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 264 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. Cira Deleon, M.D.Psychiatry Physician1578653275
  2. Irma DeleonLicensed Vocational Nurse1760061733
  3. Julio Deleon, OTROccupational Therapist1689797391
  4. Monica Deleon, LPCProfessional Counselor1376995670
  5. Quinn Deleon, LMTMechanotherapist1487438982
  6. Rachel Deleon, RD, LD, CCTDRegistered Dietitian1922928084
  7. Rosario Deleon, PH.D.Clinical Neuropsychologist1164622809
  8. Thao DeleonAmbulatory Care Pharmacist1003305756
  9. Berta Deleon-Scaglia, MDFamily Medicine Physician1932201134
  10. Pilar Delfierro, LPCProfessional Counselor1881178598
  11. Norma Delgadillo, APRN, AGACNP-BCAdult Health Nurse Practitioner1770113839
  12. Ahrlete Delgado, COTAOccupational Therapy Assistant1245011840
  13. Alejandro Delgado, MDFamily Medicine Physician1285847822
  14. Andrea Delgado, FNP-CFamily Nurse Practitioner1053710772
  15. Celeste DelgadoPhysical Therapy Assistant1881476067
  16. Claudia Delgado, R.N.Registered Nurse1750541926
  17. Dennisse DelgadoPhysical Therapist1265054829
  18. Estefania DelgadoSpeech-Language Assistant1649824988
  19. Gerardo Delgado, CSASurgical Physician Assistant1679361422
  20. Jaclyn DelgadoSpeech-Language Assistant1396423091
  21. Jacquyelyn DelgadoBehavior Technician1841022001
  22. Joe DelgadoRegistered Nurse First Assistant1558803528
  23. Jose Delgado, PA-CSurgical Physician Assistant1366489130
  24. Juliette DelgadoBehavior Technician1992659882
  25. Karen Delgado, M.D.Psychiatry Physician1790368900
  26. Lina DelgadoRegistered Nurse1285556589
  27. Luisinia Delgado, DDSPediatric Dentistry1043532674
  28. Madelynne Delgado, ATCAthletic Trainer1861371494
  29. Marianna Delgado, D.D.S.Endodontics1114277407
  30. Nicholas Delgado, LMSWSocial Worker1326167800
  31. Norma Delgado, LMFTMarriage & Family Therapist1225496698
  32. Reynolds Delgado, M.D.Cardiovascular Disease Physician1720024466
  33. Selene DelgadoAnesthesiologist Assistant1275109878
  34. Stacey Delgado, D.C.Chiropractor1417102922
  35. Gabriela Delgado Daza, DDSEndodontics1326663543
  36. Rayza Delgado Hodges, M.SGenetic Counselor (M.S.)1043698442
  37. Monica Delgado-AlfaroFamily Nurse Practitioner1659121317
  38. Marvin Delgado-Guay, MDGeriatric Medicine (Internal Medicine) Physician1306008552
  39. Karen Delhey, M.D.Urology Physician1235180597
  40. Crysta Delin, M.S., R.DRegistered Dietitian1619379757
  41. Laura Delinois, MS, FAMILY PRIMARY CFamily Nurse Practitioner1689032740
  42. Megan Delisle, M.D.Surgery Physician1063302099
  43. Patrick Delisser, M.DStudent in an Organized Health Care Education/Training Program1558715474
  44. Caitlin DelkSpeech-Language Pathologist1669049268
  45. Nancy Delk, RNRegistered Nurse1255160693
  46. Valerie Della Longa, RDNRegistered Dietitian1407518368
  47. Hannah Dellacroce, MDStudent in an Organized Health Care Education/Training Program1023869567
  48. Kiera DellahoussayeLicensed Vocational Nurse1649746322
  49. Alexandria Dellaringa, BCBA, LBABehavior Analyst1376034108
  50. Jerry Deller, RNRegistered Nurse1881478642

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.