NPPES file of Aug 9, 2026

Doctors and health care providers in Darien, CT

380 individual NPPES records list a practice address in Darien, 53rd of 200 Connecticut cities. The largest group is clinical social worker: 37, 10% of the city's records, against 9% across Connecticut. Page 6 of 8.

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

Darien in Connecticut

  • Rank in Connecticut53rd of 200 cities by records
  • Share of the state0.5% of Connecticut's records
  • Specialties present25 or more taxonomy codes
  • Top three groups22.4% of all records

Compared with Connecticut as a whole, Darien has 5.1× the state's share of psychologist records.

Providers in Darien, alphabetically

  1. Deborah Nelson, MS, CDNNutritionist1811465891
  2. Patricia Nelson, LCSEClinical Social Worker1740219054
  3. Fredric Newman, M.D.Plastic Surgery Physician1205989571
  4. Jennifer Nielsen, PSYDPsychologist1629587258
  5. Michael Nishi, DDSProsthodontics1275547341
  6. Amy Nucera, M.A., CCC-SLPSpeech-Language Pathologist1316188923
  7. Dana Nuzzo, LMSWSocial Worker1902665052
  8. Vincent O'Halloran, LADCAddiction (Substance Use Disorder) Counselor1326743402
  9. Amy Ogalin, LPCClinical Social Worker1265771471
  10. Karol OrtegaFamily Nurse Practitioner1225861123
  11. Christine OsbornMental Health Counselor1023620184
  12. Leo Otake, M.D., PH.D,Plastic Surgery Physician1770761025
  13. Linda Palmer, OTRPediatric Occupational Therapist1083011290
  14. Constantina PapaioannouPharmacist1992088827
  15. Zeenith Park, APRNFamily Nurse Practitioner1306185202
  16. Yatish Parmar, PHARM. DPharmacist1659912103
  17. David Passaretti, M.D.Plastic Surgery Physician1477606655
  18. Victor Patin, MDPsychiatry Physician1881623544
  19. Rachel Paul, MS, RD, CDNRegistered Dietitian1407232994
  20. Ashley Peace, LPC, LMHCMental Health Counselor1194233726
  21. Colin Pech, DDSDentist1083781355
  22. Kristin Peck, LPCProfessional Counselor1427656768
  23. Cindy Perry, MDPediatrics Physician1679865398
  24. Alex PetridisPhysical Therapist1427544832
  25. Celeste Pociask, M.D.Dermatology Physician1407903214
  26. Janine Popot, M.D.Obstetrics & Gynecology Physician1104847821
  27. David Porrino, PSY.D.Clinical Neuropsychologist1043569288
  28. Alexandra Promis, DPTPhysical Therapist1942643622
  29. Melissa Pulcini-Buttine, PAPhysician Assistant1174946750
  30. Daniel Quinn, LICSWClinical Social Worker1265923197
  31. Shadi Rabadi, DPTPhysical Therapist1912799222
  32. Alexandra RamsteckClinical Psychologist1669889416
  33. Marcella Rand, LMSWSocial Worker1235997008
  34. Michelle Ransom, MS, CCC-SLPSpeech-Language Pathologist1265928261
  35. Sarah Rendell, PH.D., M.A.T.Clinical Psychologist1871968479
  36. Ashi ReneevPharmacist1811279797
  37. Anne Riggs, RD, CDNRegistered Dietitian1285321174
  38. John Rock, DPTPhysical Therapist1336817360
  39. Robert Romano, LCSWClinical Social Worker1376070946
  40. Amanda Rossetti, RDRegistered Dietitian1578417085
  41. Steven Rothenberg, D.M.D.Prosthodontics1841404290
  42. Ethan Rothstein, PH.D.Clinical Psychologist1710305537
  43. Cherise RowanPediatrics Physician1316064843
  44. Loren Rubino, LPCA, ATRPMental Health Counselor1649960717
  45. Madeline Ruffinott, OTOccupational Therapist1669151080
  46. James Rumsey, M.S., P.T.Physical Therapist1235188293
  47. Lauren RussellSpeech-Language Pathologist1407446453
  48. Jason Rutherford, O.D.Optometrist1891109021
  49. Patricia Ryan, PH.D.Clinical Neuropsychologist1396959656
  50. Nura SalamehOptometrist1548670920

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

Darien, Connecticut appears in the CMS National Plan and Provider Enumeration System with 380 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 Darien - 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 Darien 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 Darien is weighted toward Clinical Social Worker (37 clinicians, followed by Physical Therapist with 28 and Mental Health Counselor with 20). 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, Darien reports roughly 10.5 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.

Of Connecticut's most common specialties, Social Worker is the most prominent one with no provider currently listing a Darien practice address, a coverage gap Darien patients typically fill by traveling to a larger nearby hub.

For Darien 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 Darien, CT?

There are 380 registered healthcare providers in Darien, CT, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Darien?

The most common specialties in Darien are Clinical Social Worker, Physical Therapist, Mental Health Counselor, Speech-Language Pathologist, Occupational Therapist. Clinical Social Worker has the most providers with 37.

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.