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 19 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. Carol Rubeo, PMHNPPsychiatric/Mental Health Nurse Practitioner1184484537
  2. Geraldine Rucquoi, MSGenetic Counselor (M.S.)1558350058
  3. Milevie Ruiz Burgos, RNRegistered Nurse1720845290
  4. Alice Rusk, M.D.Neurology Physician1508971318
  5. Meghan Ryan, NNP-BCNeonatal Nurse Practitioner1851611297
  6. Nancy Ryan, MS RD CDE CD NRegistered Dietitian1407966922
  7. Rosemary RyanOrthodontics and Dentofacial Orthopedics Dentistry1326542408
  8. James Sabetta, M.D.Specialist1669508057
  9. Julia Sabetta, M.D.Specialist1255356184
  10. Marcia Sage, LCSWClinical Social Worker1043465818
  11. Sneha Saha, MDHospitalist Physician1972246346
  12. Christopher Sahler, M.D.Physical Medicine & Rehabilitation Physician1295058972
  13. Jasmine SahniPharmacotherapy Pharmacist1568029551
  14. Rayhan Saiani, MDCardiovascular Disease Physician1811494651
  15. Erez Salik, MDDiagnostic Radiology Physician1306819149
  16. Jason Salomon, PASurgical Physician Assistant1275784068
  17. Jennifer Salop, LMSWSocial Worker1982374195
  18. Stephen Salzer, M.D.Otolaryngology Physician1508860859
  19. Elizabeth Sammarco, RPHPharmacist1194383885
  20. Marianne SampayoSpecialist1154296226
  21. Linda Sandiaes, LCSWClinical Social Worker1538662721
  22. Jesus Santiago, PASurgical Physician Assistant1215044672
  23. Ariana Savovic, PHARMDPharmacist1497115828
  24. Erica Saypol, PH.D.Clinical Psychologist1215205778
  25. Salvatore ScalisiPharmacist1841715687
  26. Dante ScarnatiStudent in an Organized Health Care Education/Training Program1700725595
  27. Nancy Scarpelli, PHARMDPharmacist1821606260
  28. Neal Schamberg, M.D.Gastroenterology Physician1841458759
  29. Ariana SchanzerStudent in an Organized Health Care Education/Training Program1508616418
  30. Michael Schechter, MDObstetrics & Gynecology Physician1841217486
  31. Nicole ScherfSurgical Physician Assistant1528668498
  32. Jessica Schilero, L.M.S.WSocial Worker1710388558
  33. Steven Schiz, M.DPediatrics Physician1528039013
  34. Linda Schlapfer, LMFTMarriage & Family Therapist1710193347
  35. Marcia SchlechterClinical Social Worker1346332962
  36. Megan Schmeiler, LCSWClinical Social Worker1609477611
  37. Marcie Schneider, M.D.Pediatric Adolescent Medicine Physician1497843197
  38. Rachel SchneiderClinical Social Worker1942948286
  39. Edward Schork, PH.D.Clinical Psychologist1811948441
  40. Suzanne Schuster, MSWSocial Worker1184217614
  41. Ilanna Schwalbe, MA, OTR, CHTHand Occupational Therapist1083785505
  42. Matthew Scott, DOAdult Medicine Physician1144859612
  43. Armand Sebastian, MDPediatrics Physician1932789005
  44. Shiva Seejore, PA-CPhysician Assistant1386314748
  45. Charles Seelig, M.D.Internal Medicine Physician1215958129
  46. Emily Segal, LCSWClinical Social Worker1902046709
  47. Sara Seidelmann, M.D.Cardiovascular Disease Physician1710277843
  48. Raymond Sekiguchi, MD PHDFamily Medicine Physician1609934975
  49. Alan Selkin, M.D.Gastroenterology Physician1508912759
  50. Bettina Sementilli, LCAT, ATR-BCArt Therapist1003531393

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.