Medical groups in Smithtown, NY
- Medical groups
- 45
- Multi-specialty
- 11
- Single-specialty
- 34
- More than one site
- 24
- 100+ physicians
- 1
There are 45 medical groups in Smithtown with a Medicare PAC ID. Southwest Suffolk Medical PC is the largest, with 230 New York physicians, followed by St. Catherine of Siena Hospital with 48. 89% of Smithtown groups are independent.
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Southwest Suffolk Medical PC is the largest medical group in Smithtown, with 230 physicians
Ranked by physicians with a New York address linked to each group based in Smithtown. St. Catherine of Siena Hospital is second with 48, and Suffolk Anesthesiology Associates, P.C. third with 37. 1 Smithtown group has 100 or more physicians.
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Sort and filter all 45 Smithtown medical groups by specialty, parent organization, group size, EHR in use and decision makers in Dmand AI.
Showing 1 to 10 of 45 medical groups in Smithtown
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Suffolk Anesthesia Associates has the most physicians in Smithtown medical groups, with 39 across 2 groups
Dmand AI maps every Smithtown medical group to its parent organization, up to the health system or platform at the top. 1 parent organizations have two or more Smithtown medical groups. Each clinician counts once per parent organization.
- Suffolk Anesthesia Associates
- Suffolk Anesthesiology Associates, P.C.
- Suffolk Anesthesiology Associates, P.C.
See every medical group, site and clinician under Suffolk Anesthesia Associates
Org Hierarchy Explorer maps every group, site of care and clinician under the parent, with the leaders at each group.
Source: Dmand AI Org Hierarchy Data
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Dmand AI maps the owners, administrators and physician leaders at each of the 45 Smithtown medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
89% of Smithtown medical groups are independent, with no larger parent organization
A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.
Smithtown medical groups by ownership
- Independent40
- Health system or hospital1
- Platform or corporate owner3
- Other organization1
Source: Dmand AI Org Hierarchy Data
4 Smithtown medical groups practice at a hospital site
Beyond their own offices, groups practice at the sites of care linked to them in the org hierarchy. A group can practice at several kinds of site, so the shares overlap.
Smithtown medical groups by site of care
- Hospitals4
- FQHCs2
- Ambulatory surgery centers1
- Skilled nursing facilities1
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Primary care groups are the most common medical groups in Smithtown, with 16
Each group is counted once, under its main specialty. Behavioral and mental health groups are second, with 6, and 11 Smithtown groups are multi-specialty.
- Primary care16
- Behavioral and mental health6
- Rehabilitation and therapy6
- Podiatry5
- Chiropractic4
- Anesthesia and pain3
- Orthopedics and sports medicine3
- Dermatology1
- OB/GYN and women's health1
Source: Dmand AI Professional Profile Data
825 New York HCPs work in Smithtown medical groups, 429 of them physicians
Each clinician is counted once, across every Smithtown group they are linked to. Only clinicians with a New York address are counted.
HCPs in Smithtown medical groups by type
- Physicians (MD, DO)429
- Nurses and nurse practitioners165
- Behavioral health clinicians75
- Non-clinical and support staff47
- Physician assistants47
- Other HCPs62
Source: Dmand AI Affiliation Data
Each Smithtown medical group profile shows the parent, sites, clinicians and identifiers
- Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
- Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
- Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
- Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
- Parent organizationThe health system, platform or owner above the groupOn every profile
- Every clinician and siteThe full roster and every practice locationWith a free account
- Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
- EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account
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Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data
Sources for the Smithtown medical group directory
| Data on this page | Source |
|---|---|
| Medical groups, specialties and sites | Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data |
| Parent organizations and independence | Dmand AI Org Hierarchy Data |
| Physicians and HCPs | Dmand AI Affiliation Data |
| Group NPI and PAC ID | NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS) |
Data last refreshed October 2026Report an inaccuracyRemove my information
The directory lists groups based in Smithtown with a Medicare PAC ID.
FAQ
Frequently asked questions about medical groups in Smithtown
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
How many medical groups are in Smithtown?
There are 45 medical groups based in Smithtown with a Medicare PAC ID: 11 multi-specialty and 34 single-specialty. 24 of them have more than one site.
What is the largest medical group in Smithtown?
Southwest Suffolk Medical PC, with 230 physicians and 292 HCPs with a New York address. St. Catherine of Siena Hospital is second with 48, and Suffolk Anesthesiology Associates, P.C. is third with 37.
How many Smithtown medical groups are independent?
40, or 89%, have no larger parent organization in the Dmand AI org hierarchy. 1 belong to a health system or hospital and 3 to a physician platform or corporate owner.
How many Smithtown medical groups practice at a hospital?
4 Smithtown groups practice at a hospital site linked to them in the Dmand AI org hierarchy.
How do I find a medical group's NPI or PAC ID?
Each medical group profile lists the group NPI and Medicare PAC ID at the top, with the main address and phone number. The NPI comes from the NPPES NPI Registry and the PAC ID from CMS Medicare enrollment.
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