State Specialty Directory
Allergy & Immunology (Internal Medicine) Physician in TX
Federal CMS data for 43 allergy & immunology (internal medicine) physician providers across TX. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.
43
Providers
Median industry payments
$3,628
43
Allergy & Immunology (Internal Medicine) Physician Providers
in TX
$3,628
Median Industry Payments
per provider (2018–2024)
388
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; disclosure alone establishes neither wrongdoing nor legality.
Allergy & Immunology (Internal Medicine) Physician includes multiple subspecialties with different practice patterns.
Learn more →
Allergy & Immunology (Internal Medicine) Physician Providers — TX
NPPES · Open Payments · Medicare| Provider | City | Medicare Volume | Beneficiaries* | Top Procedure | Industry Payments | Payment Type | Coverage |
|---|---|---|---|---|---|---|---|
| SAADEH, CONSTANTINE M.D. | Amarillo | 173,708 | — | Tocilizumab injection (Actemra) | $64,013 (2018-2024) | — | Very High |
| PRASERTSUNTARASAI, THEERAPOL MD | Lubbock | 36,044 | — | Infliximab infusion (Remicade) | $10,641 (2018-2024) | — | Very High |
| BAXTER, BARBARA MD | Dallas | 22,357 | — | Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg | $6,685 (2018-2024) | — | Very High |
| BIGGS, SARAH MD | Amarillo | 13,711 | — | Allergy immunotherapy preparation | $2,200 (2020-2024) | — | Very High |
| JOHNSON, ALFRED D.O. | Richardson | 12,978 | — | Allergy immunotherapy preparation | $2,325 (2018-2024) | — | Very High |
| SHOME, GOUTAM M.D. | Lubbock | 9,602 | — | Allergy skin test | $24,403 (2018-2024) | — | Very High |
| SARAF, SUNIL M.D. | Pasadena | 4,838 | — | Allergy skin test | $8,401 (2018-2024) | — | Very High |
| VILLARREAL, RAUL M.D. | Live Oak | 4,344 | — | Allergy skin test | $14,690 (2018-2024) | — | Very High |
| OMAR, ASAD MD | El Paso | 3,938 | — | Hospital follow-up visit, moderate complexity | $1,454 (2018-2024) | — | Very High |
| CALAIS, CHARLES D.O | San Antonio | 3,616 | — | Allergy skin test | $3,902 (2021-2024) | — | Very High |
| SRIDHARA, SRIVIDYA M.D | Murphy | 3,611 | — | Allergy skin test | $6,249 (2018-2024) | — | Very High |
| COLE, STEVEN D.O. | Dallas | 3,014 | — | Allergy skin test | $4,134 (2018-2024) | — | Very High |
| SIDDIQUI, MOHAMMAD MD | Beaumont | 2,885 | — | Hospital follow-up visit, moderate complexity | $4,602 (2018-2024) | — | Very High |
| SHAH, PANKAJ M.D. | Houston | 2,789 | — | Critical care, first 30-74 min | $847 (2018-2024) | — | Very High |
| ARFEEN, QAMAR M.D. | Beaumont | 1,811 | — | Allergy immunotherapy preparation | $5,715 (2018-2024) | — | Very High |
| CLAYTON, ELISABETH MD | Austin | 1,669 | — | Allergy skin test | $714 (2020-2024) | — | Very High |
| CASILLAS, ADRIAN MD | El Paso | 1,163 | — | Allergy skin test | $24,566 (2018-2024) | — | Very High |
| MCCRACKEN, JENNIFER MD | Galveston | 822 | — | Allergy skin test | $8,992 (2018-2024) | — | Very High |
| VOLZ, MICHAEL M.D. | Austin | 702 | — | Allergy immunotherapy preparation | $98,489 (2018-2024) | — | Very High |
| WYSOCKI, CHRISTIAN M.D., PH.D. | Dallas | 493 | — | Allergy immunotherapy preparation | $1,358 (2018-2024) | — | Very High |
| PUNJABI, NARENDRA MD | Austin | 428 | — | Office visit, established patient (20-29 min) | $1,639 (2018-2024) | — | Very High |
| ANDREW, SUSAN MD | Dickinson | 388 | — | Allergy skin test | $18,444 (2018-2024) | — | Very High |
| CHRISTIANS, NICOLE MD | League City | 383 | — | Skin allergy test | $3,565 (2018-2024) | — | Very High |
| CALHOUN, WILLIAM MD | Galveston | 370 | — | Lung volume test using sensors | $658,827 (2018-2024) | — | Very High |
| TRIPPLE, JULIA M.D. | Galveston | 137 | — | Office visit, established patient (30-39 min) | $3,628 (2018-2023) | — | Very High |
| KHAN, DAVID MD | Dallas | 110 | — | Office visit, established patient (30-39 min) | $11,128 (2018-2024) | — | Very High |
| MAHDAVINIA, MAHBOOBEH | Houston | 98 | — | Office visit, established patient (30-39 min) | $5,841 (2018-2024) | — | Very High |
| SUR, SANJIV MD | Houston | 52 | — | Office visit, established patient (30-39 min) | $595 (2018-2024) | — | Very High |
| GRUCHALLA, REBECCA MD PHD | Dallas | 47 | — | New patient office visit (45-59 min) | $623 (2018-2024) | — | Very High |
| NGUYEN, JOHNNY DO | Houston | 12 | — | Office visit, established patient (20-29 min) | $1,621 (2019-2024) | — | Very High |
| OSMAN, BARAA DO | Arlington | — | — | — | $19 (2024-2024) | — | Moderate |
| ACOSTA, RIGOBERTO M.D. | College Station | — | — | — | $16 (2022-2022) | — | Moderate |
| CHAMBLISS, JEFFREY MD | Dallas | — | — | — | $2,678 (2018-2024) | — | High |
| PRENTICE, WARD PA C | Dickinson | — | — | — | $6,108 (2021-2024) | — | High |
| WANG, QING MD | Fort Cavazos | — | — | — | $22 (2023-2023) | — | Moderate |
| QUINN, JAMES M.D. | Fort Sam Houston | — | — | — | $0 | — | Low |
| GEORGE, BENJAMIN PA | Fort Worth | — | — | — | $3,610 (2021-2024) | — | High |
| GRANT, JOHN MD | Galveston | — | — | — | $2,327 (2018-2024) | — | High |
| HASSAN, SAFFANA M.D. | Houston | — | — | — | $597 (2018-2021) | — | High |
| HARRISON, LYNDALL MD | Houston | — | — | — | $1,880 (2018-2023) | — | High |
| NICHOLAS, SARAH MD | Houston | — | — | — | $25,517 (2018-2024) | — | High |
| WU, ALBERT MD | Houston | — | — | — | $6,032 (2018-2023) | — | High |
| ADAME, MICHAEL MD | San Antonio | — | — | — | $1,682 (2022-2024) | — | Moderate |
Note: Allergy & Immunology (Internal Medicine) Physician 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.