NPPES file of Aug 9, 2026

Allergy & Immunology Physician in Texas

327 NPPES records list allergy & immunology physician with a practice address in Texas, 1.1 per 100,000 residents, the 25th highest rate of 51. Houston and San Antonio have the most; each record links to the provider's NPI and the Texas license search. Page 5 of 7.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207K00000X · 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, 40

  1. Houston40
  2. San Antonio29
  3. Austin28
  4. Dallas26
  5. Fort Worth11

Allergy & Immunology Physician records in Texas

  1. Stephen Olmstead, DOGarland, TX 750421346298890
  2. Ana Ortiz, MDSan Antonio, TX 782291285737247
  3. Baraa Osman, DOArlington, TX 760051700406469
  4. William Otto, MDAustin, TX 787311912913278
  5. Haley Overstreet, M.D.Cedar Park, TX 786131700107323
  6. Richard Page, M.D.Garland, TX 750401649279670
  7. Pooja Paranjpe, MDGarland, TX 750441922218973
  8. Hetu Parekh, MDAustin, TX 787261669654158
  9. Bijalben PatelSugar Land, TX 774781629656582
  10. Hardik Patel, MDSpring, TX 773791568806214
  11. Naiya Patel, M.D.Arlington, TX 760181740711928
  12. Nikki Patel, M.D.Kyle, TX 786401801030135
  13. Ojas Patel, MDAustin, TX 787461205973583
  14. Prarthana Patel, MDSan Antonio, TX 782291235710302
  15. Jay Patolia, MDMissouri City, TX 774591174020150
  16. Barry Paull, M.D.College Station, TX 778451285625699
  17. Russell Perry, MDBeaumont, TX 777021780770362
  18. Edward Peters, M.D.Austin, TX 787051255342184
  19. Kurt Peters, MDPearland, TX 775841124026752
  20. Sarah Pham, M.D.Galveston, TX 775551801281977
  21. Grant Pickett, MDHouston, TX 770541225526874
  22. Devika Pillay, DOFlower Mound, TX 750221558980656
  23. John Poothullil, M.D.,F.R.C.P,F.A.A.PLake Jackson, TX 775661134102528
  24. Eugene Posnock, M.D.Bedford, TX 760221912965195
  25. Pooja PurswaniGarland, TX 750421306377858
  26. Lakshmi Puvvada, M.DPalestine, TX 758011063595890
  27. Enrique Quintero, MDThe Woodlands, TX 773801265439855
  28. Rafiquddin Rahimi, M.D.Desoto, TX 751151386713329
  29. Jessica Rajan, MDBellaire, TX 774011811127848
  30. Veena Rajashekhar, M.D.Round Rock, TX 786811356342612
  31. Daniel Ramirez, M.D.San Antonio, TX 782291174536593
  32. Daniel Ramirez, M.D.San Antonio, TX 782291871654145
  33. Robert Ramirez, M.D.San Antonio, TX 782291063512713
  34. Vivek Rao, MDOdessa, TX 797611629084504
  35. Hari Reddy, D.O.Allen, TX 750131235199621
  36. Keerthi Reddy, M.D.Fort Worth, TX 762441700296795
  37. Sandeep Reddy, MDDallas, TX 752301922186857
  38. Neha Reshamwala, M.D.Austin, TX 787581780874578
  39. Pardeep Rihal, M.D.Katy, TX 774501982671632
  40. Ray Rodriguez, MDTemple, TX 765081154324366
  41. Robert Rogers, M.D.Fort Worth, TX 761091619970969
  42. Howard Rosenblatt, M.D.Austin, TX 787231326140195
  43. Ernesto Ruiz-Huidobro, MDSouthlake, TX 760921790730273
  44. Nastaran Safdarian, MDDallas, TX 752311144414434
  45. Maryam Saifi, M.DDallas, TX 752341821157942
  46. Leonardo Salazar, MDDickinson, TX 775391871114249
  47. Whitney Salinas, MDDallas, TX 753901770963233
  48. Eric Sandberg, MDHouston, TX 770251427144609
  49. Monica Sandhu, DODallas, TX 752461629415252
  50. Gregg Santilli, M.D.Plano, TX 750931023099082

Source: CMS NPPES, primary taxonomy 207K00000X: records by practice city and the list of records, file of Aug 9, 2026.

Texas ranks 25 of 51 per resident

  1. Ohio1.1
  2. Rhode Island1.1
  3. Alaska1.1
  4. Texas1.1
  5. Delaware1.1
  6. Wisconsin1.1
  7. 50 states and D.C.1.2

Source: CMS NPPES, primary taxonomy 207K00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

83.2% of these records appear in a Medicare file, against 80.0% 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. Texas83.2%
  2. United States80.0%

Allergy & Immunology Physician records in Texas, measured

  • In a Medicare file272 of 327 · 83.2% here, 80.0% nationally
  • In the CMS Doctors and Clinicians file228 · 69.7% here, 65.7% nationally
  • Not updated in five years or more158 · 48.3% here, 57.3% nationally
  • Median graduation year2003 · the 228 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207K00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

327 NPPES records list allergy & immunology physician (207K00000X) as their primary taxonomy with a practice address in Texas: 1.1 per 100,000 residents against 1.2 nationally (50 states and D.C.). Houston has 40 of them (12%).

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 York311
  2. California444
  3. Florida204
  4. Pennsylvania183

States with a similar rate per 100,000

  1. Delaware1.1
  2. Wisconsin1.1
  3. Montana1.1
  4. Rhode Island1.1

The largest states

  1. California444
  2. New York311
  3. Florida204
  4. Pennsylvania183
  5. Illinois162

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.