2026 data CMS NPPES NUCC Taxonomy

Doctors in Greenwich, CT

Compiled from official public sources by the PlainDoctor editorial team.

Active healthcare providers in Greenwich sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

1,162
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Clinical Social Worker
Top specialty
118 providers
Connecticut
State
CT

1,162 healthcare providers across 20 specialties

Greenwich, Connecticut appears in the CMS National Plan and Provider Enumeration System with 1,162 registered healthcare providers spanning 20 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 2023 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 (118 clinicians, followed by Student in an Organized Health Care Education/Training Program with 78 and Physical Therapist with 55). 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 32.1 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.

Within Connecticut, Greenwich ranks #18 of 198 cities tracked by provider count, accounting for 1.4% of the state's registered providers. Of Connecticut's most common specialties, Professional Counselor 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, searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. 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, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

1,162
Providers
20
Specialties
#18
of 198 CT cities
1.4%
of CT providers
32.1
Per 100K (state)

Which specialties are most common in Greenwich

Clinical Social Worker 118
Student in an Organized Health Care Education/Training Program 78
Physical Therapist 55
Internal Medicine Physician 55
Physician Assistant 39
Pharmacist 35
Family Nurse Practitioner 30
Social Worker 26
Registered Nurse 25
Psychiatry Physician 23
Specialist 23
Speech-Language Pathologist 22
Registered Dietitian 22
Mental Health Counselor 22
Orthopaedic Surgery Physician 19
Occupational Therapist 15
Nurse Practitioner 14
General Practice Dentistry 14
Chiropractor 14
Psychologist 14

Healthcare Providers (Page 21)

Name
Nicholas Stroumbakis, M.D.
Urology Physician
John Strugar, MD
Neurological Surgery Physician
Marisa Su, MD
Pediatric Orthopaedic Surgery Physician
Andrew Sullivan, PT
Physical Therapist
Hope Sullivan, PA-C
Medical Physician Assistant
Scott Sullivan, M.D.
Diagnostic Radiology Physician
Kairui Sun, DO
Student in an Organized Health Care Education/Training Program
Miriam Sussman, PA-C
Physician Assistant
Caroline Sutton, DNP
Family Nurse Practitioner
Paul Sygall, M.D
Pain Medicine (Anesthesiology) Physician
Eva Szaniawski, M.D.
Anesthesiology Physician
Alfonso Tagliavia, M.D
Anesthesiology Physician
Katherine Tague, LPCA
Professional Counselor
Cheng-Hung Tai
Gastroenterology Physician
John Tamerin, M.D.
Psychiatry Physician
Jesse Tan
Student in an Organized Health Care Education/Training Program
Rachel Tanowitz, R.D. M.S. C.D.N.
Registered Dietitian
Kristy Tefft, MD
Student in an Organized Health Care Education/Training Program
Helen Temple, M.S.
Genetic Counselor (M.S.)
John Tenbusch, LCSW
Clinical Social Worker
Ruth Theaman, LCSW-R
Clinical Social Worker
Stylianos Theofanidis, MD
Pediatrics Physician
Sara Thies Feldman, LCSW
Clinical Social Worker
Shailin Thomas, MD (AS OF MAY 2022)
Student in an Organized Health Care Education/Training Program
Alison Thompson, M.D.
Pulmonary Disease Physician
Mark Thompson
Physical Therapy Assistant
Lindsay Tiscia
Clinical Social Worker
Erin Tishman, LPC
Clinical Social Worker
Paul Tomaszewski, M.D.
Orthopaedic Surgery Physician
Kiyoko Tomita, M.D.
Internal Medicine Physician
Georgeann Torina, P.A.
Physician Assistant
Angela Tornatore, APRN
Pediatric Nurse Practitioner
Peter Tortora
Podiatrist
Lauren Totaro
Family Nurse Practitioner
Alexandra Touri
Physical Therapist
Jenna Townsend, RN
Registered Nurse
Robert Tramposch, DDS
Dentist
Eman Traynor, D.M.D.,M.S.,L.L.C.
Periodontics
Cynthia Treacy, P.A.
Medical Physician Assistant
Douglas Trepp, D.M.D.
General Practice Dentistry
Cassandra Tribble, M.D
Pain Medicine (Anesthesiology) Physician
Kelsie Trillo, MSN-APRN-FNP-BC
Family Nurse Practitioner
Stephen Trudeau, MD, PHD
Student in an Organized Health Care Education/Training Program
Alison Tseng, DPT
Physical Therapist
Jianhua Tsoi, LAC
Acupuncturist
Kin Tsoi, M.D.
Internal Medicine Physician
Jerry Tsong, M.D.
Ophthalmology Physician
Ai Linh Tu, OTR
Occupational Therapist
Dandan Tu, M.D.
Physical Medicine & Rehabilitation Physician
Ryan Tufts, M.D.
Anesthesiology Physician

Nearby Cities in Connecticut

Other Connecticut cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Greenwich, CT?
There are 1,162 registered healthcare providers in Greenwich, CT, covering 20 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, Physician Assistant. Clinical Social Worker has the most providers with 118.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the PlainDoctor editorial team.