Updated October 2026

Largest radiology and imaging groups in New York

Medical group directory
New York
Radiology and imaging

Groups: 194
Radiology groups: 194
Radiology specialists: 2,248
Physicians: 3,634
More than one site: 143

There are 194 radiology and imaging groups in New York with a Medicare PAC ID. Kaleida Health is the largest, with 428 physicians.

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Kaleida Health is the largest radiology and imaging group in New York, with 428 physicians

Ranked by physicians with a New York address linked to each group. Southside Faculty Medical Affiliates is second with 311, and St. James Hospital third with 310. 15 New York groups have 100 or more physicians.

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Radiology and imaging groups in New York, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	Kaleida HealthBuffalo · 53 sites	Parent on file	428	712	Decision makers
2	Southside Faculty Medical AffiliatesNew Hyde Park · 93 sites	Parent on file	311	325	Decision makers
3	St. James HospitalHornell · 7 sites	Parent on file	310	416	Decision makers
4	Memorial Sloan Kettering Cancer CenterNew York · 33 sites	Parent on file	255	370	Decision makers
5	Memorial Sloan Kettering Cancer Center at Basking Ridge New JerseyNew York · 20 sites	Parent on file	232	313	Decision makers
6	Lenox Hill RadiologyNew York · 212 sites	Parent on file	209	229	Decision makers
7	Memorial Sloan Kettering Cancer CenterNew York · 22 sites	Parent on file	192	272	Decision makers
8	Weill Cornell Imaging at NewYork-PresbyterianNew York · 17 sites	Parent on file	188	216	Decision makers
9	Empire State RadiologyWest Islip · 229 sites	Parent on file	177	192	Decision makers
10	ColumbiaDoctors/NewYork-Presbyterian Imaging MidtownNew York · 15 sites	Parent on file	174	178	Decision makers
11	Lenox Hill Radiology \| Mid Rockland ImagingNew City · 36 sites	Parent on file	165	180	Decision makers
12	UR Medicine Imaging Sciences (Radiology)Rochester · 18 sites	Parent on file	153	201	Decision makers
13	Columbia University Irving Medical CenterNew York · 16 sites	Parent on file	138	141	Decision makers
14	Zwanger-Pesiri RadiologyLindenhurst · 86 sites	Parent on file	137	140	Decision makers
15	Montefiore Mount Vernon HospitalMount Vernon · 2 sites	Parent on file	101	129	Decision makers
16	Foothills Medical GroupOlean · 17 sites	Parent on file	94	137	Decision makers
17	Maimonides Medical CenterBrooklyn · 8 sites	Parent on file	90	101	Decision makers
18	St. Francis DiagnosticMelville · 13 sites	Parent on file	75	84	Decision makers
19	Rochester General HospitalRochester · 26 sites	Parent on file	73	109	Decision makers
20	Memorial Sloan Kettering Cancer CenterNew York · 11 sites	Parent on file	70	133	Decision makers
21	ColumbiaDoctorsNew York · 8 sites	Parent on file	68	69	Decision makers
22	ECH Physician's GroupElizabethtown · 26 sites	Parent on file	67	99	Decision makers
23	Olean Medical GroupOlean · 16 sites	Parent on file	64	120	Decision makers
24	University Radiology AssociatesSyracuse · 10 sites	Parent on file	62	65	Decision makers
25	Stony Brook RadiologyStony Brook · 9 sites	Parent on file	58	63	Decision makers
26	Albany Medical CenterAlbany · 25 sites	Parent on file	57	64	Decision makers
27	UHS Primary Care WaltonWalton · 13 sites	Parent on file	54	89	Decision makers
28	Main Street RadiologyFlushing · 24 sites	Parent on file	54	63	Decision makers
29	Mount Sinai Doctors on Staten IslandNew York · 9 sites	Parent on file	54	59	Decision makers
30	Sunset Park RadiologyBrooklyn · 8 sites	Parent on file	52	62	Decision makers
31	Olean RadiologyOlean · 10 sites	-	52	54	Decision makers
32	Main Street RadiologyFlushing · 28 sites	Parent on file	50	58	Decision makers
33	CRA Medical ImagingSyracuse · 111 sites	Parent on file	48	57	Decision makers
34	Memorial Nuclear Medicine GroupNew York · 10 sites	Parent on file	47	52	Decision makers
35	White Plains Hospital Physician AssociatesWhite Plains · 6 sites	Parent on file	45	50	Decision makers
36	Capital Imaging AssociatesCohoes · 17 sites	Parent on file	45	45	Decision makers
37	Great Lakes Medical ImagingWilliamsville · 8 sites	-	37	49	Decision makers
38	Southtowns RadiologyHamburg · 10 sites	Parent on file	37	40	Decision makers
39	Invision HealthWilliamsville · 8 sites	-	36	86	Decision makers
40	St. Joseph's ImagingLiverpool · 13 sites	Parent on file	36	40	Decision makers
41	Ramapo Imaging Associates of SuffernSuffern · 3 sites	Parent on file	36	36	Decision makers
42	Radiologic Associates, PCMiddletown · 1 site	Parent on file	34	36	Decision makers
43	Millennium Medical ImagingSaratoga Springs · 59 sites	-	33	38	Decision makers
44	Prospect Hill Radiology Group, PCSyracuse · 4 sites	Parent on file	33	37	Decision makers
45	Great Lakes Medical ImagingWilliamsville · 4 sites	-	31	41	Decision makers
46	St. Lawrence Radiology AssociatesPotsdam · 22 sites	Parent on file	31	33	Decision makers
47	Ulster Radiologic Associates, PCKingston · 3 sites	Parent on file	29	29	Decision makers
48	Hospital for Special SurgeryNew York · 12 sites	Parent on file	28	30	Decision makers
49	West Hudson Imaging AssociatesNewburgh · 2 sites	-	28	28	Decision makers
50	Neurological Specialties of Long IslandGreat Neck · 7 sites	-	27	39	Decision makers

