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.
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
- Caterina Violi, MDObstetrics & Gynecology Physician1942395777
- Lisa Violi, PACPhysician Assistant1023150687
- Elissa Violino, MS RD CDN CDERegistered Dietitian1114011392
- Louis ViscontiPharmacist1306505706
- Katherine Vitale, APRNFamily Nurse Practitioner1740829480
- Mark Vitale, MD, MPHOrthopaedic Hand Surgery Physician1013174697
- Kaitlyn Vizziello, LMSWSocial Worker1477270288
- Michele VolchonokGeneral Practice Dentistry1376116723
- Melanie Vollono, BA, MS, MFTMarriage & Family Therapist1124757596
- Robert Wachen, DDSGeneral Practice Dentistry1639237605
- Andrea Wainer, LCSW-RSocial Worker1649778556
- Meagan Walczak, AUD CCCA FAAA ABAAudiologist1457007908
- Cathleen Walker, RNC, MA, IBCLCLactation Consultant (Registered Nurse)1710343249
- Jamie WallacePhysical Therapist1649520511
- Joseph Wallace, D.D.S.Oral and Maxillofacial Surgery (Dentist)1255421012
- Jocelyn Walls, LCSWClinical Social Worker1134753999
- Denise Walsh, OTROccupational Therapist1871147017
- Jessica Walsh, ANPAdult Health Nurse Practitioner1871844233
- Jeff Wang, MDReproductive Endocrinology Physician1225258338
- Barbara Ward, MDSurgical Oncology Physician1356378426
- Caroline WardRegistered Nurse1528652385
- Patricia Ward, APRNAdult Health Nurse Practitioner1417159054
- Paul Waters, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1811955958
- Ashley Watson, LCSWClinical Social Worker1346515582
- Renard Watson, BCBABehavior Analyst1326639485
- Mary Watts, M.S.Audiologist1851313183
- Maia Weed, APRNAdult Health Nurse Practitioner1922378678
- David Wei, MDOrthopaedic Hand Surgery Physician1194968321
- Michele Weinberg, R.N.Registered Nurse1629325600
- Jeffrey Weintraub, M.D.Emergency Medicine Physician1457371098
- Rachael Weir, LCSWClinical Social Worker1053049155
- Heidi Weiss, LMSWSocial Worker1891348876
- Joanne Wekesa, RNRegistered Nurse1649619214
- Susan Welch, APRNPediatric Nurse Practitioner1568507556
- Caitlin Wells, M.S. CCC-SLP, TSSLDSpeech-Language Pathologist1891133666
- Allyson WennerHospitalist Physician1568165553
- Jennifer Werely, M.D.Neurology Physician1225265028
- Emilie Westhoff, OTR/LOccupational Therapist1912744061
- Jean Westhoff, SPEECH-LANGUAGE PATHSpeech-Language Pathologist1417783382
- Joanna Whitcup, PHD, LMFTMarriage & Family Therapist1316153422
- Kristin WhitmanPharmacist1154866002
- Christian Whitney, D.O.Pain Medicine (Anesthesiology) Physician1417121179
- Cheryl Wilczak, PSY.DClinical Psychologist1538290432
- Carla Williams, M.D.Specialist1073589396
- Cheryl Williams, MS, RDRegistered Dietitian1164732509
- Debra Wilson, LMSWClinical Social Worker1942062161
- James Wilson, MDOphthalmology Physician1851506224
- Sydnee Wilson, DPTOrthopedic Physical Therapist1336862929
- Thomas Wilson, DDS,MDOral and Maxillofacial Surgery (Dentist)1649298944
- Barry Witt, MDReproductive Endocrinology Physician1538109699
The largest Connecticut cities
- New Haven9,793
- Hartford6,317
- Waterbury3,148
- Farmington2,993
- Bridgeport2,980
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.