Medical groups in Costa Mesa, CA
- Medical groups
- 52
- Multi-specialty
- 6
- Single-specialty
- 46
- More than one site
- 28
- 100+ physicians
- 1
There are 52 medical groups in Costa Mesa with a Medicare PAC ID. CareConnectMD is the largest, with 131 California physicians, followed by GeriNet Medical Associates with 52. 58% of Costa Mesa groups are independent.
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CareConnectMD is the largest medical group in Costa Mesa, with 131 physicians
Ranked by physicians with a California address linked to each group based in Costa Mesa. GeriNet Medical Associates is second with 52, and Pacific Cardiovascular Associates (PCA) Medical Group third with 33. 1 Costa Mesa group has 100 or more physicians.
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Sort and filter all 52 Costa Mesa medical groups by specialty, parent organization, group size, EHR in use and decision makers in Dmand AI.
Showing 1 to 10 of 52 medical groups in Costa Mesa
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Careconnectmd has the most physicians in Costa Mesa medical groups, with 142 across 14 groups
Dmand AI maps every Costa Mesa medical group to its parent organization, up to the health system or platform at the top. 1 parent organizations have two or more Costa Mesa medical groups. Each clinician counts once per parent organization.
See every medical group, site and clinician under Careconnectmd
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 52 Costa Mesa medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
58% of Costa Mesa 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.
Costa Mesa medical groups by ownership
- Independent30
- Health system or hospital1
- Platform or corporate owner15
- Community or government1
- Other organization5
Source: Dmand AI Org Hierarchy Data
8 Costa Mesa 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.
Costa Mesa medical groups by site of care
- Therapy and rehab centers9
- Hospitals8
- Skilled nursing facilities3
- Ambulatory surgery centers2
- FQHCs1
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Primary care groups are the most common medical groups in Costa Mesa, with 23
Each group is counted once, under its main specialty. Rehabilitation and therapy groups are second, with 12, and 6 Costa Mesa groups are multi-specialty.
- Primary care23
- Rehabilitation and therapy12
- Behavioral and mental health5
- Chiropractic4
- Eye care4
- Anesthesia and pain1
- Emergency and hospital medicine1
- Podiatry1
- General and specialty surgery1
Source: Dmand AI Professional Profile Data
757 California HCPs work in Costa Mesa medical groups, 244 of them physicians
Each clinician is counted once, across every Costa Mesa group they are linked to. Only clinicians with a California address are counted.
HCPs in Costa Mesa medical groups by type
- Physicians (MD, DO)244
- Nurses and nurse practitioners181
- Therapists (PT and OT)179
- Physician assistants82
- Behavioral health clinicians31
- Other HCPs40
Source: Dmand AI Affiliation Data
Each Costa Mesa 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 Costa Mesa 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 Costa Mesa with a Medicare PAC ID.
FAQ
Frequently asked questions about medical groups in Costa Mesa
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 Costa Mesa?
There are 52 medical groups based in Costa Mesa with a Medicare PAC ID: 6 multi-specialty and 46 single-specialty. 28 of them have more than one site.
What is the largest medical group in Costa Mesa?
CareConnectMD, with 131 physicians and 199 HCPs with a California address. GeriNet Medical Associates is second with 52, and Pacific Cardiovascular Associates (PCA) Medical Group is third with 33.
How many Costa Mesa medical groups are independent?
30, or 58%, have no larger parent organization in the Dmand AI org hierarchy. 1 belong to a health system or hospital and 15 to a physician platform or corporate owner.
How many Costa Mesa medical groups practice at a hospital?
8 Costa Mesa 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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