NPPES file of Aug 9, 2026

Doctors and health care providers in Norwalk, CT

1,993 individual NPPES records list a practice address in Norwalk, 9th of 200 Connecticut cities. The largest group is clinical social worker: 182, 9% of the city's records, against 9% across Connecticut. Page 15 of 40.

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

Norwalk in Connecticut

  • Rank in Connecticut9th of 200 cities by records
  • Share of the state2.4% of Connecticut's records
  • Specialties present25 or more taxonomy codes
  • Top three groups18.6% of all records

Compared with Connecticut as a whole, Norwalk has 3.4× the state's share of surgical physician assistant records and 0.53× its share of professional counselor records.

Providers in Norwalk, alphabetically

  1. Nicole Grywalski, LCSWClinical Social Worker1285282467
  2. Nicole Guanco-Murphy, APRNFamily Nurse Practitioner1871851311
  3. Louis Guariglia, D.D.S.General Practice Dentistry1609967975
  4. Niccole GuarinoDental Hygienist1720474786
  5. Allison Gudis-JacksonSpeech-Language Pathologist1104224245
  6. Jennifer Guevara Bustillo, LMFTMarriage & Family Therapist1013683820
  7. Matthew Guida, MAMental Health Counselor1073887964
  8. Rida Gull, MDInternal Medicine Physician1386376994
  9. Kasandra GuthriePhysical Therapist1033931217
  10. Steven GuzinskiPhysical Therapy Assistant1710594924
  11. Matthew GuzzettiAddiction (Substance Use Disorder) Counselor1598163883
  12. Tenzin Gyalpo, DMDGeneral Practice Dentistry1346095676
  13. Megan Haas, NDNaturopath1366982571
  14. Noah HabermanPhysical Therapist1780554949
  15. Lateef HabibClinical Social Worker1205953783
  16. Hilary Hadden, CPNPPediatric Nurse Practitioner1568672384
  17. Loren Hager, D.C.Chiropractor1336289701
  18. Margaret Haggerty, APRNAdult Health Nurse Practitioner1558584078
  19. Charles Halasz, M.D.Dermatology Physician1538137450
  20. Erika Halbert, LMFTAMarriage & Family Therapist1881422251
  21. William Hale, MDGastroenterology Physician1598736936
  22. Allison HallAthletic Trainer1992213367
  23. Ryan HalloranPhysician Assistant1851917561
  24. Rebecca Haluch, MDStudent in an Organized Health Care Education/Training Program1740082221
  25. Raghda HamedStudent in an Organized Health Care Education/Training Program1942140454
  26. Mary Hamill, DDSDentist1679654990
  27. Mary Hamilton, ATRMental Health Counselor1912197492
  28. Jean Hammel, MDEmergency Medicine Physician1295762102
  29. Deborah Hammer, D.C.Chiropractor1255426623
  30. Warren Hammer, DCChiropractor1245340801
  31. Dianne Hammersley, LCSWMental Health Counselor1942358452
  32. Mercedes HammettClinical Social Worker1457006322
  33. Olivia HammondBehavior Analyst1962393439
  34. Kevin HanPharmacist1609591445
  35. Sung Hyon Han, DMDOral and Maxillofacial Surgery (Dentist)1962902478
  36. Stephanie HannaEmergency Medicine Physician1720321144
  37. Kaoru Harada, M.D.Allergy & Immunology Physician1215383864
  38. Valerie Hardenbergh, PHARMDPharmacist1023492873
  39. Jean Hardy, LCSWClinical Social Worker1215057013
  40. Amy Harel, D.D.S., M.S.Orthodontics and Dentofacial Orthopedics Dentistry1891136503
  41. Vasiliki Harisis, M.D.Internal Medicine Physician1184740516
  42. Verna Harmon, CRNPFamily Nurse Practitioner1689894362
  43. Savashia Harris, MS, LMFTMarriage & Family Therapist1740725183
  44. Noran HassanBehavior Technician1417873654
  45. Drake HastingsSpeech-Language Pathologist1780078527
  46. Nancy HastingsSpeech-Language Pathologist1629699806
  47. Alyssa HavensProfessional Counselor1376260299
  48. Gabriela HayesPsychiatry Physician1326304379
  49. Zhen HePharmacist1497934970
  50. Ana Heberg, MSGenetic Counselor (M.S.)1205969789

The largest Connecticut cities

  1. New Haven9,793
  2. Hartford6,317
  3. Waterbury3,148
  4. Farmington2,993
  5. Bridgeport2,980

All of Connecticut →

How to read this directory

Norwalk, Connecticut appears in the CMS National Plan and Provider Enumeration System with 1,993 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 Clinical Social Worker (182 clinicians, followed by Student in an Organized Health Care Education/Training Program with 102 and Pharmacist with 87). 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 Connecticut's population, Norwalk reports roughly 55.1 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.

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, CT?

There are 1,993 registered healthcare providers in Norwalk, CT, 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 Clinical Social Worker, Student in an Organized Health Care Education/Training Program, Pharmacist, Physical Therapist, Internal Medicine Physician. Clinical Social Worker has the most providers with 182.

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.