NPPES file of Aug 9, 2026

Doctors and health care providers in Katy, TX

5,078 individual NPPES records list a practice address in Katy, 12th of 694 Texas cities. The largest group is behavior technician: 903, 18% of the city's records, against 6% across Texas. Page 65 of 102.

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

The 8 largest groups in Katy

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Katy in Texas

  • Rank in Texas12th of 694 cities by records
  • Share of the state1.2% of Texas's records
  • Specialties present25 or more taxonomy codes
  • Top three groups28.5% of all records
  • Behavior Technician rank5th of the 10 Texas cities with the most

Compared with Texas as a whole, Katy has 3× the state's share of behavior technician records and 0.42× its share of physician assistant records.

Providers in Katy, alphabetically

  1. Ben Nguyen, DPTPhysical Therapist1043093065
  2. Brian Nguyen, DOHospitalist Physician1912355983
  3. Carolyn NguyenPharmacist1225630064
  4. Cindy Nguyen, PHARM.D., BCPSPharmacist1114003514
  5. Frank Nguyen, DMDGeneral Practice Dentistry1740868769
  6. Hannah Nguyen, DOPediatrics Physician1336726959
  7. Heather Nguyen, DMDGeneral Practice Dentistry1356039812
  8. Henry Nguyen, LACAcupuncturist1871124941
  9. Hieu Nguyen, DDSGeneral Practice Dentistry1538509625
  10. Hoa Nguyen, ODOptometrist1053362871
  11. Hoa Nguyen, PHARMDPharmacist1932085792
  12. Huy NguyenDentist1164198818
  13. Hy NguyenStudent in an Organized Health Care Education/Training Program1962346007
  14. Irene NguyenBehavior Analyst1891202156
  15. Jackie Nguyen, PHARMDPharmacist1508314147
  16. Jason Nguyen, O.D.Optometrist1629373857
  17. Jimmy Nguyen, D.O.Family Medicine Physician1568827798
  18. Kara NguyenGeneral Practice Dentistry1598444705
  19. Kha Nguyen, PTAPhysical Therapy Assistant1215749361
  20. Kien Anh NguyenObstetrics & Gynecology Physician1043501455
  21. Kim Nguyen, RPHPharmacist1164751848
  22. Kimberly Nguyen, DCChiropractor1386298479
  23. Michael Nguyen, D.D.S., M.S.D.Periodontics1417482779
  24. Minh Nguyen, DDSGeneral Practice Dentistry1710112651
  25. Minhchau Nguyen, DDSGeneral Practice Dentistry1285754713
  26. Ngan Nguyen, MDSurgery Physician1750701710
  27. Ngan Nguyen, O.D.Optometrist1558746065
  28. Ngoc-Loan Nguyen, DPMPodiatrist1639161870
  29. Paula Nguyen, DCChiropractor1598359556
  30. Peter Nguyen, DMDGeneral Practice Dentistry1316294440
  31. Quang Nguyen, DDSGeneral Practice Dentistry1437534047
  32. Quoc Nguyen, O.D.Optometrist1083023881
  33. Quyen Nguyen, MA, BCBA, LBABehavior Analyst1366912891
  34. Quyen Nguyen, OPTICIANOptician1568095271
  35. Quynh Nguyen, PHARM.D.Pharmacist1265187751
  36. Quynh Nguyen, OTDOccupational Therapist1124828637
  37. Richard Nguyen, DDSDentist1710257951
  38. Robinh NguyenBehavior Technician1063354520
  39. Stephanie NguyenPharmacy Technician1518898345
  40. Steven Nguyen, PHARMDPharmacist1861002263
  41. Suzy NguyenPharmacist1710453907
  42. Thanh Nguyen, NPGerontology Nurse Practitioner1881272698
  43. Thao Nguyen, OTAOccupational Therapy Assistant1861149106
  44. Thien Nguyen, M.D.Critical Care Medicine (Internal Medicine) Physician1477872505
  45. Thoi Nguyen, O.D.Optometrist1245652791
  46. Tien NguyenRegistered Nurse1528623568
  47. Tin Nguyen, O.D.Optometrist1538176748
  48. Trang Nguyen, ODOptometrist1710356787
  49. Tri Nguyen, DDSDentist1063745099
  50. Tu Nguyen, DMDGeneral Practice Dentistry1376426833

The largest Texas cities

  1. Houston61,221
  2. San Antonio37,749
  3. Dallas36,304
  4. Austin26,585
  5. Fort Worth15,511

All of Texas →

How to read this directory

Katy, Texas appears in the CMS National Plan and Provider Enumeration System with 5,078 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 Katy - 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 Katy 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 Katy is weighted toward Behavior Technician (903 clinicians, followed by Speech-Language Pathologist with 291 and Family Nurse Practitioner with 253). 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, Katy reports roughly 16.6 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.

Of Texas's most common specialties, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Katy practice address, a coverage gap Katy patients typically fill by traveling to a larger nearby hub.

For Katy 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 Katy, TX?

There are 5,078 registered healthcare providers in Katy, TX, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Katy?

The most common specialties in Katy are Behavior Technician, Speech-Language Pathologist, Family Nurse Practitioner, Professional Counselor, Pharmacist. Behavior Technician has the most providers with 903.

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.