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 27 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 O'Brien, L.M.F.T., PH.D.Marriage & Family Therapist1265734503
  2. Joe O'Callaghan, LCSWClinical Social Worker1013431444
  3. James O'Connell, MDInternal Medicine Physician1669443214
  4. Christine O'Connor, NPFamily Nurse Practitioner1164765921
  5. Kylie O'Connor, CNMAdvanced Practice Midwife1083367296
  6. Stephen O'Mahony, MDInternal Medicine Physician1144291162
  7. Michaela O'Neil, DPTPhysical Therapist1811475767
  8. Ada Obidike, M.D.Internal Medicine Physician1366722399
  9. Kathy Obrien, PA-CPhysician Assistant1073846606
  10. Chocolate Ocampo, RPTPhysical Therapist1033457866
  11. Margaret Oconnell, MSED, LCSW CTAIMH-EClinical Social Worker1669098141
  12. Deborah Odonnell, DPTPhysical Therapist1396960639
  13. Enitare Ogula, MDFamily Medicine Physician1548964786
  14. Laura OkaforSpecialist1831963982
  15. Eva Olah, M.D.Obstetrics & Gynecology Physician1508821331
  16. Tiffani Olenik, LCSWClinical Social Worker1033616800
  17. Susana OlivoMarriage & Family Therapist1609761303
  18. Quashante Ollivierre, LMFTMarriage & Family Therapist1194435966
  19. Matthew Olson, DMDGeneral Practice Dentistry1457406225
  20. Julie Olsson, LMFT-AMarriage & Family Therapist1194563205
  21. Jean-Michel Oquet, M.D.Internal Medicine Physician1861988024
  22. Cynthia OrdonezPediatric Occupational Therapist1598491854
  23. Brad Oren, M.D.Ophthalmology Physician1568541761
  24. Lisa Oren, LICSWSchool Counselor1710579636
  25. Jason Orlinick, MDInternal Medicine Physician1356312003
  26. Oxana Orlova, MS, BCATBehavior Analyst1124815675
  27. Kailynn OrtizMental Health Counselor1730008483
  28. Stephen Osika, LPC-AMental Health Counselor1124834445
  29. Kristen Ostrosky, OTR/LOccupational Therapist1033414529
  30. Keith Overland, D.C.Sports Physician Chiropractor1265442834
  31. Lori Overland, M.S. CCCSpeech-Language Pathologist1730209735
  32. Ibsen Oviedo, LMTMassage Therapist1831706464
  33. Britny OwusuBehavior Technician1841121316
  34. Erica Ozanne, APRNFamily Nurse Practitioner1518254812
  35. Huseyin Ozer, MDStudent in an Organized Health Care Education/Training Program1225731383
  36. Robyn Ozovek, C.N.M.Advanced Practice Midwife1669618419
  37. Jeanette Pace, APRNFamily Nurse Practitioner1346957370
  38. Lori Pace, LCSWClinical Social Worker1649713579
  39. Joseph Pachman, M.D.Preventive Medicine/Occupational Environmental Medicine Physician1306978788
  40. Chia-Hua Pai, DMDOrthodontics and Dentofacial Orthopedics Dentistry1740894831
  41. Claudia Pajares Vallejo, M.S.,CCC-SLPSpeech-Language Pathologist1790617512
  42. Jill Paknia, LCSWClinical Social Worker1720144538
  43. Neelu Pal, MDSurgery Physician1346333705
  44. Linda Palermo, LMFT, PH.D.Marriage & Family Therapist1649293416
  45. Cornelia Palladino, PA-CSurgical Physician Assistant1407251671
  46. Angelina PallamPhysical Therapist1447905526
  47. Marybeth Pamias, LADCAddiction (Substance Use Disorder) Counselor1669043550
  48. Vasilios Panagiotidis, RPHPharmacist1083919138
  49. Katharine PanagiotouPhysical Therapist1912641705
  50. Veena Panduranga, M.D.Internal Medicine Physician1750671533

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.