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 277 of 1,225.

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

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

The 8 largest groups in Houston

  1. Students in training3,913
  2. Family Nurse Practitioner2,588
  3. Pharmacist2,337
  4. Behavior Technician2,260
  5. Professional Counselor2,158
  6. Physician Assistant1,801
  7. Clinical Social Worker1,660
  8. Speech-Language Pathologist1,497

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. Hoang Dinh, DDSGeneral Practice Dentistry1104901461
  2. Jim Dinh, D.C.Chiropractor1457576498
  3. Kha Dinh, M.D.Critical Care Medicine (Internal Medicine) Physician1811252075
  4. Kim DinhDentist1811440944
  5. Kim-Thu Dinh, D.D.SGeneral Practice Dentistry1982768511
  6. Louis Dinh, PHARMDPharmacist1124615547
  7. Maggie Dinh, PHARM.D.Pharmacist1639309081
  8. Mai Doanh Dinh, PAPhysician Assistant1346648532
  9. Melissa Dinh, NPAcute Care Nurse Practitioner1861820805
  10. My Dinh, DDSGeneral Practice Dentistry1912116237
  11. Phuong Dinh, PHARM.DPharmacist1215221262
  12. Rick Dinh, O.DOptometrist1093841751
  13. Sanh DinhOptometrist1962585711
  14. Theresa Dinh, PAPhysician Assistant1033973607
  15. Thu-Thao Dinh, DCChiropractor1588391320
  16. Tracy DinhPharmacist1225639834
  17. Tuan Dinh, PHARMDPharmacist1891171245
  18. Tue Dinh, M.D.Plastic and Reconstructive Surgery Physician1942246616
  19. Uyen Dinh, RPHPharmacist1548777196
  20. Ziem Dinh, CRNACertified Registered Nurse Anesthetist1326826520
  21. Farnaz Dini, DDSDentist1528407541
  22. Jacob Dinis, MDStudent in an Organized Health Care Education/Training Program1629711486
  23. Tanir Dinis, MDStudent in an Organized Health Care Education/Training Program1497335202
  24. Jenifer Dinis Ballestas, MDMaternal & Fetal Medicine Physician1457609539
  25. Marcie Dinkin, LMSWClinical Social Worker1740532548
  26. Diana Dinn, P.T.Physical Therapist1386791069
  27. Diana Dinnell, PA-CSurgical Physician Assistant1902072150
  28. Colin Dinney, M.D.Urology Physician1700984630
  29. Mark Dinning, APRNEmergency Registered Nurse1689137150
  30. Jose Dino, PHARM-DPharmacist1407184856
  31. Caroline Dinoto, L.P.C., L.M.F.T.Marriage & Family Therapist1336170687
  32. Daniela Dinu, M.D.Neonatal-Perinatal Medicine Physician1841405925
  33. Beverly Dinwiddie, RNFARegistered Nurse First Assistant1689721888
  34. Deborah DinwiddieNurse Practitioner1306279567
  35. Nwamiri DioguMedical Technologist1629175450
  36. John Dioquino, D.D.S.General Practice Dentistry1316972805
  37. Nicholas Dipaola, PHDClinical Laboratory Director (Non-physician)1235523853
  38. Timothy Diperi, MDSurgery Physician1700371366
  39. Adam DipippoOncology Pharmacist1508490954
  40. Azucena DirbaSpeech-Language Assistant1396284329
  41. Rachel DirdenRegistered Nurse1629865498
  42. Rose Dirden, LCDCAddiction (Substance Use Disorder) Counselor1306461231
  43. Kenneth Direkly, M.D.Emergency Medicine Physician1053338756
  44. Chizorbam Diribe, MDStudent in an Organized Health Care Education/Training Program1326781246
  45. Sophia Diribe, BS,RRTCritical Care Registered Respiratory Therapist1396754677
  46. Douglas DirschlOrthopaedic Surgery Physician1588763445
  47. Christopher DischlerNurse Practitioner1568951044
  48. Katherine DiscipioStudent in an Organized Health Care Education/Training Program1700589330
  49. Vicki Discon, CSFASurgical Assistant1790227130
  50. Deniz Dishman, CRNACertified Registered Nurse Anesthetist1679544928

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.