Showing 1 to 10 of 194 radiology and imaging groups in New York

Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data

Kaleida Health has the most physicians in New York radiology and imaging groups, with 528 across 3 groups

Dmand AI maps every medical group to its parent organization, up to the health system or platform at the top. 22 parent organizations have two or more New York radiology and imaging groups. Among health systems, Memorial Sloan Kettering Cancer Center has the most groups, 6. Each clinician counts once per parent organization.

Parent organizations with the most New York radiology and imaging groups
#	Parent organization	New York groups	Physicians	HCPs
1	Kaleida HealthHealth system	3	528	905
2	Memorial Sloan Kettering Cancer CenterHealth system	6	402	674
3	University of Rochester Medical CenterAcademic health system	4	392	550
4	Northwell HealthHealth system	2	317	331
5	RadNetTreatment center company	12	282	304
6	Columbia UniversityAcademic health system	3	177	181
7	Montefiore EinsteinHealth system	3	157	191
8	Rochester Regional HealthHealth system	2	104	142
9	Maimonides Medical CenterHealth system	2	96	109
10	Envision RadiologyPhysician practice platform	2	77	80

Top 10 of 22 parent organizations with two or more New York groups

Kaleida HealthHealth system · 3 New York radiology and imaging groups
Kaleida HealthMulti-specialty group · Buffalo
Foothills Medical GroupMulti-specialty group · Olean
1 more New York groups and their practice sites

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Source: Dmand AI Org Hierarchy Data

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32% of New York radiology and imaging 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.

New York radiology and imaging groups by ownership

Independent6332%
Health system or hospital4825%
Platform or corporate owner3216%
Other organization5126%

Sites of care beyond their own offices

Practice at a hospital93

Practice at a skilled nursing facility10

Practice at a surgery center7

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Source: Dmand AI Org Hierarchy Data

93 New York radiology and imaging groups practice at a hospital site, and 10 at a skilled nursing facility

Sites of care linked to each group in the org hierarchy, beyond its own offices. A group can practice at several kinds of site.

New York radiology and imaging groups by site of care

Hospitals9348%
Skilled nursing facilities105%
Ambulatory surgery centers74%
Behavioral health facilities11%

Clinicians in New York radiology and imaging groups

Radiology specialists2,248

All HCPs4,947

Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data

Brooklyn has the most radiology and imaging groups in New York, with 34

34radiology and imaging groups in Brooklyn

29radiology and imaging groups in New York

6radiology and imaging groups in Flushing

6radiology and imaging groups in Rochester

6radiology and imaging groups in Williamsville

5radiology and imaging groups in Bronx

More New York cities with radiology and imaging groups

Staten Island5
Syracuse5
Rego Park4
Albany3
Buffalo3
Melville3
Olean3
Poughkeepsie3
Watertown3
Bethpage2
Briarcliff Manor2
Kingston2
Middletown2
New Hartford2
New Hyde Park2

Source: Doctors and Clinicians National Downloadable File (CMS)

Each New York radiology and imaging 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 New York radiology and imaging group list

Sources for the data on this page
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 inaccuracy Remove my information

Groups whose main specialty is radiology and imaging and that have a Medicare PAC ID.

FAQ

Frequently asked questions about radiology and imaging groups in New York

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many radiology and imaging groups are in New York?

There are 194 radiology and imaging groups in New York with a Medicare PAC ID. Between them they have 2,248 radiology specialists.

Which companies own the most radiology and imaging groups?

By physicians, Kaleida Health, with 528 across 3 groups, followed by Memorial Sloan Kettering Cancer Center with 402 and University of Rochester Medical Center with 392.

How many New York radiology and imaging groups are independent?

63, or 32%, have no larger parent organization in the Dmand AI org hierarchy. 48 belong to a health system or hospital and 32 to a physician platform or corporate owner.

Why are radiology and imaging listed together?

They share one specialty category in the Dmand AI medical group data. Each group is listed under its main specialty.

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