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 170 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. Matthew CareyStudent in an Organized Health Care Education/Training Program1629700356
  2. Megan CareyStudent in an Organized Health Care Education/Training Program1518594365
  3. Michelle Carey-Redic, LCDCAddiction (Substance Use Disorder) Counselor1730475385
  4. Jamie Cargill, M.D.Pediatric Critical Care Medicine Physician1326334228
  5. Kasey Cargill, MD, PHDStudent in an Organized Health Care Education/Training Program1932903549
  6. Aubrey CarhillEndocrinology, Diabetes & Metabolism Physician1508031683
  7. John Caridi, MDNeurological Surgery Physician1447386560
  8. Philip Cariello, LCDCAddiction (Substance Use Disorder) Counselor1437350618
  9. Marisa Carino Mason, MDStudent in an Organized Health Care Education/Training Program1275221780
  10. Adrienne Carl, RNRegistered Nurse1659810562
  11. Frank Carle, M.A., BCBABehavior Analyst1972874329
  12. Diana Carleton, ED.D.Psychologist1083727549
  13. Lesley Carleton, NPCritical Care Medicine (Anesthesiology) Physician1437098712
  14. Jaime CarlileLicensed Vocational Nurse1548887045
  15. Cheryl Carling, COTAOccupational Therapy Assistant1962611798
  16. Maria Carlini, M.D.Infectious Disease Physician1487695672
  17. David Carlisle, LPC, LCDC, NCCProfessional Counselor1760872956
  18. Lorena Carlisle, RNFamily Medicine Physician1952051112
  19. Maria Carlos, MDNeonatal-Perinatal Medicine Physician1174503346
  20. Ronald Carlos, PTAPhysical Medicine & Rehabilitation Physician1710793047
  21. Sara Carlough, PA-CPhysician Assistant1043861503
  22. Micaela Carlsen, AUDAudiologist1861282105
  23. Alice Carlson, ACUPUNCTUREAcupuncturist1407603640
  24. Amy Carlson, MS, RD, LDRegistered Dietitian1760861710
  25. Amy CarlsonElectroneurodiagnostic Specialist/Technologist1568817096
  26. Ann-Marie Carlson, SLPSpeech-Language Pathologist1053523134
  27. Courtney CarlsonRegistered Nurse1376140087
  28. Elizabeth Carlson, SLPSpeech-Language Pathologist1104992767
  29. Erin CarlsonDoula1407543515
  30. Jeffrey Carlson, MDDiagnostic Radiology Physician1538133095
  31. Joanne Carlson, M.S.W.Clinical Social Worker1659428233
  32. Kaitlyn Carlson, MD, MPHStudent in an Organized Health Care Education/Training Program1902427891
  33. Linda CarlsonPhysical Therapist1235216524
  34. Louise Carlson, DMDProsthodontics1760604235
  35. Lynn Carlson, M.D.Diagnostic Radiology Physician1235140971
  36. Marianne Carlson, PSYDClinical Psychologist1003584665
  37. Peter Carlson, M.DEmergency Medicine Physician1548519168
  38. Richard Carlson, MDAnesthesiology Physician1366487456
  39. Sandra CarlsonClinical Social Worker1023162377
  40. Scott Carlson, MDEndocrinology, Diabetes & Metabolism Physician1558899039
  41. Tracy Carlson, M.ED.Mental Health Counselor1326990490
  42. Holly Carlson - Zhao, PHDClinical Neuropsychologist1154876506
  43. Alexandra Carlton, SLP-CCCSpeech-Language Pathologist1841114402
  44. April CarltonPharmacy Technician1316665300
  45. Brittany CarltonDriver1245091594
  46. Carter Carlton, M.D.Urology Physician1811167737
  47. Ray Carlton, RNCase Manager/Care Coordinator1861845703
  48. Rebecca CarltonLactation Consultant (Registered Nurse)1043184278
  49. Samantha Carlton, MDStudent in an Organized Health Care Education/Training Program1841826708
  50. Jesse Carlucci, PTAPhysical Medicine & Rehabilitation Physician1912632548

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.