Updated October 2026

Medical groups in Modesto, CA

Medical group directory
Modesto, California

Medical groups: 74
Multi-specialty: 18
Single-specialty: 56
More than one site: 44
100+ physicians: 6

There are 74 medical groups in Modesto with a Medicare PAC ID. Vituity is the largest, with 2,155 California physicians, followed by Vituity with 789. 64% of Modesto groups are independent.

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Vituity is the largest medical group in Modesto, with 2,155 physicians

Ranked by physicians with a California address linked to each group based in Modesto. Vituity is second with 789, and Greater Modesto Medical Surgical Associates third with 331. 6 Modesto groups have 100 or more physicians.

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Medical groups in Modesto, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	VituityModesto · 320 sites	Parent on file	2,155	4,058	Decision makers
2	VituityModesto · 171 sites	Parent on file	789	879	Decision makers
3	Greater Modesto Medical Surgical AssociatesModesto · 75 sites	Parent on file	331	431	Decision makers
4	Hospitalists of Modesto Medical GroupModesto · 11 sites	Parent on file	151	171	Decision makers
5	American Specialty Physicians GroupModesto · 13 sites	-	125	172	Decision makers
6	VituityModesto · 56 sites	Parent on file	108	120	Decision makers
7	Advanced Radiology and Interventional Associates (ARIA)Modesto · 47 sites	-	79	92	Decision makers
8	Yosemite Pathology & Precision PathologyModesto · 5 sites	Parent on file	68	73	Decision makers
9	Stanislaus County Behavioral Health and Recovery ServicesModesto · 29 sites	Parent on file	50	110	Decision makers
10	Altamont Emergency PhysiciansModesto · 3 sites	-	31	62	Decision makers
11	Relevo HealthModesto · 7 sites	Parent on file	31	47	Decision makers
12	Scenic Faculty Medical GroupModesto · 7 sites	-	21	23	Decision makers
13	CEP AmericaModesto · 112 sites	Parent on file	17	25	Decision makers
14	Integrity Wound Physicians Inc.Modesto · 1 site	-	17	19	Decision makers
15	Modesto Surgical AssociatesModesto · 4 sites	-	15	35	Decision makers
16	Valley Heart Associates Medical GroupModesto · 2 sites	-	13	14	Decision makers
17	Valley Orthopedic Bone & JointModesto · 3 sites	-	11	20	Decision makers
18	Hera OB-GYN Medical GroupModesto · 2 sites	-	10	10	Decision makers
19	Family First Medical CareModesto · 3 sites	-	9	30	Decision makers
20	Pulmonary and Critical Care Associates of ModestoModesto · 1 site	-	9	15	Decision makers
21	FHC Medical GroupModesto · 1 site	-	9	10	Decision makers
22	Advanced Radiology and Interventional Associates (ARIA), Inc.Modesto · 6 sites	-	9	9	Decision makers
23	CEP AmericaModesto · 13 sites	Parent on file	7	7	Decision makers
24	Modesto Kidney Medical GroupModesto · 1 site	-	6	6	Decision makers
25	Orangeburg Medical GroupModesto · 1 site	-	6	6	Decision makers
26	Progressive Urgent Care - ModestoModesto · 4 sites	Parent on file	5	8	Decision makers
27	Stanislaus CardiologyModesto · 2 sites	Parent on file	5	8	Decision makers
28	Valley Wound Healing CenterModesto · 3 sites	-	5	8	Decision makers
29	Stanislaus Sleep CenterModesto · 1 site	-	5	6	Decision makers
30	OrthoMed CenterModesto · 2 sites	-	5	5	Decision makers
31	VituityModesto · 14 sites	Parent on file	5	5	Decision makers
32	Central California SurgeryModesto · 3 sites	-	4	15	Decision makers
33	Central Valley Pain ManagementModesto · 1 site	-	4	4	Decision makers
34	Valley Nephrology AssociatesModesto · 2 sites	-	4	4	Decision makers
35	Stanislaus Anesthesia Medical GroupModesto · 1 site	-	3	8	Decision makers
36	Sylvan Eye AssociatesModesto · 2 sites	Parent on file	3	8	Decision makers
37	AFC Urgent Care ModestoModesto · 1 site	Parent on file	3	7	Decision makers
38	Aspen Family Medical Group of ModestoModesto · 2 sites	-	3	7	Decision makers
39	Golden Bear Physical Therapy Rehabilitation & WellnessModesto · 29 sites	Parent on file	2	129	Decision makers
40	VituityModesto · 9 sites	Parent on file	2	4	Decision makers
41	209 Urgent CareModesto · 1 site	Parent on file	2	2	Decision makers
42	CEP AmericaModesto · 14 sites	Parent on file	2	2	Decision makers
43	Duggal Medical CorpModesto · 1 site	-	2	2	Decision makers
44	Jeffrey R. Levin, MDModesto · 1 site	-	2	2	Decision makers
45	Om Medical IncModesto · 1 site	Parent on file	2	2	Decision makers
46	Pacific Infectious DiseasesModesto · 1 site	-	2	2	Decision makers
47	Young MD and Boohar MDModesto · 1 site	-	2	2	Decision makers
48	Modesto Physical MedicineModesto · 1 site	-	1	6	Decision makers
49	Advance Nursing Practice Medical Group IncModesto · 2 sites	-	1	5	Decision makers
50	AIR Physical TherapyModesto · 3 sites	-	1	4	Decision makers

