NPPES file of Aug 9, 2026

Internal Medicine Physician in Texas

9,175 NPPES records list internal medicine physician with a practice address in Texas, 30 per 100,000 residents, the 42nd highest rate of 51. Houston and Dallas have the most; each record links to the provider's NPI and the Texas license search. Page 117 of 184.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · 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, 1,488

  1. Houston1,488
  2. Dallas956
  3. San Antonio657
  4. Austin606
  5. Fort Worth388

Internal Medicine Physician records in Texas

  1. Thinh Nguyen, M.D.Houston, TX 770731609053750
  2. Thu Nguyen, D.O.Houston, TX 770241134480437
  3. Thuan Nguyen, M.D.Cypress, TX 774291841206703
  4. Thuthuy Nguyen, M.D.Euless, TX 760401467457572
  5. Thuy Nguyen, MDGarland, TX 750421447362488
  6. Thuy NguyenFort Worth, TX 761041578144895
  7. Thuy-Phuong NguyenLongview, TX 756011952715807
  8. Toan Nguyen, MDHouston, TX 770301295118776
  9. Todd Nguyen, M.D.Arlington, TX 760121548249030
  10. Tony Nguyen, MDShenandoah, TX 773841285676023
  11. Trang Nguyen, M.D.Denton, TX 762011831234970
  12. Tri Nguyen, MDDallas, TX 752481427155829
  13. Trinh Nguyen, DOThe Woodlands, TX 773801598152167
  14. Trung Nguyen, MDMarshall, TX 756701932307766
  15. Trung NguyenHouston, TX 770301891482717
  16. Trung Nguyen, D.OKingwood, TX 773391639631492
  17. Van Nguyen, MDDallas, TX 752161144332602
  18. Vinh Nguyen, M.D.Houston, TX 770301821067463
  19. Vivian NguyenAustin, TX 787121750228144
  20. William Nguyen, MDHouston, TX 770271457452757
  21. Xiyu Nguyen, MDGalveston, TX 775551750275798
  22. Long Nguyendo, M.D.Fort Sam Houston, TX 782341285969162
  23. Ambesi NgwaTyler, TX 757011639582174
  24. Samuel Ngwu, MDDallas, TX 752241528144706
  25. Chinedu Ngwudike, MDEl Paso, TX 799251770111932
  26. Jack NiFort Worth, TX 761041992198188
  27. Asad Niazi, MD, MPHKaty, TX 774501972123032
  28. Maryam Niazi, MDAustin, TX 787121033055256
  29. Donald Nicholas, M.D.Desoto, TX 751151245226950
  30. Cody Nichols, M.D.San Marcos, TX 786661295766038
  31. Veronika Nicholson, M.D.Houston, TX 770071740280387
  32. Shelly Nickels, MDSan Antonio, TX 782591891088159
  33. Gabriela Nicola, M.D.Cypress, TX 774291164674628
  34. Stewart Niefield, MDHouston, TX 770271255336871
  35. Stephanie Nielsen, MDFort Worth, TX 762441568923258
  36. Chad Niemeyer, M.D.Houston, TX 770911023303328
  37. Eric Nieto, MDDallas, TX 753901114622735
  38. Yago Nieto, M.D.Houston, TX 770301245243948
  39. Arianna Nieto Meraz, M.D.New Braunfels, TX 781301932546280
  40. Narendra Nigalye, M.D.Brownwood, TX 768011659369056
  41. Rupesh Nigam, MDHouston, TX 770301093010878
  42. Aris Nikas, M.D.San Antonio, TX 782121093781890
  43. Dmitri Nikolaenko, DO, MSAustin, TX 787051033471834
  44. Srikanth Nimmagadda, M.D.Austin, TX 787041477788842
  45. Kameswara Rao Nimmakayala, M.DFort Worth, TX 761041427320514
  46. Joshua Ninan, MDGalveston, TX 775551881588101
  47. Ashutosh Niraj, MDHouston, TX 770361407032634
  48. Polly Niravath, MDHouston, TX 770301710123088
  49. Kodavayour Nirmal, MDGalveston, TX 775551487691572
  50. Abigail Nisan, MDSan Angelo, TX 769031336445956

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Texas ranks 42 of 51 per resident

  1. Mississippi33
  2. North Dakota31
  3. Indiana31
  4. Texas30
  5. Montana29
  6. Oklahoma28
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

82.0% of these records appear in a Medicare file, against 78.7% 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. Texas82.0%
  2. United States78.7%

Internal Medicine Physician records in Texas, measured

  • In a Medicare file7,523 of 9,175 · 82.0% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file6,090 · 66.4% here, 61.4% nationally
  • Not updated in five years or more4,540 · 49.5% here, 55.4% nationally
  • Median graduation year2004 · the 6,088 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

9,175 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Texas: 30 per 100,000 residents against 44 nationally (50 states and D.C.). Houston has 1,488 of them (16%).

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. Florida10,151
  2. Pennsylvania7,300
  3. Illinois7,238
  4. Massachusetts6,825

States with a similar rate per 100,000

  1. Indiana30.7
  2. North Dakota31.3
  3. Montana28.6
  4. Oklahoma27.5

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Pennsylvania7,300
  5. Illinois7,238

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.