NPPES file of Aug 9, 2026

Doctors and health care providers in Houston, TX

61,221 individual NPPES records list a practice address in Houston, 1st of 694 Texas cities. The largest group is students in training: 3,913, 6% of the city's records, against 4% across Texas. Page 279 of 1,225.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Houston

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Houston in Texas

  • Rank in Texas1st of 694 cities by records
  • Share of the state14.2% of Texas's records
  • Specialties present25 or more taxonomy codes
  • Top three groups14.4% of all records
  • Students in training rank2nd of the 10 Texas cities with the most

Compared with Texas as a whole, Houston has 1.9× the state's share of diagnostic radiology physician records and 0.61× its share of physical therapist records.

Providers in Houston, alphabetically

  1. Doan Do, MDFamily Medicine Physician1649420589
  2. Gina Do, O.D.Optometrist1689987661
  3. Hanh DoPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1730067844
  4. Hieu Do, D.D.S.Dentist1346655313
  5. Huy Do, MDFamily Medicine Physician1255918215
  6. Jennie Do, PHARM. D.Pharmacist1043878770
  7. Jennifer DoAcute Care Nurse Practitioner1679940639
  8. Jimmy Do, PHARMDPharmacist1043808371
  9. Julianne Do, ODOptometrist1407984354
  10. Kevin Do, PHARMDPharmacist1093439861
  11. Khanh DoPharmacist1619592664
  12. Khanhly Do, P.A. - CPhysician Assistant1730420894
  13. Khuyen Do, M.D.Clinical Cardiac Electrophysiology Physician1730481516
  14. Kim DoPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1871192088
  15. Kimberly Do, PHARMDPharmacist1063180107
  16. Lauren Do, DCChiropractor1467949701
  17. Lien DoPharmacist1528395373
  18. Lily DoBehavior Technician1194667964
  19. Linh Do, MDUrogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1073976114
  20. Marilyn Do, FNP-CFamily Nurse Practitioner1770967457
  21. Melissa Do, O.D.Optometrist1467991539
  22. Michael DoAnesthesiology Physician1366853509
  23. Natalie DoPharmacist1235012469
  24. Nguyet Do, PA-CPhysician Assistant1528393485
  25. Nhu DoBehavior Technician1811468978
  26. Phuong Nam DoDentist1447428446
  27. Quynh Do, M.D.Family Medicine Physician1114118593
  28. Scott Do, PHARMDPharmacist1619751997
  29. Steven Do, D.O.Internal Medicine Physician1447611124
  30. Thang Do, LSASurgical Assistant1023359031
  31. Thanh Do, M.D.Internal Medicine Physician1083663033
  32. Tien DoStudent in an Organized Health Care Education/Training Program1144910894
  33. Timothy DoPharmacist1235645441
  34. Tony DoPharmacist1386506442
  35. Tracy DoFamily Nurse Practitioner1386138774
  36. Tram DoOptometrist1801122528
  37. Trung Do, PHARM.DPharmacist1922718436
  38. Truong Do, PHARMDPharmacist1114504974
  39. Tuan Do, DMDGeneral Practice Dentistry1316317696
  40. Victoria Do, MDFamily Medicine Physician1992744064
  41. Y Do, M.D.Ophthalmology Physician1376685503
  42. Jean Doak, PH.DCounseling Psychologist1427149772
  43. Alan Doan, PA-CPhysician Assistant1861003030
  44. Allyson Doan, DDSGeneral Practice Dentistry1487573077
  45. Anthony Doan, DDSGeneral Practice Dentistry1932276557
  46. Christine DoanHigh-Risk Obstetric Registered Nurse1104073931
  47. Christopher Doan, O.D., M.S.Optometrist1609279728
  48. Chuck Doan, M.D.Anesthesiology Physician1366425217
  49. Danny Doan, DMDDentist1518332113
  50. Dao DoanPharmacist1881039741

The largest Texas cities

  1. San Antonio37,749
  2. Dallas36,304
  3. Austin26,585
  4. Fort Worth15,511
  5. El Paso11,091

All of Texas →

How to read this directory

Houston, Texas appears in the CMS National Plan and Provider Enumeration System with 61,221 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Houston - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Houston practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Houston is weighted toward Student in an Organized Health Care Education/Training Program (3,913 clinicians, followed by Family Nurse Practitioner with 2,588 and Pharmacist with 2,337). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Texas's population, Houston reports roughly 200.7 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

For Houston patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Houston, TX?

There are 61,221 registered healthcare providers in Houston, TX, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Houston?

The most common specialties in Houston are Student in an Organized Health Care Education/Training Program, Family Nurse Practitioner, Pharmacist, Behavior Technician, Professional Counselor. Student in an Organized Health Care Education/Training Program has the most providers with 3,913.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

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.