Showing 1 to 10 of 74 medical groups in Modesto

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

Vituity has the most physicians in Modesto medical groups, with 2,995 across 13 groups

Dmand AI maps every Modesto medical group to its parent organization, up to the health system or platform at the top. 3 parent organizations have two or more Modesto medical groups. Among health systems, Tenet Healthcare has the most groups, 2. Each clinician counts once per parent organization.

Parent organizations with the most Modesto medical groups
#	Parent organization	Modesto groups	Physicians	HCPs
1	VituityPhysician staffing company	13	2,995	4,997
2	Tenet HealthcareHealth system	2	336	439
3	Astrana HealthHealth system	2	5	10

Parent organizations with two or more Modesto groups

VituityPhysician staffing company · 13 Modesto medical groups
VituityMedical group · 320 sites
VituityMulti-specialty group · 171 sites
11 more Modesto groups and their practice sites

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Source: Dmand AI Org Hierarchy Data

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Dmand AI maps the owners, administrators and physician leaders at each of the 74 Modesto medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.

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64% of Modesto 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.

Modesto medical groups by ownership

Independent4764%
Health system or hospital45%
Platform or corporate owner1622%
Community or government11%
Other organization68%

Source: Dmand AI Org Hierarchy Data

31 Modesto 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.

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

Primary care groups are the most common medical groups in Modesto, with 28

Each group is counted once, under its main specialty. Emergency and hospital medicine groups are second, with 11, and 18 Modesto groups are multi-specialty.

Source: Dmand AI Professional Profile Data

6,356 California HCPs work in Modesto medical groups, 3,841 of them physicians

Each clinician is counted once, across every Modesto group they are linked to. Only clinicians with a California address are counted.

HCPs in Modesto medical groups by type

Physicians (MD, DO)3,84160%
Physician assistants1,49724%
Nurses and nurse practitioners62710%
Therapists (PT and OT)1613%
Non-clinical and support staff1232%
Other HCPs1072%

Source: Dmand AI Affiliation Data

Each Modesto 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 Modesto medical group directory

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

The directory lists groups based in Modesto with a Medicare PAC ID.

FAQ

Frequently asked questions about medical groups in Modesto

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 Modesto?

There are 74 medical groups based in Modesto with a Medicare PAC ID: 18 multi-specialty and 56 single-specialty. 44 of them have more than one site.

What is the largest medical group in Modesto?

Vituity, with 2,155 physicians and 4,058 HCPs with a California address. Vituity is second with 789, and Greater Modesto Medical Surgical Associates is third with 331.

Which health system has the most medical groups in Modesto?

By physicians, Vituity, with 2,995 across 13 groups, followed by Tenet Healthcare with 336 and Astrana Health with 5.

How many Modesto medical groups are independent?

47, or 64%, have no larger parent organization in the Dmand AI org hierarchy. 4 belong to a health system or hospital and 16 to a physician platform or corporate owner.

How many Modesto medical groups practice at a hospital?

31 Modesto 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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