Medical groups in Fountain Valley, CA
- Medical groups
- 74
- Multi-specialty
- 17
- Single-specialty
- 57
- More than one site
- 24
- 100+ physicians
- 1
There are 74 medical groups in Fountain Valley with a Medicare PAC ID. MemorialCare Medical Group is the largest, with 727 California physicians, followed by Premiercare Anesthesia with 54. 85% of Fountain Valley groups are independent.
Find the decision makers at all 74 Fountain Valley medical groups
Work emails and mobile numbers for practice owners, administrators and physician leaders, found through healthcare waterfall enrichment, with a free Dmand AI account.
MemorialCare Medical Group is the largest medical group in Fountain Valley, with 727 physicians
Ranked by physicians with a California address linked to each group based in Fountain Valley. Premiercare Anesthesia is second with 54, and UCI Health, Fountain Valley Emergency Department third with 16. 1 Fountain Valley group has 100 or more physicians.
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Sort and filter all 74 Fountain Valley medical groups by specialty, parent organization, group size, EHR in use and decision makers in Dmand AI.
Showing 1 to 10 of 74 medical groups in Fountain Valley
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
MemorialCare Health System has the most physicians in Fountain Valley medical groups, with 732 across 3 groups
Dmand AI maps every Fountain Valley medical group to its parent organization, up to the health system or platform at the top. 2 parent organizations have two or more Fountain Valley medical groups. Each clinician counts once per parent organization.
- MemorialCare Health System
- MemorialCare Medical Group
- Tam H. Le, MD
- 1 more Fountain Valley groups and their practice sites
See every medical group, site and clinician under MemorialCare Health System
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
For sales teams
Dmand AI maps the owners, administrators and physician leaders at each of the 74 Fountain Valley medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
85% of Fountain Valley 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.
Fountain Valley medical groups by ownership
- Independent63
- Health system or hospital5
- Platform or corporate owner3
- Other organization3
Source: Dmand AI Org Hierarchy Data
6 Fountain Valley 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.
Fountain Valley medical groups by site of care
- Hospitals6
- Ambulatory surgery centers5
- Therapy and rehab centers3
- FQHCs1
- Behavioral health facilities1
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Primary care groups are the most common medical groups in Fountain Valley, with 31
Each group is counted once, under its main specialty. Rehabilitation and therapy groups are second, with 7, and 17 Fountain Valley groups are multi-specialty.
- Primary care31
- Rehabilitation and therapy7
- Anesthesia and pain6
- Eye care5
- Behavioral and mental health3
- Chiropractic3
- OB/GYN and women's health3
- Orthopedics and sports medicine3
- General and specialty surgery3
- Pediatrics2
- Plastic and cosmetic surgery2
- Dermatology1
- Emergency and hospital medicine1
- ENT and audiology1
- Gastroenterology1
- Neurology and neurosurgery1
- Podiatry1
Source: Dmand AI Professional Profile Data
1,400 California HCPs work in Fountain Valley medical groups, 959 of them physicians
Each clinician is counted once, across every Fountain Valley group they are linked to. Only clinicians with a California address are counted.
HCPs in Fountain Valley medical groups by type
- Physicians (MD, DO)959
- Nurses and nurse practitioners169
- Physician assistants122
- Therapists (PT and OT)57
- Behavioral health clinicians22
- Other HCPs71
Source: Dmand AI Affiliation Data
Each Fountain Valley 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
Free account: 30 days free, self-serve, no credit card.
Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data
Sources for the Fountain Valley 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 Fountain Valley with a Medicare PAC ID.
FAQ
Frequently asked questions about medical groups in Fountain Valley
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 Fountain Valley?
There are 74 medical groups based in Fountain Valley with a Medicare PAC ID: 17 multi-specialty and 57 single-specialty. 24 of them have more than one site.
What is the largest medical group in Fountain Valley?
MemorialCare Medical Group, with 727 physicians and 963 HCPs with a California address. Premiercare Anesthesia is second with 54, and UCI Health, Fountain Valley Emergency Department is third with 16.
Which health system has the most medical groups in Fountain Valley?
By physicians, MemorialCare Health System, with 732 across 3 groups, followed by UC Irvine with 16.
How many Fountain Valley medical groups are independent?
63, or 85%, have no larger parent organization in the Dmand AI org hierarchy. 5 belong to a health system or hospital and 3 to a physician platform or corporate owner.
How many Fountain Valley medical groups practice at a hospital?
6 Fountain Valley 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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