Medical groups in Stony Brook, NY
- Medical groups
- 28
- Multi-specialty
- 7
- Single-specialty
- 21
- More than one site
- 18
- 100+ physicians
- 3
There are 28 medical groups in Stony Brook with a Medicare PAC ID. Stony Brook Internists is the largest, with 320 New York physicians, followed by Stony Brook Children's Service with 148. 39% of Stony Brook groups are independent.
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Stony Brook Internists is the largest medical group in Stony Brook, with 320 physicians
Ranked by physicians with a New York address linked to each group based in Stony Brook. Stony Brook Children's Service is second with 148, and Stony Brook School of Dental Medicine third with 143. 3 Stony Brook groups have 100 or more physicians.
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Sort and filter all 28 Stony Brook medical groups by specialty, parent organization, group size, EHR in use and decision makers in Dmand AI.
Showing 1 to 10 of 28 medical groups in Stony Brook
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Stony Brook University has the most physicians in Stony Brook medical groups, with 1,179 across 17 groups
Dmand AI maps every Stony Brook medical group to its parent organization, up to the health system or platform at the top. 1 parent organizations have two or more Stony Brook medical groups. Each clinician counts once per parent organization.
See every medical group, site and clinician under Stony Brook University
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 28 Stony Brook medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
39% of Stony Brook 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.
Stony Brook medical groups by ownership
- Independent11
- Health system or hospital17
Source: Dmand AI Org Hierarchy Data
14 Stony Brook 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.
Stony Brook medical groups by site of care
- Hospitals14
- Skilled nursing facilities1
- Therapy and rehab centers1
- Behavioral health facilities1
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Behavioral and mental health groups are the most common medical groups in Stony Brook, with 5
Each group is counted once, under its main specialty. Eye care groups are second, with 3, and 7 Stony Brook groups are multi-specialty.
- Behavioral and mental health5
- Eye care3
- Rehabilitation and therapy3
- Neurology and neurosurgery2
- Orthopedics and sports medicine2
- Pathology and laboratory2
- Primary care2
- Radiology and imaging2
- Anesthesia and pain1
- Dental and oral surgery1
- Dermatology1
- Emergency and hospital medicine1
- OB/GYN and women's health1
- Pediatrics1
- General and specialty surgery1
Source: Dmand AI Professional Profile Data
2,357 New York HCPs work in Stony Brook medical groups, 1,191 of them physicians
Each clinician is counted once, across every Stony Brook group they are linked to. Only clinicians with a New York address are counted.
HCPs in Stony Brook medical groups by type
- Physicians (MD, DO)1,191
- Nurses and nurse practitioners363
- Physician assistants193
- Optometrists and opticians164
- Therapists (PT and OT)134
- Other HCPs312
Source: Dmand AI Affiliation Data
Each Stony Brook 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 Stony Brook 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 Stony Brook with a Medicare PAC ID.
FAQ
Frequently asked questions about medical groups in Stony Brook
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 Stony Brook?
There are 28 medical groups based in Stony Brook with a Medicare PAC ID: 7 multi-specialty and 21 single-specialty. 18 of them have more than one site.
What is the largest medical group in Stony Brook?
Stony Brook Internists, with 320 physicians and 517 HCPs with a New York address. Stony Brook Children's Service is second with 148, and Stony Brook School of Dental Medicine is third with 143.
How many Stony Brook medical groups are independent?
11, or 39%, have no larger parent organization in the Dmand AI org hierarchy. 17 belong to a health system or hospital.
How many Stony Brook medical groups practice at a hospital?
14 Stony Brook 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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