NPPES file of Aug 9, 2026

Doctors and health care providers in Round Rock, TX

3,815 individual NPPES records list a practice address in Round Rock, 17th of 694 Texas cities. The largest group is behavior technician: 387, 10% of the city's records, against 6% across Texas. Page 18 of 77.

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

The 8 largest groups in Round Rock

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

Round Rock in Texas

  • Rank in Texas17th of 694 cities by records
  • Share of the state0.9% of Texas's records
  • Specialties present25 or more taxonomy codes
  • Top three groups20.6% of all records

Compared with Texas as a whole, Round Rock has 2.8× the state's share of behavior analyst records and 0.45× its share of student in an organized health care education/training program records.

Providers in Round Rock, alphabetically

  1. Nina Di Costanzo, DOStudent in an Organized Health Care Education/Training Program1316706708
  2. David Diaz, M.D.Family Medicine Physician1033106380
  3. Jennifer Diaz, LPCProfessional Counselor1285139840
  4. Monica DiazFamily Nurse Practitioner1326997669
  5. Monika Diaz, PHDClinical Psychologist1326884347
  6. Stacey DiazPhysical Therapy Assistant1932358439
  7. Kyle DickersonMarriage & Family Therapist1366743346
  8. Rebekah DickersonBehavior Technician1740061134
  9. Sylvia Dickey SmithProfessional Counselor1396481040
  10. Tracy DiepPharmacist1104422120
  11. Samantha Dieterich, M.D.Pediatrics Physician1043437940
  12. Jessica Diggs, LCSWSocial Worker1396118055
  13. Jennifer Ding, PHARM.D.Pharmacist1619582954
  14. Kara DinhClinical Neuropsychologist1164807129
  15. Mary DinhNurse Practitioner1720884661
  16. Diane Dinsmore, LCDCAddiction (Substance Use Disorder) Counselor1710510169
  17. Arika DipasqualeRegistered Nurse1730685264
  18. Vijay Divakaran, MDInterventional Cardiology Physician1366695074
  19. Lena Dixit, M.D.Ophthalmology Physician1174816433
  20. Valla Djafari, M.D.Ophthalmology Physician1881648038
  21. Hannah Do, MDFamily Medicine Physician1720582356
  22. Josephine Do, ODOptometrist1467096784
  23. Michael Do, M.D.Diagnostic Radiology Physician1811144405
  24. Matthew DoerflerBehavior Technician1518538453
  25. Richard Doerr, PA-CMedical Physician Assistant1710912076
  26. Stephanie Doggett, PA-CPhysician Assistant1104218676
  27. Meagan DolieslagerSpeech-Language Pathologist1295037497
  28. Charles Dollins, LCDCAddiction (Substance Use Disorder) Counselor1386104560
  29. Lindsey Dominguez, LPCProfessional Counselor1043573868
  30. Ron Dominy, LP, CP, BOCPProsthetist1376943688
  31. Alfred Dooley, ED.D.Psychologist1770679193
  32. Trina Dorrah, M.D.Internal Medicine Physician1326104183
  33. Rebecca Dorsett, M.D.Specialist1932258530
  34. Brianna Dorsey, OTDOccupational Therapist1801727417
  35. Steven Dorsey, MS, LPC-SMental Health Counselor1124417340
  36. Lindsey Doss, LPCMental Health Counselor1649418864
  37. Amena Dossul, M.DPediatrics Physician1326488362
  38. Andrea Dotson, CERTIFICATIONCounselor1992496319
  39. Darrin Dotson, O.D.Optometrist1508831074
  40. Kenedi DoucetStudent in an Organized Health Care Education/Training Program1639918030
  41. Erin Dougher, D.O.Obstetrics & Gynecology Physician1225328636
  42. Jaime Dougherty, MSN, APRN, FNP-BCFamily Nurse Practitioner1124669221
  43. Austin Douglas, LATAthletic Trainer1164071221
  44. Joslinn DouglasBehavior Technician1568093276
  45. Lauren Douglas, M.D.Psychiatry Physician1700147923
  46. Nidhi Dover, PA-CSurgical Physician Assistant1215275094
  47. Cansas DowellBehavior Technician1891677019
  48. Tyler Downing, LPCProfessional Counselor1497334494
  49. Colin Doyle, M.D.Surgery Physician1215355680
  50. Kimberly Dragon Flournoy, LCDCAddiction (Substance Use Disorder) Counselor1912518051

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

Round Rock, Texas appears in the CMS National Plan and Provider Enumeration System with 3,815 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 Round Rock - 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 Round Rock 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 Round Rock is weighted toward Behavior Technician (387 clinicians, followed by Professional Counselor with 225 and Clinical Social Worker with 172). 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, Round Rock reports roughly 12.5 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 Round Rock 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 Round Rock, TX?

There are 3,815 registered healthcare providers in Round Rock, TX, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Round Rock?

The most common specialties in Round Rock are Behavior Technician, Professional Counselor, Clinical Social Worker, Physician Assistant, Physical Therapist. Behavior Technician has the most providers with 387.

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.