Medical groups in Corona, CA
- Medical groups
- 79
- Multi-specialty
- 12
- Single-specialty
- 67
- More than one site
- 39
There are 79 medical groups in Corona with a Medicare PAC ID. Hospitalist Group of Montebello is the largest, with 92 California physicians, followed by Corona Regional Medical Center with 87. 85% of Corona groups are independent.
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Hospitalist Group of Montebello is the largest medical group in Corona, with 92 physicians
Ranked by physicians with a California address linked to each group based in Corona. Corona Regional Medical Center is second with 87, and Corona Anesthesia Group Inc third with 60.
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Sort and filter all 79 Corona medical groups by specialty, parent organization, group size, EHR in use and decision makers in Dmand AI.
Showing 1 to 10 of 79 medical groups in Corona
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Sunrise Medical Associates has the most physicians in Corona medical groups, with 37 across 2 groups
Dmand AI maps every Corona medical group to its parent organization, up to the health system or platform at the top. 2 parent organizations have two or more Corona medical groups. Each clinician counts once per parent organization.
- Sunrise Medical Associates
- Sunrise Medical Associates
- Sunrise Medical Associates
See every medical group, site and clinician under Sunrise Medical 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 79 Corona medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
85% of Corona 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.
Corona medical groups by ownership
- Independent67
- Health system or hospital2
- Platform or corporate owner2
- Other organization8
Source: Dmand AI Org Hierarchy Data
10 Corona 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.
Corona medical groups by site of care
- Hospitals10
- Ambulatory surgery centers3
- Therapy and rehab centers2
- Behavioral health facilities2
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Primary care groups are the most common medical groups in Corona, with 38
Each group is counted once, under its main specialty. Behavioral and mental health groups are second, with 7, and 12 Corona groups are multi-specialty.
- Primary care38
- Behavioral and mental health7
- Eye care7
- Rehabilitation and therapy4
- Emergency and hospital medicine3
- OB/GYN and women's health3
- Podiatry3
- General and specialty surgery3
- Anesthesia and pain2
- Chiropractic2
- Dermatology2
- Orthopedics and sports medicine2
- ENT and audiology1
- Pathology and laboratory1
- Radiology and imaging1
Source: Dmand AI Professional Profile Data
786 California HCPs work in Corona medical groups, 416 of them physicians
Each clinician is counted once, across every Corona group they are linked to. Only clinicians with a California address are counted.
HCPs in Corona medical groups by type
- Physicians (MD, DO)416
- Physician assistants113
- Nurses and nurse practitioners107
- Behavioral health clinicians52
- Therapists (PT and OT)31
- Other HCPs67
Source: Dmand AI Affiliation Data
Each Corona 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 Corona 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 Corona with a Medicare PAC ID.
FAQ
Frequently asked questions about medical groups in Corona
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 Corona?
There are 79 medical groups based in Corona with a Medicare PAC ID: 12 multi-specialty and 67 single-specialty. 39 of them have more than one site.
What is the largest medical group in Corona?
Hospitalist Group of Montebello, with 92 physicians and 113 HCPs with a California address. Corona Regional Medical Center is second with 87, and Corona Anesthesia Group Inc is third with 60.
Which health system has the most medical groups in Corona?
By physicians, Sunrise Medical Associates, with 37 across 2 groups, followed by Corona Summit with 10.
How many Corona medical groups are independent?
67, or 85%, have no larger parent organization in the Dmand AI org hierarchy. 2 belong to a health system or hospital and 2 to a physician platform or corporate owner.
How many Corona medical groups practice at a hospital?
10 Corona 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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