | $34 (2021-2021) | Food & Beverage (100%) | Moderate |
| WILSON, DWAYNE M.D. | — | — | — | $0 | — | Low |
| SCHMITZ, GILLIAN M.D. | — | — | — | $136 (2023-2023) | Food & Beverage (100%) | Moderate |
| LONERGAN, TERENCE M.D. | — | — | — | $752 (2020-2023) | Education (60%) | High |
| JACOBSON, ERIC M.D. | — | — | — | $170 (2019-2022) | Food & Beverage (100%) | High |
| HARPER, STEPHEN MD | — | — | — | $307 (2022-2023) | Food & Beverage (100%) | Moderate |
| THOTA, DARSHAN M.D. | — | — | — | $0 | — | Low |
| HARPER, HILLARY M.D. | — | — | — | $14 (2023-2023) | Food & Beverage (100%) | Moderate |
| DILLASHAW, JASON P.A. - C | — | — | — | $0 | — | Low |
| HAND, GREGORY M.D. | — | — | — | $28 (2019-2019) | Food & Beverage (100%) | Moderate |
| LOMBARDO, ROBYN MD | — | — | — | $0 | — | Low |
| MUSCHLER, KAREN D.O. | — | — | — | $0 | — | Low |
| DURGUN, KEVIN MD | — | — | — | $0 | — | Low |
| AKINS, JAMES PA-C | — | — | — | $16 (2024-2024) | Food & Beverage (100%) | Moderate |
| SCOTT, CHAVEZ MD | — | — | — | $0 | — | Low |
| MORAN, MARGARET MD | — | — | — | $0 | — | Low |
Note: Emergency Medicine encompasses multiple subspecialties with different practice patterns.
Differences in payment amounts and procedure volumes may reflect subspecialty focus
rather than practice quality. Consider viewing individual profiles for full context.
By Practice Pattern
Emergency Medicine encompasses multiple practice patterns. Comparing providers within the same pattern provides more meaningful context.
Mixed Practice (26)
| Provider | Medicare Volume | Industry Payments |
|---|---|---|
| WILLIAMS, JUSTIN | 556 | $187 |
| THAI, ALEXANDER | 552 | $455 |
| POWELL, JACOB | 540 | $337 |
| BURGON, RICHARD | 460 | $0 |
| FLEMING, MARY | 445 | $0 |
| BALL, ERIC | 400 | $16 |
| MEADOWS, SEAN | 362 | $0 |
| FABER, SHANNON | 325 | $0 |
| BELCHER, CHRISTOPHER | 291 | $25 |
| BIRDSONG, SARA | 240 | $0 |
General Practice (23)
| Provider | Medicare Volume | Industry Payments |
|---|---|---|
| CHIN, ERIC | 0 | $0 |
| HENNESSY, ROBERTO | 0 | $132 |
| DAYMUDE, MARC | 0 | $0 |
| HILL, GUYON | 0 | $0 |
| HILLIARD, MICHAEL | 0 | $24 |
| DALTON, WARREN | 0 | $29 |
| SAMSEY, KATHLEEN | 0 | $0 |
| CRAWFORD, DONALD | 0 | $34 |
| WILSON, DWAYNE | 0 | $0 |
| SCHMITZ, GILLIAN | 0 | $136 |
Clinical Cardiology (1)
| Provider | Medicare Volume | Industry Payments |
|---|---|---|
| ANTONACCI, MARK | 66 | $0 |