NPPES file of Aug 9, 2026

Doctors and health care providers in Norwalk, CA

1,600 individual NPPES records list a practice address in Norwalk, 137th of 812 California cities. The largest group is behavior technician: 193, 12% of the city's records, against 18% across California. Page 25 of 32.

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

Norwalk in California

  • Rank in California137th of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups24% of all records

Compared with California as a whole, Norwalk has 8.1× the state's share of licensed psychiatric technician records and 0.50× its share of addiction (substance use disorder) counselor records.

Providers in Norwalk, alphabetically

  1. Adan Ramirez SalazarDental Assistant1417456971
  2. Antonio RamosBehavior Technician1265307805
  3. Arthur Ramos, M.D.Family Medicine Physician1699712307
  4. Diana Ramos, PHARM.DPharmacist1417235482
  5. Editha Ramos, DDSDentist1881807303
  6. Errol Brent Ramos, DMDDentist1649523499
  7. Jasmin Ramos, RNRegistered Nurse1932056900
  8. Margarita Ramos, LICENSED CSWClinical Social Worker1275661688
  9. Michelle RamosBehavior Technician1437993086
  10. Nayzeth RamosBehavior Technician1659249993
  11. Bishoy RamzyBehavior Technician1700746021
  12. Jessica Randell, DOPsychiatry Physician1285020594
  13. Deisy RangelClinical Social Worker1962667444
  14. Britney Ranker, PSY.D.Psychologist1649038753
  15. Aubrey RansonMarriage & Family Therapist1932403193
  16. Antonia RappStudent in an Organized Health Care Education/Training Program1629616123
  17. Ashley RasconBehavior Technician1184266587
  18. Nadia RaymundoStudent in an Organized Health Care Education/Training Program1174008080
  19. Monique RazoCommunity Health Worker1477008415
  20. Lisa Real, PSYDClinical Psychologist1639585755
  21. Antonio Reantaso, MDPsychiatry Physician1144290545
  22. Dhanalakshmi Reddy, MDPsychiatry Physician1639332364
  23. Usha Reddy, MDPsychiatry Physician1346297272
  24. Sharen Reed-Davis, LPTLicensed Psychiatric Technician1346520236
  25. Shanti Regester, MACPMarriage & Family Therapist1619106325
  26. Kayla Rehm, PAPhysician Assistant1134519408
  27. Edward RemplloPharmacist1174995351
  28. Ezequiel RendonCase Manager/Care Coordinator1942650833
  29. Philip RenoSpecialist1053453753
  30. Alejandra Reyes, BACommunity Health Worker1851795298
  31. Alma Reyes, RNRegistered Nurse1346629391
  32. Joseph Reyes, 15792-RACAddiction (Substance Use Disorder) Counselor1396459343
  33. Michelle ReyesBehavior Technician1922981539
  34. Veronica Reyes, M.S.W.Case Manager/Care Coordinator1114227147
  35. Yasmin ReyesSocial Worker1679296644
  36. Rosa Reynaga, M.D.Internal Medicine Physician1689611311
  37. Steve ReynoldsCase Manager/Care Coordinator1144420944
  38. Yvette ReynosoBehavior Technician1235097296
  39. Joel ReynozaMental Health Counselor1982900171
  40. Atef RezkallaGeneral Practice Dentistry1578631800
  41. Maury RichardsonMental Health Counselor1578702759
  42. Steven Richardson, BSWMental Health Counselor1881857183
  43. Lori RiegertLicensed Psychiatric Technician1629204110
  44. Ronacris RiegoRegistered Nurse1699519728
  45. Christina Rim, M.D.Psychiatry Physician1871647271
  46. Aileen RiosClinical Social Worker1548099351
  47. Giovanny RiosCommunity Health Worker1255671442
  48. Jacqueline RiosSpeech-Language Assistant1255258794
  49. Maria RiosCase Manager/Care Coordinator1891325643
  50. Ross Ritari, RPHPharmacist1992092027

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

How to read this directory

Norwalk, California appears in the CMS National Plan and Provider Enumeration System with 1,600 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 Norwalk - 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 Norwalk 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 Norwalk is weighted toward Behavior Technician (193 clinicians, followed by Case Manager/Care Coordinator with 105 and Student in an Organized Health Care Education/Training Program with 86). 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 California's population, Norwalk reports roughly 4.1 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 California's most common specialties, Behavior Analyst is the most prominent one with no provider currently listing a Norwalk practice address, a coverage gap Norwalk patients typically fill by traveling to a larger nearby hub.

For Norwalk 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 Norwalk, CA?

There are 1,600 registered healthcare providers in Norwalk, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Norwalk?

The most common specialties in Norwalk are Behavior Technician, Case Manager/Care Coordinator, Student in an Organized Health Care Education/Training Program, Clinical Social Worker, Marriage & Family Therapist. Behavior Technician has the most providers with 193.

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.