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 265 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. Tracy Delmer, M.S., CCC-SLPSpeech-Language Pathologist1356792188
  2. Holly DeloachMental Health Counselor1043175672
  3. Joe Deloach, O.D.Optometrist1700840964
  4. Rhonda Deloache, DCChiropractor1619087855
  5. Erin DelogeMental Health Counselor1801647805
  6. Olivia DelolmoPhysical Therapist1831374974
  7. Caylin DelongBehavior Technician1841052958
  8. Mona Delong, RNFARegistered Nurse First Assistant1518921915
  9. Jessica DelorenzoProfessional Counselor1023835063
  10. Andrea Ina Delos Santos, DDSDentist1083228696
  11. Annyka Delos SantosFamily Nurse Practitioner1720801194
  12. Oliva Delossantos, ANP/GNPGerontology Nurse Practitioner1255372173
  13. Ebrahim Delpassand, M.D.Nuclear Radiology Physician1912923467
  14. Kathlen Delpit, LCSWClinical Social Worker1831485556
  15. Michael Delsardo, O.D.Optometrist1821106196
  16. Tracy Deltoro, COTAOccupational Therapy Assistant1346508371
  17. Katie Delucia, PA-CPhysician Assistant1679584155
  18. Alfred Delumpa, M.D.Diagnostic Radiology Physician1164733416
  19. Corazon Lauren Delumpa, FNP-CFamily Nurse Practitioner1528486826
  20. Sandra Deluzio, OTOccupational Therapist1144519091
  21. James Delwood, DDSDentist1275556888
  22. Audrey Demand, MDStudent in an Organized Health Care Education/Training Program1841870813
  23. Ralph Demar, LPCProfessional Counselor1245843978
  24. Alicia Demarco Voltz, M.D.Pediatric Critical Care Medicine Physician1376856450
  25. Devyn DemareeObstetrics & Gynecology Physician1649703257
  26. Cheryle Demaria, MSN, BSN, RN, CCMCase Management Registered Nurse1649111410
  27. Peter Demaria, M.D.Medical Oncology Physician1811230873
  28. Michael Demaris, R.PH.Pharmacist1770124711
  29. Glenda Demas, LPCCounselor1912421983
  30. Paula Demasi, RN, CNSClinical Nurse Specialist1043300254
  31. Stephen Dembowski, PT, DPTPhysical Therapist1588242663
  32. Geraldine Demby, CRNACertified Registered Nurse Anesthetist1891893103
  33. Jessica Demby, LPCProfessional Counselor1093291718
  34. Mary Demellier, PH.D.Marriage & Family Therapist1831293281
  35. Kelsy Demelo, DCRehabilitation Chiropractor1346802220
  36. Demetrica Dement, LPC-INTERNProfessional Counselor1568862548
  37. Jasmin Demerson, MDHospitalist Physician1396276713
  38. Curry Demery, R.PH.Pharmacist1699033514
  39. Lashonder Demery, LCDCAddiction (Substance Use Disorder) Counselor1144942939
  40. Sophia DemetriouMental Health Counselor1255089694
  41. Krystel Demeza, NPNurse Practitioner1104340009
  42. Nagi Demian, D.D.S.Oral & Maxillofacial Surgery (D.M.D.)1043249287
  43. Diane Deming, FNPFamily Nurse Practitioner1265564405
  44. Laura Deming, APRNPediatric Nurse Practitioner1437320074
  45. Orhan DemirelBehavior Technician1588417679
  46. Petya Demireva, PHDClinical Neuropsychologist1225491277
  47. Asha Demla, APRNNurse Practitioner1306187794
  48. Vishal Demla, M.D.Emergency Medicine Physician1245469535
  49. Gail Demmler, MDPediatric Infectious Diseases Physician1114007556
  50. Nicole DemoRegistered Nurse1073014635

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.