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 21 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. Michele Morris-JonesSpecialist1720211923
  2. Lao Moua, MARehabilitation Practitioner1598015232
  3. Jazlyn MoyaBehavior Technician1326993353
  4. Joseph Moza, MDSurgery Physician1356336127
  5. Rosangela Muniz, MS, RDNRegistered Dietitian1154151397
  6. Ricardo MunozCase Manager/Care Coordinator1851597884
  7. Anahi Munoz GMarriage & Family Therapist1336845502
  8. Estera MunteanSpeech-Language Pathologist1376425967
  9. Harris Musafer, M.D.Specialist1619901667
  10. Mallory MuyrongBehavior Technician1184569386
  11. Nakia MylesSpeech-Language Pathologist1336632652
  12. Amy NagelePhysical Therapist1548574270
  13. Sabita Naidu, MDFamily Medicine Physician1952747180
  14. Thomas Najdowski, LCSW,MFTMarriage & Family Therapist1831267848
  15. Tina NarangMarriage & Family Therapist1710115035
  16. Jordan Naranjo, MSMarriage & Family Therapist1003576356
  17. Pushpavathi Narasimhaiah, DDSGeneral Practice Dentistry1912280546
  18. Cynthia NathanielCounselor1447516489
  19. Flora Navarro, DMDDentist1699760421
  20. Julian NavarroBehavior Analyst1083061477
  21. Karla NavarroBehavior Technician1750095733
  22. Anesa NelsonStudent in an Organized Health Care Education/Training Program1093462673
  23. L. Nelson, MDEmergency Medicine Physician1407972656
  24. Mahmoud Nemazee, M.D.Emergency Medicine Physician1801849450
  25. Jacob NemethBehavior Technician1134088578
  26. Jillian NevarezCase Manager/Care Coordinator1417523309
  27. Ruben NevarezRehabilitation Practitioner1972737765
  28. Ernie Nghia, ODOptometrist1740824010
  29. Andrew NgoPharmacist1780085829
  30. Dionne NgoStudent in an Organized Health Care Education/Training Program1649021742
  31. Corey Ngoy, MDPsychiatry Physician1285216739
  32. Ann Nguyen, PHARMDPharmacist1558714725
  33. Christine Nguyen, D.D.S.Dentist1306064829
  34. Doan Nguyen, PHARMDPharmacist1518658848
  35. Douglas Nguyen, D.D.S.Dentist1124246632
  36. Dung Nguyen, MDGeneral Practice Physician1497702336
  37. Jenny Nguyen, RDRegistered Dietitian1457614547
  38. Nathan NguyenBehavior Technician1023974342
  39. Ngoc NguyenPharmacist1215465828
  40. Quan Nguyen, PHARM DPharmacist1205364866
  41. Shannon NguyenBehavior Technician1942158712
  42. Thao Nguyen, PHARM. D.Pharmacist1851706519
  43. Thomas Nguyen, D.D.S.Dentist1912282203
  44. Toni Nguyen, DDSDentist1669403408
  45. Travis NguyenMarriage & Family Therapist1487391017
  46. Tuyet-Nga Nguyen, RPHPharmacist1538437439
  47. Brenda NhevBehavior Technician1689530149
  48. Ralph Nicassio, D.D.S.Dentist1386794733
  49. Nichole NicholasCounselor1932474491
  50. Gregory Nicholson, M.D.Psychiatry Physician1851489868

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.