NPPES file of Aug 9, 2026

Sleep Medicine (Internal Medicine) Physician in Texas

56 NPPES records list sleep medicine (internal medicine) physician with a practice address in Texas, 0.2 per 100,000 residents, the 45th highest rate of 48. Dallas and Houston have the most; each record links to the provider's NPI and the Texas license search. Page 1 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RS0012X · method

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

Dallas has the most, 8

  1. Dallas8
  2. Houston7
  3. Jbsa Lackland5
  4. San Antonio5
  5. Tyler4

Sleep Medicine (Internal Medicine) Physician records in Texas

  1. Sergio Alvarez, M.D.El Paso, TX 799021700843034
  2. James Andry, MDSan Antonio, TX 782291316010986
  3. Strahil Atanasov, M.D.Houston, TX 770691134288921
  4. Eleanor Avery, MDSan Antonio, TX 782291235169574
  5. Genevieve Belgrave, M.D.El Paso, TX 799251649200668
  6. Calli Bertschy, D.O.Houston, TX 770301417489451
  7. Charles Bradshaw, M.D., P.A.Fort Worth, TX 761091104866714
  8. William Burkes, M.D.Beaumont, TX 777071609879378
  9. Ronald Cates, MD PAAthens, TX 757511255425039
  10. Ravindra Chandrashekhar, M.D.Carrollton, TX 750071245422955
  11. Collin Clay, MDJbsa Lackland, TX 782361205332210
  12. James Curlee, D.O.Georgetown, TX 786281932100765
  13. Roberto Diaz, M.D.Corpus Christi, TX 784121851300891
  14. Marie Dibra, MDFrisco, TX 750341659661924
  15. Frederick Dixon, MDSan Marcos, TX 786661023079613
  16. David Dorsey, MDEl Paso, TX 799181780658435
  17. Billy Eden, MDTyler, TX 757011356370464
  18. Nader Ewaida, M.D.North Richland Hills, TX 761821609893452
  19. Nabeel Farah, M.D.Dallas, TX 752311255533501
  20. Jaclyn Faulk, DOJbsa Lackland, TX 782361578093126
  21. William Frey, MDJbsa Lackland, TX 782361427049345
  22. Raghavendra Ghuge, MDTyler, TX 757011891768461
  23. Avie Grunspan, MDSan Antonio, TX 782311881695542
  24. Sajid Haque, M.D.Houston, TX 770301558389924
  25. Werdah Hunain, M.D.Huntsville, TX 773401205442399
  26. Sonam Jaggi, MDCorpus Christi, TX 784111528486933
  27. Andrew Jamieson, M.D.Dallas, TX 752311710980362
  28. Shahzad Jokhio, MDHouston, TX 770821013922970
  29. Rajdeep Kakar, M.D., M.P.H.Plano, TX 750241073530986
  30. Courtland Kouassiaman, MDFort Bliss, TX 799061720508989
  31. Tang Kuang, MDAllen, TX 750131417901224
  32. Victor Lam, M.D.San Antonio, TX 782121316054547
  33. Sabina LinGeorgetown, TX 786281316406408
  34. Shan Luong, M.D.Dallas, TX 753901780908442
  35. Barbara McDougal, M.D.Lubbock, TX 794161427262484
  36. Mauro Alberto Mendez BaylonHouston, TX 770301972956365
  37. Sonya Merrill, MD, PHDDallas, TX 752301316954092
  38. Peter Obesso, D.O.Tyler, TX 757011356577787
  39. Thoris Pan, MDDallas, TX 752461598108730
  40. Aaron Pierce, MDDallas, TX 752461477842896
  41. Amanda Radtke, MDJbsa Lackland, TX 782361215475413
  42. Patricia Ritch, MD, PHDTemple, TX 765081487701363
  43. Rafael Santiago, M.D.San Antonio, TX 782341053305508
  44. Henry Scheuller, M.D.Jbsa Lackland, TX 782361457670796
  45. Zachary Sherman, MDDallas, TX 752511710516612
  46. Amita Shimpi Bhalla, MDHouston, TX 770341043252448
  47. Joyce Shotwell, MDFrisco, TX 750341770586331
  48. Harneet Singh, MDTomball, TX 773751972963866
  49. Amie Stringfellow, MDHouston, TX 770701053565028
  50. Rizwana Sultana, M.D.Galveston, TX 775551699093260

Source: CMS NPPES, primary taxonomy 207RS0012X: records by practice city and the list of records, file of Aug 9, 2026.

Texas ranks 45 of 48 per resident

  1. Florida0.2
  2. Hawaii0.2
  3. Kansas0.2
  4. Texas0.2
  5. Maine0.1
  6. Alaska0.1
  7. 50 states and D.C.0.3

Source: CMS NPPES, primary taxonomy 207RS0012X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

80.4% of these records appear in a Medicare file, against 84.4% 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. Texas80.4%
  2. United States84.4%

Sleep Medicine (Internal Medicine) Physician records in Texas, measured

  • In a Medicare file45 of 56 · 80.4% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file38 · 67.9% here, 70.6% nationally
  • Not updated in five years or more27 · 48.2% here, 43.7% nationally
  • Median graduation year2000 · the 38 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RS0012X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

56 NPPES records list sleep medicine (internal medicine) physician (207RS0012X) as their primary taxonomy with a practice address in Texas: 0.2 per 100,000 residents against 0.3 nationally (50 states and D.C.). Dallas has 8 of them (14%).

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 York57
  2. Pennsylvania58
  3. Ohio53
  4. Michigan52

States with a similar rate per 100,000

  1. Florida0.2
  2. North Carolina0.2
  3. Louisiana0.2
  4. South Carolina0.3

The largest states

  1. California129
  2. Pennsylvania58
  3. New York57
  4. Ohio53
  5. Michigan52

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.