NPPES file of Aug 9, 2026

Doctors and health care providers in Greenwich, CT

1,184 individual NPPES records list a practice address in Greenwich, 18th of 200 Connecticut cities. The largest group is clinical social worker: 126, 11% of the city's records, against 9% across Connecticut. Page 23 of 24.

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

The 8 largest groups in Greenwich

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Greenwich in Connecticut

  • Rank in Connecticut18th of 200 cities by records
  • Share of the state1.4% of Connecticut's records
  • Specialties present25 or more taxonomy codes
  • Top three groups20.5% of all records

Compared with Connecticut as a whole, Greenwich has 3.4× the state's share of specialist records and 0.48× its share of mental health counselor records.

Providers in Greenwich, alphabetically

  1. Caterina Violi, MDObstetrics & Gynecology Physician1942395777
  2. Lisa Violi, PACPhysician Assistant1023150687
  3. Elissa Violino, MS RD CDN CDERegistered Dietitian1114011392
  4. Louis ViscontiPharmacist1306505706
  5. Katherine Vitale, APRNFamily Nurse Practitioner1740829480
  6. Mark Vitale, MD, MPHOrthopaedic Hand Surgery Physician1013174697
  7. Kaitlyn Vizziello, LMSWSocial Worker1477270288
  8. Michele VolchonokGeneral Practice Dentistry1376116723
  9. Melanie Vollono, BA, MS, MFTMarriage & Family Therapist1124757596
  10. Robert Wachen, DDSGeneral Practice Dentistry1639237605
  11. Andrea Wainer, LCSW-RSocial Worker1649778556
  12. Meagan Walczak, AUD CCCA FAAA ABAAudiologist1457007908
  13. Cathleen Walker, RNC, MA, IBCLCLactation Consultant (Registered Nurse)1710343249
  14. Jamie WallacePhysical Therapist1649520511
  15. Joseph Wallace, D.D.S.Oral and Maxillofacial Surgery (Dentist)1255421012
  16. Jocelyn Walls, LCSWClinical Social Worker1134753999
  17. Denise Walsh, OTROccupational Therapist1871147017
  18. Jessica Walsh, ANPAdult Health Nurse Practitioner1871844233
  19. Jeff Wang, MDReproductive Endocrinology Physician1225258338
  20. Barbara Ward, MDSurgical Oncology Physician1356378426
  21. Caroline WardRegistered Nurse1528652385
  22. Patricia Ward, APRNAdult Health Nurse Practitioner1417159054
  23. Paul Waters, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1811955958
  24. Ashley Watson, LCSWClinical Social Worker1346515582
  25. Renard Watson, BCBABehavior Analyst1326639485
  26. Mary Watts, M.S.Audiologist1851313183
  27. Maia Weed, APRNAdult Health Nurse Practitioner1922378678
  28. David Wei, MDOrthopaedic Hand Surgery Physician1194968321
  29. Michele Weinberg, R.N.Registered Nurse1629325600
  30. Jeffrey Weintraub, M.D.Emergency Medicine Physician1457371098
  31. Rachael Weir, LCSWClinical Social Worker1053049155
  32. Heidi Weiss, LMSWSocial Worker1891348876
  33. Joanne Wekesa, RNRegistered Nurse1649619214
  34. Susan Welch, APRNPediatric Nurse Practitioner1568507556
  35. Caitlin Wells, M.S. CCC-SLP, TSSLDSpeech-Language Pathologist1891133666
  36. Allyson WennerHospitalist Physician1568165553
  37. Jennifer Werely, M.D.Neurology Physician1225265028
  38. Emilie Westhoff, OTR/LOccupational Therapist1912744061
  39. Jean Westhoff, SPEECH-LANGUAGE PATHSpeech-Language Pathologist1417783382
  40. Joanna Whitcup, PHD, LMFTMarriage & Family Therapist1316153422
  41. Kristin WhitmanPharmacist1154866002
  42. Christian Whitney, D.O.Pain Medicine (Anesthesiology) Physician1417121179
  43. Cheryl Wilczak, PSY.DClinical Psychologist1538290432
  44. Carla Williams, M.D.Specialist1073589396
  45. Cheryl Williams, MS, RDRegistered Dietitian1164732509
  46. Debra Wilson, LMSWClinical Social Worker1942062161
  47. James Wilson, MDOphthalmology Physician1851506224
  48. Sydnee Wilson, DPTOrthopedic Physical Therapist1336862929
  49. Thomas Wilson, DDS,MDOral and Maxillofacial Surgery (Dentist)1649298944
  50. Barry Witt, MDReproductive Endocrinology Physician1538109699

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

Greenwich, Connecticut appears in the CMS National Plan and Provider Enumeration System with 1,184 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 Greenwich - 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 Greenwich 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 Greenwich is weighted toward Clinical Social Worker (126 clinicians, followed by Student in an Organized Health Care Education/Training Program with 61 and Physical Therapist with 56). 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, Greenwich reports roughly 32.7 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, Marriage & Family Therapist is the most prominent one with no provider currently listing a Greenwich practice address, a coverage gap Greenwich patients typically fill by traveling to a larger nearby hub.

For Greenwich 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 Greenwich, CT?

There are 1,184 registered healthcare providers in Greenwich, CT, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Greenwich?

The most common specialties in Greenwich are Clinical Social Worker, Student in an Organized Health Care Education/Training Program, Physical Therapist, Internal Medicine Physician, Family Nurse Practitioner. Clinical Social Worker has the most providers with 126.

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.