Doctors and health care providers in Smithtown, NY
1,907 individual NPPES records list a practice address in Smithtown, 37th of 1,009 New York cities. The largest group is clinical social worker: 170, 9% of the city's records, against 5% across New York. Page 9 of 39.
The 8 largest groups in Smithtown
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Smithtown in New York
- Rank in New York37th of 1,009 cities by records
- Share of the state0.4% of New York's records
- Specialties present25 or more taxonomy codes
- Top three groups22.4% of all records
Compared with New York as a whole, Smithtown has 2.3× the state's share of adult health nurse practitioner records and 0.40× its share of student in an organized health care education/training program records.
Providers in Smithtown, alphabetically
- Zachary DavisOphthalmology Physician1093209777
- Judith Davison, NNPCritical Care Neonatal Nurse Practitioner1073636858
- Narinder Dawar, MDInternal Medicine Physician1750651238
- Antonet DawesSocial Worker1942895685
- Brian Dawson, DPMSports Medicine Podiatrist1063763522
- Mark Dayboch, PSY.D.Clinical Psychologist1023136231
- Roseann De Franco, MS, CCC-SLPSpeech-Language Pathologist1083745954
- Jordan DeanSocial Worker1477379782
- Jessica Decker, LMTMassage Therapist1497563571
- Christina Decosta, NPAdult Health Nurse Practitioner1033885736
- Ashley Degroff, LPNLicensed Practical Nurse1902324510
- Jana Deitch, M.D.Surgical Oncology Physician1033343702
- Eugene Dekhtyar, OTR/LPediatric Occupational Therapist1710130794
- Katherine DelantyOccupational Therapist1679245609
- Melinda Delcastillo, MDPsychiatry Physician1073734984
- Justine DeliseSpecialist1467858084
- Mariana Delpin Sosa, DCChiropractor1255140125
- Rodrigo Delrosario, M.D.Emergency Medicine Physician1285705723
- Rachel Demaio, FNPFamily Nurse Practitioner1013402932
- Stephen DemaioPharmacist1881916906
- Jessica Demarco, LMSWSocial Worker1831887389
- John Demarco, RPACPhysician Assistant1487728119
- Dana DemarzoLicensed Practical Nurse1316305675
- Lindsey Denninger, LMSWSocial Worker1477237154
- Ruth Derosa, PH.D.Clinical Psychologist1538290531
- Laura DesilvaMental Health Counselor1851037915
- Vincent Desimone, LCSWClinical Social Worker1598825200
- Heather DestefanoMental Health Counselor1700653474
- Nicole DettlingSocial Worker1659825305
- Ezra Deutsch, M.D.Specialist1356349716
- Joseph Dibernardo, DDSEndodontics1497988752
- Anthony Dicarlo, LMTMassage Therapist1841500238
- Stephanie Dick, MSWSocial Worker1164149381
- Howard Dickter, PHARMD.Pharmacist1710494521
- Joan Didonato, LCSWClinical Social Worker1093780892
- Gregory Digiacomo, PH.D.School Psychologist1477993178
- Joseph Digiovanna, DOFamily Medicine Physician1902124704
- Jennifer Digiovanni, LMSWSocial Worker1184836959
- Collette Dignam, LMSWSocial Worker1447330329
- Michele DilevoHealth Educator1629880968
- Danielle Dillon, PA-CPhysician Assistant1356882336
- Elcid Dilodilo, PAPhysician Assistant1114043080
- Suzanne Dilullo, LCSWClinical Social Worker1184669657
- Kathleen DimartinoClinical Social Worker1851006035
- Jaclyn Dimattei, NPAdult Health Nurse Practitioner1093238222
- Kristina Dimezza, PHYSICIAN ASSISTANTPhysician Assistant1306210216
- Caroline Dineros, R.NHome Health Registered Nurse1790177996
- Francis Dipalo, DOPulmonary Disease Physician1538259965
- Elissa Dipasquale, PHARM.D.Pharmacist1336246081
- Kevin Dipietrantonio, DDSGeneral Practice Dentistry1275710378
How to read this directory
Smithtown, New York appears in the CMS National Plan and Provider Enumeration System with 1,907 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 Smithtown - 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 Smithtown 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 Smithtown is weighted toward Clinical Social Worker (170 clinicians, followed by Social Worker with 135 and Registered Nurse with 122). 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 New York's population, Smithtown reports roughly 9.7 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.
For Smithtown 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 Smithtown, NY?
There are 1,907 registered healthcare providers in Smithtown, NY, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Smithtown?
The most common specialties in Smithtown are Clinical Social Worker, Social Worker, Registered Nurse, Licensed Practical Nurse, Physical Therapist. Clinical Social Worker has the most providers with 170.
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.