NPPES file of Aug 9, 2026

Allergy & Immunology (Internal Medicine) Physician in Texas

50 NPPES records list allergy & immunology (internal medicine) physician with a practice address in Texas, 0.2 per 100,000 residents, the 20th highest rate of 47. Houston and Dallas have the most; each record links to the provider's NPI and the Texas license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RA0201X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Houston has the most, 19

  1. Houston19
  2. Dallas5
  3. Austin3
  4. Galveston3
  5. San Antonio3

Allergy & Immunology (Internal Medicine) Physician records in Texas

  1. Rigoberto Acosta, M.D.College Station, TX 778451912024274
  2. Michael Adame, MDSan Antonio, TX 782291730742214
  3. Susan Andrew, MDDickinson, TX 775391154317576
  4. Sara Anvari, M.D.Houston, TX 770301023252798
  5. Sadhana Balasubramanyam, MDHouston, TX 770301134624562
  6. Barbara Baxter, MDDallas, TX 752251720035637
  7. Sundus BhattiHouston, TX 770301326573171
  8. Alan Boyar, M.D.San Antonio, TX 782451295728038
  9. Charles Calais, D.OSan Antonio, TX 782121831416197
  10. Adrian Casillas, MDEl Paso, TX 799361871528125
  11. Xuesong Chen, M.D.Houston, TX 770301679835284
  12. Nicole Christians, MDLeague City, TX 775731528594397
  13. Elisabeth Clayton, MDAustin, TX 787311538435532
  14. Christopher Codispoti, MD, PHDHouston, TX 770301922219211
  15. Karim Dhanani, MDRound Rock, TX 786651912106154
  16. Sharon Gendi, M.D.Cypress, TX 774291326233644
  17. Aasia Ghazi, M.D.Plano, TX 750241386810653
  18. John Grant, MDGalveston, TX 775551700945342
  19. Rebecca Gruchalla, MD PHDDallas, TX 753901023087517
  20. James Haden, M.D.Fort Worth, TX 761041588691125
  21. Sana Hasan, M.D.Houston, TX 770301427305861
  22. Saffana Hassan, M.D.Houston, TX 770081003885807
  23. David Huston, M.D.Houston, TX 770301164510996
  24. Muhammad Imran, MDHouston, TX 770901568692820
  25. Alfred Johnson, D.O.Richardson, TX 750801255343133
  26. David Khan, MDDallas, TX 753901891757688
  27. Rina Lee, MDDallas, TX 752461760078877
  28. Mahboobeh MahdaviniaHouston, TX 770301659514131
  29. Jennifer McCracken, MDGalveston, TX 775551992012470
  30. Joseph McNally, MDCorsicana, TX 751101285608281
  31. Mary Ann Miranda, MDHarker Heights, TX 765481972536597
  32. Johnny Nguyen, DOHouston, TX 770651467834572
  33. Sarah Nicholas, MDHouston, TX 770301619227584
  34. Sebastian Ochoa Gonzalez, M.D.Houston, TX 770301356736763
  35. Julie Patel, M.D.Houston, TX 770821629084397
  36. Ekta Perera, MDHouston, TX 770301083025902
  37. Ward Prentice, PA CDickinson, TX 775391811005317
  38. Narendra Punjabi, MDAustin, TX 787591295740751
  39. James Quinn, M.D.Fort Sam Houston, TX 782341851325237
  40. Pankaj Shah, M.D.Houston, TX 770741710981113
  41. Goutam Shome, M.D.Lubbock, TX 794241962491191
  42. Srividya Sridhara, M.DMurphy, TX 750941477695351
  43. Sanjiv Sur, MDHouston, TX 770301902965320
  44. James Tarbox, MDLubbock, TX 794301700063591
  45. Julia Tripple, M.D.Galveston, TX 775551497045629
  46. Michael Volz, M.D.Austin, TX 787171841225430
  47. Qing Wang, MDFort Hood, TX 765441174023113
  48. Thomas Woehler, M.D.Houston, TX 770071982730719
  49. Albert Wu, MDHouston, TX 770251053721696
  50. Christian Wysocki, M.D., PH.D.Dallas, TX 753901346417078

Source: CMS NPPES, primary taxonomy 207RA0201X: records by practice city and the list of records, file of Aug 9, 2026.

Texas ranks 20 of 47 per resident

  1. New Jersey0.2
  2. Wyoming0.2
  3. Mississippi0.2
  4. Texas0.2
  5. Pennsylvania0.2
  6. Michigan0.2
  7. 50 states and D.C.0.2

Source: CMS NPPES, primary taxonomy 207RA0201X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

90.0% of these records appear in a Medicare file, against 78.6% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Texas90.0%
  2. United States78.6%

Allergy & Immunology (Internal Medicine) Physician records in Texas, measured

  • In a Medicare file45 of 50 · 90.0% here, 78.6% nationally
  • In the CMS Doctors and Clinicians file38 · 76.0% here, 64.0% nationally
  • Not updated in five years or more23 · 46.0% here, 51.0% nationally
  • Median graduation year2003 · the 38 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RA0201X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

50 NPPES records list allergy & immunology (internal medicine) physician (207RA0201X) as their primary taxonomy with a practice address in Texas: 0.2 per 100,000 residents against 0.2 nationally (50 states and D.C.). Houston has 19 of them (38%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. New York61
  2. Maryland30
  3. Missouri28
  4. Florida25

States with a similar rate per 100,000

  1. Pennsylvania0.2
  2. Michigan0.2
  3. New Jersey0.2
  4. Washington0.2

The largest states

  1. California81
  2. New York61
  3. Maryland30
  4. Missouri28
  5. Florida25

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.