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 162 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. Jessica Caldwell, MA, CCC-SLPSpeech-Language Pathologist1093320194
  2. Jillian Caldwell, PA-CPhysician Assistant1790085553
  3. Johanna CaldwellBehavior Technician1124957147
  4. Kelly Caldwell, MDUrology Physician1306343223
  5. Kimberly Caldwell, NRP-CFamily Nurse Practitioner1841036522
  6. Krystal CaldwellBehavior Technician1528914157
  7. Luvenia CaldwellPhlebotomy Technician1174497549
  8. Meija CaldwellStudent in an Organized Health Care Education/Training Program1851185698
  9. Melanie Caldwell, PAMedical Physician Assistant1134176621
  10. Tasha CaldwellDay Training/Habilitation Specialist1265011522
  11. Stacey Caldwell WebbHome Health Registered Nurse1275034787
  12. Juan Calero, PASurgical Assistant1285787374
  13. Barbara Calhoun, RPHPharmacist1134479777
  14. Cheryl Calhoun, NP-CFamily Nurse Practitioner1356696181
  15. Jeffrey Calhoun, NPFamily Nurse Practitioner1083031884
  16. Melissa CalhounHealth Educator1326841206
  17. Keshia Calhoun-WilliamsHome Health Aide1518326123
  18. Joseph Cali, M.D.Colon & Rectal Surgery Physician1871504225
  19. Farah Calica, PTPhysical Therapist1053638494
  20. Angela Calkins, M.EDBehavior Technician1043957855
  21. Francisco Call Orellana, MDStudent in an Organized Health Care Education/Training Program1952246753
  22. Bryon Callahan, M.D.Emergency Medicine Physician1659717734
  23. Kate Callahan, PA-CPhysician Assistant1154727741
  24. Octavia CallahanHealth & Wellness Coach1326754953
  25. Steven Callahan, PH.D.Clinical Psychologist1275677643
  26. Era Callaway, SLPSpeech-Language Pathologist1235361098
  27. John Callaway, DDSDentist1306063086
  28. Kayla CallawayStudent in an Organized Health Care Education/Training Program1881447985
  29. Susana Calle, M.D.Diagnostic Radiology Physician1003294042
  30. Stella CallegariLicensed Vocational Nurse1093960965
  31. Sandra Callejas, MS FNPCNurse Practitioner1528154499
  32. Saul CallejasHearing Instrument Specialist1821923392
  33. Allison Callender, PA-CPhysician Assistant1063640845
  34. David Callender, M.D.Otolaryngology Physician1518992411
  35. Russell CallenderPhysician Assistant1912003047
  36. Jessica Calleo, PH.D.Clinical Psychologist1144546623
  37. Gabriel Calles, MDDiagnostic Radiology Physician1467841346
  38. Michelle Callier, OCCUPATIONAL,THERAPIPediatric Occupational Therapist1285011841
  39. Ashley Calliham, PTAPhysical Therapy Assistant1679246052
  40. Nicholas Callihan, M.D.Emergency Medicine Physician1821482357
  41. Tamara Callis, MDPediatrics Physician1952588931
  42. Elline CallnerOccupational Therapist1356754246
  43. Lisa Callner, MA,CCC SLPSpeech-Language Pathologist1932212875
  44. Chyna CallowayNurse Practitioner1386263002
  45. Victoria CallowaySpeech-Language Assistant1932500378
  46. Bianca Calo, RN, ACNPNurse Practitioner1184858540
  47. Mary Calomino, DOStudent in an Organized Health Care Education/Training Program1427843614
  48. Kevin Calongne, DDSPeriodontics1306859400
  49. Alexandra Caloudas, PH.D.Counseling Psychologist1629552872
  50. Steve Caloudas, LPCounseling Psychologist1598152977

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.